From jdmv at mail.com  Sat Jul  1 06:51:51 2000
From: jdmv at mail.com (Jean-Denis Muys-Vasovic)
Date: Sat Jul  1 05:51:51 2000
Subject: C# vs Objective-C
In-Reply-To: <p04310100b582db28bbe7@[10.0.1.7]>
References: <3578268343.20000630175135@aresco.com>
 <03cc01bfe2d6$1a419e90$1501aa0a@seafax.com>
 <p04310100b582db28bbe7@[10.0.1.7]>
Message-ID: <p04320407b582e7b26fd9@[192.168.0.5]>

At 18:20 -0500 6/30/00, Chris Hanson wrote:
>At 4:59 PM -0400 6/30/00, Eric Hermanson wrote:
>>The problem is that Apple is betting their future on a language
>>(Java) which is immature, and at best has a 50/50 shot of surviving given
>>the upcoming competiton.
>
>Who in this industry has the power to promote such a language?
>
>* Sun
>
>* Microsoft
>
>* AOL
>
>* Oracle (who has hitched their cart to Java for now)
>
>* IBM (who has hitched their cart to Java for now)
>
>* Apple (maybe, but they've hitched their cart to Java for now)

Apple: probably not. Actually, Apple tried with Dylan. The Dylan 
project was started before Java became the craze. When the project 
was killed, the language design was complete, and there was an 
experimental implementation. Dylan, short for DYnamic LANguage, is a 
very high level language, very dynamic, yet designed to be easy to 
compile to efficient object code. It was also designed to support 
C-like syntaxes. It was inspired by LISP. The only that was missing, 
critical IMHO, is that it was not built around a virtual machine like 
Java.

Before that, Apple took a minority share in General Magic, a company 
with a very ambitious project for a wide area network language called 
Telescript. This one was clearly ahead of its time.

Back to the topic, I don't think any of the companies you listed has 
the power to impose a new language, with the possible exception of 
Microsoft. To make a success out of a programming language requires 
talent and luck, not power (usually: the C# attempt will prove me 
right or wrong).

The academic community already imposed successful languages, many of 
which are from the Unix heritage (awk, sed, lex, yacc), but not 
always (Perl, Python). But all these languages, while successful, are 
not successful as general purpose programming languages.

Jean-Denis

>
>* The free software community (where debates still rage about 
>whether object-oriented programming and graphical human interfaces 
>are good ideas)
>
>I don't think Apple has much to worry about with basing WebObjects on Java.
>
>--
>Chris Hanson
>bDistributed.com, Inc.
>cmh@bDistributed.com
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects


From george at xobox.com  Sat Jul  1 09:50:34 2000
From: george at xobox.com (George)
Date: Sat Jul  1 08:50:34 2000
Subject: popup window from browser?
In-Reply-To: "Shannon Rundquist"'s message of "Fri, 30 Jun 2000 18:05:02 -0700"
Message-ID: <200007011550.IAA14984@scyther.omnigroup.com>

Charles,

The only way I know to close a window is by using JavaScript.

<A HREF="javascript:self.close()">Close Window</A>

Take care,
George

Begin forwarded message:

> From: clread@mindspring.com (Charles L. Read)
> Date: 2000-07-01 00:27:16 -0400
> To: "Shannon Rundquist" <srundquist@desertsky.com>
> Subject: Re: popup window from browser?
> Cc: <webobjects@omnigroup.com>
> In-Reply-To: "Shannon Rundquist"'s message of "Fri, 30 Jun 2000 18:05:02 
> -0700"
> List-Id: Discussions of Apple's WebObjects
> <webobjects.omnigroup.com>
> X-Mailman-Version: 2.0beta3
> X-BeenThere: webobjects@omnigroup.com
> X-Mailer: Gnus v5.6.45/Emacs 20.3
> Lines: 49
>
>
> Thanks!
>
> Once the window has popped up, is
> there a way to close it from a link?
>
>
>
>
> "Shannon Rundquist" <srundquist@desertsky.com> writes:
>
> > Using   target="_blank"   in the .wod file on the link they click will bring 
> > up a new browser window.
> >
> > ----- Original Message -----
> > From: "Charles L. Read" <clread@mindspring.com>
> > To: <webobjects@omnigroup.com>
> > Sent: Friday, June 30, 2000 3:38 PM
> > Subject: popup window from browser?
> >
> >
> > >
> > >
> > > Is there a WO component that will
> > > cause a new window to be popped up
> > > from your browser in order to display
> > > some related content?
> > >
> > >
> > > NOTE I've read the postings on `mouseover'
> > > popups -- and that is not what I'm trying
> > > to do.
> > >
> > > Regards,
> > > Charlie
> > > _______________________________________________
> > > WebObjects mailing list
> > > WebObjects@omnigroup.com
> > > http://www.omnigroup.com/mailman/listinfo/webobjects
> > >
> >
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
>
> --
> Charles L. Read <charles_read@hotmail.com>
> PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
>
>

From kieren_macmillan at mac.com  Sat Jul  1 10:32:56 2000
From: kieren_macmillan at mac.com (Kieren Richard MacMillan)
Date: Sat Jul  1 09:32:56 2000
Subject: adding third-party classes (.jar, .zip, etc.) to a project
Message-ID: <B58395A0.3281%kieren_macmillan@mac.com>

Hello, all!

In building my statistics program, rather than reinvent the wheel, I scoured
the 'net and found the JSci.* classes, which include several necessary
methods (e.g. Chi-Squared Distribution). Now I would like to add this set of
classes to my WOProject.

I've searched the archive, as well as read the article on the subject at
<http://til.info.apple.com/techinfo.nsf/artnum/n70054>. However, I still
have questions, so I hope someone can help...

0. I think I have both .jar and .zip (source) files -- which is recommended?

1. My applet source is in Subproject --> ClientSideJava.subproj, but the
classes are supposed to be put into Subproject --> CommonJava.subproj. Do
imports across such path boundaries work automagically, or do I have to add
the class to my ClientSideJava.subproj as well?

2. If I've followed the instruction in the TIL article (including setting
the NSJavaUserPath in the CustomInfo.plist file and modifying the
OTHER_CLASSPATH line in the Makefile.preamble file), is there anything to
worry about when I move to deploy on another machine?

3. When I call the new method in my applet code, I get an error. Do I have
to use "import JSci.maths.statistics.*" in my code, or should it be there
automatically?

4. Any other words of advice?

Thanks a (new Integer(1,000,000))!!
 Kieren.


From Dave at Yost.com  Sat Jul  1 11:41:43 2000
From: Dave at Yost.com (Dave Yost)
Date: Sat Jul  1 10:41:43 2000
Subject: Weird problems with backtracked too far and session timed out
Message-ID: <p04320400b583ce609f91@[192.168.1.2]>

--============_-1249649198==_ma============
Content-Type: text/plain; charset="us-ascii" ; format="flowed"

$100 instant cash 
(<https://secure.paypal.com/refer/pal=Dave%40Yost.com>PayPal) to the 
first person who helps me fix this.

I'm doing standard stuff.
   nextPage = pageWithName("Page2");
   return nextPage;
The usual.  Browser is IE 5.0.1 Windows NT sp6a.  WO 4.5 unlimited.

WO starts with Page1 OK via the usual mechanism of its name being 
invoked in defaultAction().  Page1 has a simple WOForm with one text 
field and a WOActiveImage button.  Page2 has another one to Page3.

Scenario 1

Enter some text on Page1.  Click to Page2.  You get to Page2 OK. 
Then when you click the image to get to Page3, WO gives the "you've 
backtracked too far" complaint.  Weird.  Then when you click the 
browser's back button the result looks OK.

Scenario 2

Enter some text on Page1.  Click to Page2.  You get to Page2 OK. 
Click Browser's Back button.  All looks well, but it isn't.  Click 
again to Page2.  Your session has timed out.

Cache is 120 pages.  Timeout is the default.

Dave
--============_-1249649198==_ma============
Content-Type: text/html; charset="us-ascii"

<!doctype html public "-//W3C//DTD W3 HTML//EN">
<html><head><style type="text/css"><!--
blockquote, dl, ul, ol, li { margin-top: 0 ; margin-bottom: 0 }
 --></style><title>Weird problems with backtracked too far and
session ti</title></head><body>
<div>$100 instant cash (<a
href="https://secure.paypal.com/refer/pal=Dave%40Yost.com">PayPal</a
>) to the first person who helps me fix this.</div>
<div><br></div>
<div>I'm doing standard stuff.</div>
<div>&nbsp; nextPage = pageWithName(&quot;Page2&quot;);</div>
<div>&nbsp; return nextPage;</div>
<div>The usual.&nbsp; Browser is IE 5.0.1 Windows NT sp6a.&nbsp; WO
4.5 unlimited.</div>
<div><br></div>
<div>WO starts with Page1 OK via the usual mechanism of its name
being invoked in defaultAction().&nbsp; Page1 has a simple WOForm
with one text field and a WOActiveImage button.&nbsp; Page2 has
another one to Page3.</div>
<div><br></div>
<div>Scenario 1</div>
<div><br></div>
<div>Enter some text on Page1.&nbsp; Click to Page2.&nbsp; You get to
Page2 OK.&nbsp; Then when you click the image to get to Page3, WO
gives the &quot;you've backtracked too far&quot; complaint.&nbsp;
Weird.&nbsp; Then when you click the browser's back button the result
looks OK.</div>
<div><br></div>
<div>Scenario 2</div>
<div><br></div>
<div>Enter some text on Page1.&nbsp; Click to Page2.&nbsp; You get to
Page2 OK.&nbsp; Click Browser's Back button.&nbsp; All looks well,
but it isn't.&nbsp; Click again to Page2.&nbsp; Your session has
timed out.</div>
<div><br></div>
<div>Cache is 120 pages.&nbsp; Timeout is the default.</div>
<div><br></div>
<div>Dave</div>
</body>
</html>
--============_-1249649198==_ma============--

From bigdog at bulldogbeach.com  Sat Jul  1 18:44:21 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Sat Jul  1 17:44:21 2000
Subject: Multiple framework versions?
Message-ID: <B583DE4D.DC07%bigdog@bulldogbeach.com>

I've got a WebObjects 4.5 application written in Java that's heavily
dependent on some frameworks which are also written in Java, and I'd like to
deploy multiple versions of the frameworks as I refine them. So I've got
some hopefully easy-to-answer questions that I just can't find documentation
on anywhere:

    Is framework versioning ("deploy as A/B/C") still broken on NT?

    On Solaris and OS X Server, is framework versioning broken with respect
to finding resources within frameworks? In particular, I'm concerned about
eomodels, but also web server resources, plists, etc.

    How do I tell an application that it should use version B of a framework
instead of version A (or the current version)?

    Is it possible to version an application ("deploy as A/B/C")?

...Or should I just bite the bullet and rename my frameworks every single
time I rev them? This is the worst possible option, of course, because I'll
have to go through all my .wods and re-set the "framework" parameter on all
my woimages, for example. :(


-- 
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
There's always an excuse, and it usually involves coffee.


From clread at mindspring.com  Sat Jul  1 20:16:07 2000
From: clread at mindspring.com (Charles L. Read)
Date: Sat Jul  1 19:16:07 2000
Subject: EOKeyBinding warning - regarding capitalized key
Message-ID: <878zvl4cqm.fsf@mindspring.com>

I have a few `keys' (or instance variables) that
start with a capital letter - Eg, CCName.

When I compile the Java code containing these keys,
I get the following warning:

	"EOKeyBinding Warning: .... was accessed using
	a capitalized key 'CCName'.  Keys should normally
	start with a lowercase character. A typographical
	error like this could cause a crash or an infinite
	loop.  ..."

To Apple: isn't it just a bit extreme to program a software
package to crash or enter into an infinite loop based
on the case of an instance variable?

Is this really something I should worry about?

-- 
Charles L. Read <charles_read@hotmail.com>
PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65

From rtthomas at mediaone.net  Sat Jul  1 20:48:25 2000
From: rtthomas at mediaone.net (Todd Thomas)
Date: Sat Jul  1 19:48:25 2000
Subject: Multiple framework versions?
Message-ID: <200007020252.VAA01794@elmls01.ce.mediaone.net>

<fontfamily><param>Helvetica</param>On Saturday, July 1, 2000, at 07:43 =
PM, Gary Teter wrote:


<italic>I've got a WebObjects 4.5 application written in Java that's =
heavily</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>dependent on some frameworks which are =
also written in Java, and I'd like =
to</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>deploy multiple versions of the =
frameworks as I refine them. So I've =
got</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>some hopefully easy-to-answer questions =
that I just can't find =
documentation</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>on =
anywhere:</italic><color><param>0000,0000,0000</param>


<italic></italic></color><italic>    Is framework versioning ("deploy as =
A/B/C") still broken on NT?</italic><color><param>0000,0000,0000</param>


Can't answer this one..


<italic></italic></color><italic>    On Solaris and OS X Server, is =
framework versioning broken with =
respect</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>to finding resources within frameworks? =
In particular, I'm concerned =
about</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>eomodels, but also web server =
resources, plists, etc.</italic><color><param>0000,0000,0000</param>


Or this one either...=20


<italic></italic></color><italic>    How do I tell an application that =
it should use version B of a =
framework</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>instead of version A (or the current =
version)?</italic><color><param>0000,0000,0000</param>


It uses whatever version it was linked against when your app was built.. =
 in the AppKit.framework/AppKit if that's a symlink to =
AppKit.framework/Versions/C/AppKit then that's what your app will use.


<italic></italic></color><italic>    Is it possible to version an =
application ("deploy as =
A/B/C")?</italic><color><param>0000,0000,0000</param>


/Local/Applications/MyApp/Version_1.2/Blah.app

/Local/Applications/MyApp/Version_1.3/Blah.app :-)


<italic></italic></color><italic>....Or should I just bite the bullet =
and rename my frameworks every =
single</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>time I rev them? This is the worst =
possible option, of course, because =
I'll</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>have to go through all my .wods and =
re-set the "framework" parameter on =
all</italic><color><param>0000,0000,0000</param>

<italic></italic></color><italic>my woimages, for example. =
:(</italic><color><param>0000,0000,0000</param>


Where I used to work we had frameworks we deployed across OPENSTEP/Mach =
and OPENSTEP/NT. For both OSes we used paths for versioning... So we had =
something like:


/Local/Library/Frameworks/MyStuff/Ver_01/MyFoundation.framework

							=
Ver_01/MyAppKit.framework

							=
Ver_02/MyFoundation.framework

							...etc


It worked well on both platforms and you don't have to play around with =
major/minor version number framework stuff.  I also think that would =
solve any of the problems you listed above if they aren't already fixed =
in 4.5.


</color>todd<italic>


</italic></fontfamily><flushleft><fontfamily><param>Lucida =
Grande</param>---

<bold>T</bold>o<bold>d</bold>d =
<bold>T</bold>h<bold>o</bold>m<bold>a</bold>s

=
<bold>r</bold>t<bold>t</bold>h<bold>o</bold>m<bold>a</bold>s<bold>@</bold>=
m<bold>e</bold>d<bold>i</bold>a<bold>o</bold>n<bold>e</bold>.n<bold>e</bol=
d>t</fontfamily></flushleft>=

From mgoodwin at mjgc.net  Sat Jul  1 22:34:23 2000
From: mgoodwin at mjgc.net (Michael Goodwin)
Date: Sat Jul  1 21:34:23 2000
Subject: Backtracked too far on "forward" links?
Message-ID: <200007020434.VAA05161@scyther.omnigroup.com>

I'm having the "You backtracked too far.  The application backtracking 
limit of 30 has been exceeded." message on forward links.  It can happen 
within  4 actions after starting the application (submit login, link, 
link, submit), so there couldn't be 30 queued up.

What am I missing?

Thanks!

Michael

From araxia at pacbell.net  Sun Jul  2 00:09:51 2000
From: araxia at pacbell.net (Seth Milliken)
Date: Sat Jul  1 23:09:51 2000
Subject: Unexplained Exception listed in Monitor log.
In-Reply-To: <0006231623.AA087441@trinity.sunion.arizona.edu>
References: <0006231623.AA087441@trinity.sunion.arizona.edu>
Message-ID: <p04310104b5848c5655d0@[63.194.86.57]>

Steve,

FWIW, in a non-D2W WO 4.5 application I just deployed, I've been 
getting similar errors:

*** -[NSConcreteMutableArray objectAtIndex:]: index (0) beyond bounds (0)

Seth

On 4:23 PM -0700, 6/23/00, steve stout wrote:
>I have an app that uses D2W on WO 4.0.1 and I keep getting entries in the
>Death/Exception log on Monitor like the one below:
>
>*** -[NSConcreteMutableArray objectAtIndex:]: index (7) beyond bounds (3)
>
>I'm only using NSMutableArrays in two places in my code and I can't seem to
>throw the exception myself, but according to the Monitor log it happens
>quite often.  I was wondering if anyone knows if this is a bug in D2W.  Or
>is there some way that I can get more log info?
-- 
_____________________________________________________
  Seth Milliken              araxia@pacbell.net
  San Francisco              PGP Public Key Available
_____________________________________________________

From devery at powerschool.com  Sun Jul  2 06:42:36 2000
From: devery at powerschool.com (David K. Every)
Date: Sun Jul  2 05:42:36 2000
Subject: Backtracked too far on "forward" links?
In-Reply-To: <200007020434.VAA05161@scyther.omnigroup.com>
Message-ID: <B5848922.561%devery@powerschool.com>

on 7/1/00 9:37 PM, Michael Goodwin at mgoodwin@mjgc.net wrote:

> I'm having the "You backtracked too far.  The application backtracking
> limit of 30 has been exceeded." message on forward links.  It can happen
> within  4 actions after starting the application (submit login, link,
> link, submit), so there couldn't be 30 queued up.
> 
> What am I missing?

How many subcomponents on each page? Or are you using frames?
(I'm just guessing there)...

--
David K. Every
www.MacKiDo.com


From clread at mindspring.com  Sun Jul  2 10:38:07 2000
From: clread at mindspring.com (Charles L. Read)
Date: Sun Jul  2 09:38:07 2000
Subject: improve constructor for EOGenericRecord generated from EOModeler
Message-ID: <87ya3k38tu.fsf@mindspring.com>

One Entity in my EOModel is a `Customer'.
The Java code auto-generated from the EOModeler
supplies this constructor:

	public Customer() {
	  super();
	}

So, elsewhere, when I decide to use a Customer
object, the natural way to program is:

	declaration: protected Customer cust;

	creation:    cust = new Customer();

That's what I would do in any normal Java
programming environment.


However, in WO 4.5, that is not good enough.
Instead, you have to find the documentation
for EOGenericRecord and there find the relevant
specs for creating an instance of your Entity.

So in my case, the creation code becomes:
	
	EOClassDescription description =
	  EOClassDescription.classDescriptionForEntityName("Customer");
	customer = (Customer)description.createInstanceWithEditingContext(null, null);


Now, I will agree that this lends some flexibility
to Entity-creation, but it is absolutely non-intuitive.


Why can't someone at Apple simply add a (static)
virtual constructor to the EOGenericRecord class?
Just call it "EOGenericRecord.createEntity()", or
whatever.


Regards,
-- 
Charles L. Read <charles_read@hotmail.com>
PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65

From dneumann at apple.com  Sun Jul  2 13:22:13 2000
From: dneumann at apple.com (David Neumann)
Date: Sun Jul  2 12:22:13 2000
Subject: improve constructor for EOGenericRecord generated from
 EOModeler
Message-ID: <200007021922.MAA12007@scv2.apple.com>

The reason for the indirection in creating an EO instance vs. other objects
is that many different entities might actually at runtime map to the exact
same class.  There is not a one-to-one class to entity thing here. So just
creating an object isn't enough ... to tell the system what entity will
manage its persistence.

Anyway I always use DataSources to create objects.  So whether it is an
EOGenericRecrod or custom subclass, the creation in my code is always like
this:

obj = ds.createObject()

If I start with EOGenericRecord and later move to using a custom subclass,
my code doesn't have to change.

Once you create a datasource you can leave it around and reuse it... Take a
look at the costructor/class for EODatabaseDataSource.  Also look at a
convenience class called EOUtilities.


d





----------
>From: clread@mindspring.com (Charles L. Read)
>To: webobjects@omnigroup.com
>Subject: improve constructor for EOGenericRecord generated from EOModeler
>Date: Sun, Jul 2, 2000, 9:28 AM
>

>
> One Entity in my EOModel is a `Customer'.
> The Java code auto-generated from the EOModeler
> supplies this constructor:
>
>  public Customer() {
>    super();
>  }
>
> So, elsewhere, when I decide to use a Customer
> object, the natural way to program is:
>
>  declaration: protected Customer cust;
>
>  creation:    cust = new Customer();
>
> That's what I would do in any normal Java
> programming environment.
>
>
> However, in WO 4.5, that is not good enough.
> Instead, you have to find the documentation
> for EOGenericRecord and there find the relevant
> specs for creating an instance of your Entity.
>
> So in my case, the creation code becomes:
>  
>  EOClassDescription description =
>    EOClassDescription.classDescriptionForEntityName("Customer");
>  customer = (Customer)description.createInstanceWithEditingContext(null,
null);
>
>
> Now, I will agree that this lends some flexibility
> to Entity-creation, but it is absolutely non-intuitive.
>
>
> Why can't someone at Apple simply add a (static)
> virtual constructor to the EOGenericRecord class?
> Just call it "EOGenericRecord.createEntity()", or
> whatever.
>
>
> Regards,
> --
> Charles L. Read <charles_read@hotmail.com>
> PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From michael at stb.nccom.com  Sun Jul  2 13:32:40 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Sun Jul  2 12:32:40 2000
Subject: Weird problems with backtracked too far and session timed out
References: <p04320400b583ce609f91@[192.168.1.2]>
Message-ID: <395F989E.699CFD42@getasia.com>

That is weird. Hmm...

> I'm doing standard stuff.
>   nextPage = pageWithName("Page2");
>   return nextPage;
> The usual.  Browser is IE 5.0.1 Windows NT sp6a.  WO 4.5 unlimited.
> 
> WO starts with Page1 OK via the usual mechanism of its name being
> invoked in defaultAction().  Page1 has a simple WOForm with one text
> field and a WOActiveImage button.  Page2 has another one to Page3.
> 
> Scenario 1
> 
> Enter some text on Page1.  Click to Page2.  You get to Page2 OK.  Then
> when you click the image to get to Page3, WO gives the "you've
> backtracked too far" complaint.  Weird.  Then when you click the
> browser's back button the result looks OK.
> 
> Scenario 2
> 
> Enter some text on Page1.  Click to Page2.  You get to Page2 OK.
> Click Browser's Back button.  All looks well, but it isn't.  Click
> again to Page2.  Your session has timed out.
> 
> Cache is 120 pages.  Timeout is the default.


First, I know it's not the nicest solution, but what happens if you drop
the cache to zero?

Other than that, did you install over 4.0?

Michael

From bigdog at bulldogbeach.com  Sun Jul  2 13:46:02 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Sun Jul  2 12:46:02 2000
Subject: improve constructor for EOGenericRecord generated from
 EOModeler
In-Reply-To: <87ya3k38tu.fsf@mindspring.com>
Message-ID: <B584E9E9.DC31%bigdog@bulldogbeach.com>

on 7/2/00 7:28 AM, Charles L. Read at clread@mindspring.com wrote:

> One Entity in my EOModel is a `Customer'.
> The Java code auto-generated from the EOModeler
> supplies this constructor:
> 
> public Customer() {
> super();
> }
> 
> So, elsewhere, when I decide to use a Customer
> object, the natural way to program is:
> 
> declaration: protected Customer cust;
> 
> creation:    cust = new Customer();
> 
> That's what I would do in any normal Java
> programming environment.

Actually this works fine. I use it all the time.

But sometimes you won't know which class you need to create so you need to
use the classDescription constructor method. For example, let's say you have
a (contrived) inheritance hierarchy of objects like so:

Person (abstract)
    Customer (concrete)
    Employee (concrete)

Address (abstract)
    CustomerAddress (concrete)
    EmployeeAddress (concrete)

And Person has a to-many relationship defined to Address. Now let's say you
want to write a generic routine in your control layer that adds an Address
to a Person object. You could do it this way:

public WOComponent addAddressToPerson() {
    if (person() instanceof Customer) {
        CustomerAddress address = new CustomerAddress();
        session().defaultEditingContext().insertObject(address);
        // add to both sides of relationship, etc.
    } else if (person() instanceof Employee) {
        EmployeeAddress address = new EmployeeAddress();
        // etc.
    }
    // etc.
}

but it's easier to do it this way (and you don't have to update your code
when you add a new subclass of Person):

public WOComponent addAddressToPerson() {
    EOClassDescription classDescription =
        person().classDescriptionForDestinationKey("addresses");
    EOEnterpriseObject address =
        classDescription.createInstanceWithEditingContext(null,null);
    session().defaultEditingContext().insertObject(address);
    person().addObjectToBothSidesOfRelationshipWithKey(
        address,"addresses");
    // etc.
}
        

-- 
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
There's always an excuse, and it usually involves coffee.


From michael at stb.nccom.com  Sun Jul  2 13:46:33 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Sun Jul  2 12:46:33 2000
Subject: Now that's what I call a sticky situation!
References: <200006292044.NAA03842@holly.hexdreams.com>
Message-ID: <395F9BE0.E56F8E52@getasia.com>

Kenny Leung wrote:
> 
> Hi Micheal
> 
> > If the update is done with takeStoredValue, then this probably isn't a
> > good idea (overhead).
> > If it's done with takeValue, then this is ok.
> >
> > What you need to do is implement a new takeValue that compares the
> > incoming array with the existing array, and modifies it piece by piece.
> 
> The problem is that when updating to-many relationships, EOF does
> NOT set and reset the entire relationship. Instead it just swizzles
> the objects contained inside it.

Then perhaps I'm missing something -- wasn't this exactly what was
wanted?

> > > I think the real solution would be to fix keyValueCoding to use the
> > > addTo... and removeFrom... methods for to-many's, but does anybody
> > > have a solution to this?
> >
> > Odd -- on the EOF group, the idea/conclusion was to use 'valueForKey:'
> > and 'addObject:toBothSidesOfRelationshipWithKey:' as the low level
> > primitives to avoid any problems with key/value and relationships.
> 
> You can't really override
> addObject:toBothSidesOfRelationshipWithKey: because you don't know
> which object it will be called on -- the one in question, or the one
> on the opposite side of the relationship.
> 
> -Kenny

The idea here isn't so much that you override
addObject:toBothSidesOfRelationshipWithKey:, but that you use it instead
of using takeValue:forKey:. It correctly handles the case of removing an
object out of one relationship and putting it into another.

If I have a to many with a to-one inverse, and if I have object X <=>
collection C1, and then move it into collection C2, the [C2 addObject: X
toBothSidesOfRelationshipWithKey: @"key"] call will add X to C2's array,
point X back to C2, see that X was pointing to C1 before, and then
remove it from the C1 array. AddObject:... works fine even down to a
simple non-relationship key, as it does everything in terms of
takeValue... .

Incidently, the documentation states that the
addObject:toPropertyWithKey and removeObject:... calls use the addTo...
and removeFrom... methods, just like the original poster wanted.

From sb at well.com  Sun Jul  2 15:49:31 2000
From: sb at well.com (Stefan Berreth)
Date: Sun Jul  2 14:49:31 2000
Subject: custom EOFaultHandler - howto?
Message-ID: <v04220803b5856279e42e@[192.168.0.24]>

dear all,

I am trying to figure out how to write an own EOFaulthandler and 
register it with my own EO class so i can control what happens when 
-completeInitializationOfObject: is messaged to the EOFault object 
that corresponds to my EO class.

Could anybody familiar with that mechanism possible let me know how 
to approach this? Maybe with some few lines of pseudo-code?
I have been reading the documentation for EOFault and EOFaultHandler 
for some time already and it smells as if all i need to know is 
written there already - but I still don't see what i have to do.

It is still unclear to me how I would tell EOF it should use my newly 
written EOFaulaultHandler subclass when turning my specific EO class 
instance into an EOFault.

Thanks a lot - Stefan



PS: Some background: I ran into this challange while researching the 
behaviour of the LDAPAdaptor example that came with (WO)EOF 4.5. I 
have created a small test project with two models, one with an 
adaptor for an ORACLE DRBMS and the other one to an ORACLELDAP server.
When I try to traverse a relationship (to many) from an entity on the 
RDBMS model to an entity in the LDAP model i run into an exception 
that advised me to implement -[EOAccessDeferredFaultHandler 
completeInitialisationOfObject:] . This is what I am trying to 
achieve now.



s t e f a n . b e r r e t h   -   sb@well.com

pgp key fingerprint: AB14 A3F2 E163 ADA2 6444 9AC6 2942 518E 3F78 4FAF
pgp = pretty good privacy, see http://www.pgpi.org/

From clread at mindspring.com  Sun Jul  2 16:57:21 2000
From: clread at mindspring.com (Charles L. Read)
Date: Sun Jul  2 15:57:21 2000
Subject: saving to DB -- saveChanges()
Message-ID: <87r99c2r9s.fsf@mindspring.com>

I have a Customer class (in Java) that corresponds
to an Entity (of the same name) in my EOModel.

In one component, I bind several properties to
elements in the GUI.  When the user presses submit,
the WO app saves these properties to the DB, in
the usual way:

	session().defaultEditingContext().saveChanges();

Unfortunately, no new record is created in the
DB table, according to the data viewer from the
EOModel, the  off-line sql interpreter (using
`select * from Customer'), or the FrontBase
content editor.

This particular component is not using WODisplayGroups,
so that is not an issue here.

Any ideas why the saveChanges() is not working?


[NOTE I have verified that the DB is read/write,
so it does not appear to be a permissions problem.]

-- 
Charles L. Read <charles_read@hotmail.com>
PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65

From axislux at pacbell.net  Sun Jul  2 19:21:06 2000
From: axislux at pacbell.net (Joshua 'Tool User' Marker)
Date: Sun Jul  2 18:21:06 2000
Subject: Accessing elements of Session.java
In-Reply-To: <39539AA6.5B3745CD@apple.com>
Message-ID: <B5853889.205%axislux@pacbell.net>

    We make an abstract superclass (MyWoComponent.java) and have all our
components descend from it. It includes:

private Session mySession() { return (Session) session(); }

    The win here is that mySession shows up in WOB, allowing access to
session methods and variables from within that app.

    This is slightly less obnoxious than littering my code with
((Session)session()).mySessionMethod(foo, bar); all the time. I still feel
dirty, but. . . you gotta love java! (Why do ya gotta? 'cause it's the only
show in town!)

    You see, session() returns the WOSession, and you need to cast (a java
term - it makes your code feel not unlike a fractured, twisted limb; hence
'cast') the returned object to Session 'cause java is a bit nervous about
trying out methods willy-nilly on objects it's not sure can take it.

   -j (who has been writing ObjC again lately -- did you guess?)

on 12/24/99 10:29 AM, david m. richter at drichter@apple.com wrote:

>> I have added some variables to Session.java with hopes that they would
>> be global to all screens in a project.  The screen designer uses these
>> variables just fine.  My problem is--how do you access these variables
>> from a different java file (for example Main.java).  If I use (Session)
>> this.session(), it doesn't work.  All of my custom variables come back
>> as null since this.session returns type WOSession, not Session.
>> 
> 
> Hi there,
> That's a good question; what you want to do is make sure that
> you can get at those custom variables, obviously.  For this, make
> sure that your cast is working properly--check out how you used
> it.  For instance, if you're in a given different .java file (say,
> MyCustomComponent.java) and you want access to some String
> in that's in the session (and has the appropriate accessor), you'd say:
> ...
> Session s = (Session)session();
> String localString = s.sessionString();
> ...
> You already seem to know that a given WOComponent will
> know how to give you back a reference to its current Session
> instance, and you can read a bit more about it in WOInfoCenter
> or the JavaBrower.  `this' isn't needed.


From mgoodwin at mjgc.net  Sun Jul  2 23:37:42 2000
From: mgoodwin at mjgc.net (Michael Goodwin)
Date: Sun Jul  2 22:37:42 2000
Subject: saving to DB -- saveChanges()
Message-ID: <200007030537.WAA15846@scyther.omnigroup.com>

Charles,

I'm just learning this myself, but in my project I added:
     
     session().defaultEditingContext().insertObject(<theNewObject>);

prior to the saveChanges() call.  I currently have it in the action 
member from the calling page which handles the "new" selection.  This may 
need to go in the actual "save" action member along with the 
saveChanges() call to avoid saving extra records, but I haven't gotten 
that far yet.  Right now, it's saving the records though....

Hope this helps!

Michael
 
7/2/00 1:47 PM Charles L. Read

>
>I have a Customer class (in Java) that corresponds
>to an Entity (of the same name) in my EOModel.
>
>In one component, I bind several properties to
>elements in the GUI.  When the user presses submit,
>the WO app saves these properties to the DB, in
>the usual way:
>
>	session().defaultEditingContext().saveChanges();
>
>Unfortunately, no new record is created in the
>DB table, according to the data viewer from the
>EOModel, the  off-line sql interpreter (using
>`select * from Customer'), or the FrontBase
>content editor.
>
>This particular component is not using WODisplayGroups,
>so that is not an issue here.
>
>Any ideas why the saveChanges() is not working?
>
>
>[NOTE I have verified that the DB is read/write,
>so it does not appear to be a permissions problem.]
>
>-- 
>Charles L. Read <charles_read@hotmail.com>
>PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects

From info at selbstdenker.de  Mon Jul  3 00:37:35 2000
From: info at selbstdenker.de (=?ISO-8859-1?Q?Stephan=20F=FCrnrohr?=)
Date: Sun Jul  2 23:37:35 2000
Subject: [OT]  Auto restart OSX Server after power failure??
In-Reply-To: <200006301418.KAA11813@mail.byte-productions.com>
References: <200006301418.KAA11813@mail.byte-productions.com>
Message-ID: <20000703063829.27791@smtp.www-service.de>

On Fre, 30. Jun 2000, Rob Vezina <rob@byte-productions.com> wrote:

>Is there a setting in OSX Server that will restart the box after a power 
>failure like there is in OS9??

Hi!

It worked when we started the server into "normal" MacOS (all our
MacOSXSs have a little partition with MacOS 8.6 or so) and set the
preferences in the Energy-Saver (?) controlpanel. (There is a menu in the
menubar where you can set your server-preferences).

Ciao,
Stephan



--

                      STEPHAN SELBSTDENKER
            Kommunikationsdesign - Grafik - Fotografie


                      Tel.: 0941 - 5839195
                     
                 E-mail: stephan@selbstdenker.de
                 Web: http://www.selbstdenker.de

From carlos.gonzalez at bancoval.es  Mon Jul  3 02:46:48 2000
From: carlos.gonzalez at bancoval.es (Carlos Gonzalez Sanchez)
Date: Mon Jul  3 01:46:48 2000
Subject: Cannot connect to Sybase
Message-ID: <3960527A.DA51C2B9@bancoval.es>

I have made the deployment of a very simple WebObjects Application that
should access to a Sybase database. Development machine is NT, and
deployment is HP-UX.
I compiled the application with "make install", following the
instructions of linking statically the Sybase libs. with it. I created
an instance of it with Monitor, executed and  it has to make to
connection in order to retrieve a result set, it fails with the
following exception:

Error:
    EOGeneralAdaptorException
Reason:
    Exception occured while evaluating
xxxxxDisplayGroup.qualifyDataSource', on target:<Main 0x401e5df0>:
    Sybase: ct_connect(): network packet layer: internal net library
error: Net-Lib protocol driver call to connect two endpoints failed
    Socket connect failed - errno 0

It seems like it does not find the database server machine. Maybe it is
just a problem of environment variables. I tried almost everything with
no luck. ¿Can anybody help me?

Thanks





From cnyap at imageres.demon.co.uk  Mon Jul  3 03:44:09 2000
From: cnyap at imageres.demon.co.uk (Chih Nam Yap)
Date: Mon Jul  3 02:44:09 2000
Subject: Deployment issue, please advise
Message-ID: <012101bfe4d3$2680c970$2d01a8c0@tech3>

Hi there,

We are going to deploy our product to our first customer.   Can anyone
tell us what files should be deleted once our product is deployed.

Currently, we think we should delete all the .java files, is there any other
kind of files we should delete.

Thanks.


Chih Nam Yap


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From mmalc at stepwise.com  Mon Jul  3 03:50:55 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Mon Jul  3 02:50:55 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <878zvl4cqm.fsf@mindspring.com>
Message-ID: <B58620DB.94AC%mmalc@stepwise.com>

Charles L. Read wrote:

> To Apple: isn't it just a bit extreme to program a software
> package to crash or enter into an infinite loop based
> on the case of an instance variable?
> 
(Obviously not replying on Apple's behalf...)

Given the flexibility you get when you adopt the convention, no, not really.

> Is this really something I should worry about?
>
Yes.

mmalc.


From mmalc at stepwise.com  Mon Jul  3 03:53:31 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Mon Jul  3 02:53:31 2000
Subject: Problem saving information
In-Reply-To: <200007010040.RAA24587@scyther.omnigroup.com>
Message-ID: <B5862174.94AD%mmalc@stepwise.com>

Michael Goodwin wrote:

> I'm getting an EOGeneralAdaptorException in my application when I try to
> save new or updated records to the underlying database.
> Inserts and updates result in an EOAdaptorOptimisticLockingFailure.  This
> had been working, and I haven't made any configuration or other changes
> that would have caused this.
> Restarting the application, and rebooting the machine won't clear it up.
>
Have you toggled any of the conflict detection switches (the things that
look like handbags, or locks) in your EOModel?  In particular the one for
the primary key?  Or unset the primary key?

mmalc.


From mmalc at stepwise.com  Mon Jul  3 03:58:34 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Mon Jul  3 02:58:34 2000
Subject: saving to DB -- saveChanges()
In-Reply-To: <87r99c2r9s.fsf@mindspring.com>
Message-ID: <B5862297.94AE%mmalc@stepwise.com>

Charles L. Read wrote:

> session().defaultEditingContext().saveChanges();
> Unfortunately, no new record is created in the
> DB table

>
Have you inserted the new objects into the editing context?
When you're beginning with EOF it's usually safest if you always pair EO
creation with EO insertion, just so you know you've done exactly the right
thing.

    EOEnterpriseObject newCustomer = new Customer();
    theEditingContextWhereverItComesFrom_probablyTheSessionsDefaultEC.
        insertObject(newCustomer);

mmalc.


From Alexander.Lamb at dim.hcuge.ch  Mon Jul  3 04:27:58 2000
From: Alexander.Lamb at dim.hcuge.ch (Alexander Lamb)
Date: Mon Jul  3 03:27:58 2000
Subject: Discussion about characters encoding, Java and XML parsing
Message-ID: <00ac01bfe4d8$ed9ab070$a81ec381@CIHDM50>

Hello list,

I thought I would let this list share something I partly solved this
morning. It is the issue of sending non ASCII characters through HTTP to be
decoded by the XML decoder on a server application.

The situation is:

I have a WO application which listens to DirectAction calls which simply are
logs from other apps (WO or not) sent in XML format. I decode the XML using
the WOXMLDecoder and a mapping model and insert the message into a database.
Simple? Well, yes until I realized the decoder would raise an exception when
reading esoteric characters such as "é" or "à" :-)

To send the message (from a WO Java app) I was doing:

    String message = logCoder.encodeRootObjectForKey(values, "LOG");

this gave me a String sometimes containing non ASCII characters.

Then I converted it to an NSData:

    NSData requestContent = new NSData(message.getBytes());

Then I open a connection and send the whole thing:

    WOHTTPConnection connection = new WOHTTPConnection(serverName,
serverPort);
    WORequest request = new WORequest("POST", serverAction, httpVersion,
null, requestContent, null);

On the receiving side (in my DirectAction) I did:

    NSData logContent = this.request().content();
    message = myDecoder.decodeRootObject(logContent);

Well, this works fine until you send those non ASCII characters :-) At which
point the decoder raises a message!

So, I started looking into character encoding, and found that on the Java
side, you could ask for the bytes of a String specifying an encoding.
However, IMPOSSIBLE to find anywhere in the Java documentation the list of
available encodings.

Therefore, I simply tried with the following:

    NSData requestContent = new NSData(message.getBytes("Unicode"));

And guess what... it worked!
The rest of the code could stay the same. It sort of recognizes on the
decoding side that the NSData in the message content is actually Unicode and
not plain ASCII, even though I didn't append somehing like:

<?xml version="1.0" encoding="Unicode" standalone="yes"?>

In my XML stream.

Am I the first one on this list to have trouble with encoding? Is there some
documentation somewhere which would summarize better what I simply
discovered through trial and error?

In perticular:

- Where can I find the list of available encodings in Java (the actual name
Java uses, for example "Unicode").
- Is it necessary to encode in Unicode since our language here will be
French, maybe UTF8 should be enough?
- Do the WOXMLCoder WOXMLDecoder use the encoding and xml version given on
the first line of an XML stream? How does the decoder know what encoding is
used?

Alexander
________________________________
Alexander Lamb
Groupe Serveurs Applicatifs
Division d'Informatique Médicale
Hôpitaux Universitaires de Genève
alamb@dim.hcuge.ch
+41-22-372-48-46


From gregory.bernard at groupemultimedia.com  Mon Jul  3 06:40:14 2000
From: gregory.bernard at groupemultimedia.com (Gregory Bernard)
Date: Mon Jul  3 05:40:14 2000
Subject: How to reference a WO website ?
Message-ID: <B5865649.573C%gregory.bernard@groupemultimedia.com>

Dear users, 


How would you proceed to reference a web site that uses WebObjects ?

The first page of our site is dynamicŠ 

We've got problem to have a high ranking level on the various search
engines. 


Any idea will be welcome.

________________________________________________
«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Grégory Bernard       10, rue vauvilliers
Directeur Internet    75001 Paris France
Groupe Multimédia     tel : +(33) 1 40 26 79 85
________________________________________________
«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯


From sb at well.com  Mon Jul  3 06:51:29 2000
From: sb at well.com (Stefan Berreth)
Date: Mon Jul  3 05:51:29 2000
Subject: How to reference a WO website ?
In-Reply-To: <B5865649.573C%gregory.bernard@groupemultimedia.com>
References: <B5865649.573C%gregory.bernard@groupemultimedia.com>
Message-ID: <v04220800b5863b648cd1@[192.168.0.24]>

*This message was transferred with a trial version of CommuniGate(tm) Pro*
The german company Conrad (http://www.condat.de) once had a framework 
that helped web spiders to traverse a WO generated website and 
reference it the right way. However, i haven'd tried it out myself. 
You might want to have a look at that. It's called WoFindMe. See: 
http://www.condat.de/english/produkte/wo_find_me.shtml
- Stefan



>Dear users,
>
>
>How would you proceed to reference a web site that uses WebObjects ?
>
>The first page of our site is dynamicŠ 
>
>We've got problem to have a high ranking level on the various search
>engines.
>
>
>Any idea will be welcome.
>
>________________________________________________
>«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§
>¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
>Grégory Bernard       10, rue vauvilliers
>Directeur Internet    75001 Paris France
>Groupe Multimédia     tel : +(33) 1 40 26 79 85
>________________________________________________
>«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§
>¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects


s t e f a n . b e r r e t h   -   sb@well.com

pgp key fingerprint: AB14 A3F2 E163 ADA2 6444 9AC6 2942 518E 3F78 4FAF
pgp = pretty good privacy, see http://www.pgpi.org/

From fischer at kraftup.com  Mon Jul  3 07:40:04 2000
From: fischer at kraftup.com (Ingo Fischer)
Date: Mon Jul  3 06:40:04 2000
Subject: save decimal number to oracle db
Message-ID: <396097ED.1DB085A3@kraftup.com>

Hello,
I try to enter a decimal number in a oracle db.
I use BigDecimal and I set the scale to two.
In the model I choosed
External Type : Number
Internal Type : Decimal Number
External Precision : 6
External Scale : 2

The SQL-Statement is: Number(6,2).

If I save a number (e.g. 4.15 ) to the db, the error 'Invalid Value'
comes up.

Where is the error?
How can I save a number like 4.15 to an oracle db?

Thanks a lot
Ingo




From fischer at kraftup.com  Mon Jul  3 07:40:16 2000
From: fischer at kraftup.com (Ingo Fischer)
Date: Mon Jul  3 06:40:16 2000
Subject: save decimal number to oracle db
Message-ID: <396097F9.50B8AC5D@kraftup.com>

Hello,
I try to enter a decimal number in a oracle db.
I use BigDecimal and I set the scale to two.
In the model I choosed
External Type : Number
Internal Type : Decimal Number
External Precision : 6
External Scale : 2

The SQL-Statement is: Number(6,2).

If I save a number (e.g. 4.15 ) to the db, the error 'Invalid Value'
comes up.

Where is the error?
How can I save a number like 4.15 to an oracle db?

Thanks a lot
Ingo




From fischer at kraftup.com  Mon Jul  3 07:44:27 2000
From: fischer at kraftup.com (Ingo Fischer)
Date: Mon Jul  3 06:44:27 2000
Subject: save decimal number to oracle db
Message-ID: <396098F7.E3D2F67E@kraftup.com>

Hello,
I try to enter a decimal number in a oracle db.
I use BigDecimal and I set the scale to two.
In the model I choosed
External Type : Number
Internal Type : Decimal Number
External Precision : 6
External Scale : 2

The SQL-Statement is: Number(6,2).

If I save a number (e.g. 4.15 ) to the db, the error 'Invalid Value'
comes up.

Where is the error?
How can I save a number like 4.15 to an oracle db?

Thanks a lot
Ingo




From carlos.gonzalez at bancoval.es  Mon Jul  3 08:05:58 2000
From: carlos.gonzalez at bancoval.es (Carlos Gonzalez Sanchez)
Date: Mon Jul  3 07:05:58 2000
Subject: Cannot connect to Sybase
References: <3960527A.DA51C2B9@bancoval.es> <200007030915.AA19119@onestep.co.uk>
Message-ID: <39609D3E.E15055FC@bancoval.es>

I actually can connect using isql from the deployment machine. And the
connection dictionary has a hostname that is included in the "interfaces" file
of Sybase.

For some reason, I think WebObjects does not reach the interfaces file. But I
have the SYBASE_HOME variable pointing to the right path.

¿What else can I try?

David Andrew Knight wrote:

> Hi,
>
> You wrote:
> > Error:
> > EOGeneralAdaptorException
> > Reason:
> > Exception occured while evaluating
> > xxxxxDisplayGroup.qualifyDataSource', on target:<Main 0x401e5df0>:
> > Sybase: ct_connect(): network packet layer: internal net library
> > error: Net-Lib protocol driver call to connect two endpoints failed
> > Socket connect failed - errno 0
>
> Have you actually tested you can connect to the database server from the
> deployment machine ?, using isql or something.
>
> Once you can prove the machine can connect to the database server you should
> then check the EOModel, is the connection dictionary correct, maybe the
> machine had an alias under NT that is not available on the HP system.
>
> ---
> Regards David Knight    | OneStep Solutions Plc      | Solutions
>                         |                            | Workstations
> Innovative Solutions    |     UK phone: 01702 426400 | Servers
> For MacOS X, Windows NT |          fax: 01702 426420 | Security
> OPENSTEP and Solaris    | Int'l prefix: +44 1702     | Networks
> using Yellow Box and    |                            | Maintenance
> WebObjects technologies | http://www.onestep.co.uk   | Support


From Filippo.Macchiettini at concept.it  Mon Jul  3 08:53:45 2000
From: Filippo.Macchiettini at concept.it (Filippo Macchiettini)
Date: Mon Jul  3 07:53:45 2000
Subject: NSGregorianDate gregorianUnitsSinceDate() problem in Java
Message-ID: <200007031453.QAA10870@mindseal.comm2000.it>

Hi,
I have this strange problem with  
NSGregorianDate.gregorianUnitsSinceDate() in java on MacOSX:

I  compute the difference between two dates in days with these lines  
of code:


	NSGregorianDate myStartDate // assume this exists
	NSGregorianDate myStopDate // assume this exists

        NSGregorianDate.IntRef gregorianDays=new NSGregorianDate.IntRef();

        myStopDate.gregorianUnitsSinceDate(myStartDate, null, null,  
gregorianDays,null, null, null);


and it works fine if the difference is, let's say, less than 100  
days (or something like that).
If the difference is more than 100 days (or something like that:)  
the gregorianUnitsSinceDate()
method hangs and, after a bit, the MacOSX starts swapping, as it was  
recursively calling
something.

But if I insert an object to store the difference in months:

        NSGregorianDate.IntRef gregorianMonths=new  
NSGregorianDate.IntRef();

        myStartDate.gregorianUnitsSinceDate(myStopDate, null,  
gregorianMonths, gregorianDays,null, null, null);


everything works fine.


any clue?

bye Filippo


From jon at holicow.com  Mon Jul  3 09:03:52 2000
From: jon at holicow.com (Jon Nolan)
Date: Mon Jul  3 08:03:52 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <B58620DB.94AC%mmalc@stepwise.com>
References: <878zvl4cqm.fsf@mindspring.com>
Message-ID: <v04020a01b5865b0caf82@[166.70.65.250]>

>Charles L. Read wrote:
>
>> To Apple: isn't it just a bit extreme to program a software
>> package to crash or enter into an infinite loop based
>> on the case of an instance variable?

My *guess* is that is has something to do with key value coding mechanisms
possibly creating an infinite loop.  I don't know exactly how but I'd count
on the fact that the warning isn't just there to bug you.  If you feel your
code is safe in this regard there is a WOApplication method that will
suppress the warnings.  See the 4.5 release notes.

Jon Nolan

Web Dynamics, Inc.
476 Heritage Park Blvd., Suite 215
Layton, Utah  84041
Phone: 801-927-1008
Email: jon@holicow.com

From joh2002 at med.cornell.edu  Mon Jul  3 09:12:09 2000
From: joh2002 at med.cornell.edu (John Huang)
Date: Mon Jul  3 08:12:09 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <v04020a01b5865b0caf82@[166.70.65.250]>
References: <B58620DB.94AC%mmalc@stepwise.com>
 <878zvl4cqm.fsf@mindspring.com>
Message-ID: <4.2.0.58.20000702110844.00a3ae10@pop.med.cornell.edu>

I also get this warning when I call the REPORTMILL API functions to get the 
data for
my report. I put this line 
EOKeyValueCoding.KeyBinding.suppressCapitalizedKeyWarning();
in applcation.java. I am not sure if it is safe to prevent my application 
from carshing or entering
an infinite loop. Any hint.
John
At 09:03 AM 7/3/00 -0600, Jon Nolan wrote:
> >Charles L. Read wrote:
> >
> >> To Apple: isn't it just a bit extreme to program a software
> >> package to crash or enter into an infinite loop based
> >> on the case of an instance variable?
>
>My *guess* is that is has something to do with key value coding mechanisms
>possibly creating an infinite loop.  I don't know exactly how but I'd count
>on the fact that the warning isn't just there to bug you.  If you feel your
>code is safe in this regard there is a WOApplication method that will
>suppress the warnings.  See the 4.5 release notes.
>
>Jon Nolan
>
>Web Dynamics, Inc.
>476 Heritage Park Blvd., Suite 215
>Layton, Utah  84041
>Phone: 801-927-1008
>Email: jon@holicow.com
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects


From clread at mindspring.com  Mon Jul  3 09:41:04 2000
From: clread at mindspring.com (Charles L. Read)
Date: Mon Jul  3 08:41:04 2000
Subject: core dump - related to setup for WODisplayGroups?
Message-ID: <873dlr2vdf.fsf@mindspring.com>

I have the following Main.java program (appended beneath).
I have streamlined parts that I believe are not relevant.

Observations:

0. The WODisplayGroups here fetch from a `Product' table.

1. In setupAccountInfo(), if I comment out the call to

	session().defaultEditingContext().insertObject(customer);

   things work ok, but in the CustomerAccountInfo component,
   changes to the Customer object are not saved when I call

	session().defaultEditingContext().saveChanges();

2. If I comment out reference to the category1 WODispayGroup
   (ie, the code where category1 products are fetched), but
   execute the line

	session().defaultEditingContext().insertObject(customer);

   then things work ok.  IE, changes to the Customer are object
   are saved.  (Of course, we no longer have available references
   to the category1 products...)

3. The problem:  if I run everything as is -- in particular,
   as soon as the 2nd WODisplayGroup, category1, enters into
   the code, the WO app dumps core as soon as the action
   method setupAccountInfo() is invoked.  

   Inserting debugString()'s shows that setupAccountInfo()
   actually completes.  So, I am suspicious there the coredump
   happens somewhere in the initialization for CustomerAccountInfo.

Questions:

A. Why should the call to 

	session().defaultEditingContext().insertObject(customer);

   trigger a coredump?  Eg, if that line is absent, things
   work ok (though nothing is saved to DB).

B. When fetching N WODisplayGroups from the same table,
   is there any special work you need to do to setup the
   table before re-fetching for each new WODisplayGroup?


Thanks!
Charlie


--
public class Main extends WOComponent {
    /** @TypeInfo Product */
    protected Product product;

    // Holds list of products that customer has checked.
    protected NSMutableSet productCheckedList;

    // We create a display group for each category of product.
    protected WODisplayGroup category0DisplayGroup;
    protected WODisplayGroup category1DisplayGroup;

    public Main() {
        super();

	category0DisplayGroup.setDelegate(new ProductDelegate("Product", "category",
		EOQualifier.QualifierOperatorLike, new String("Category0*")));
	category0DisplayGroup.fetch();

	category1DisplayGroup.setDelegate(new ProductDelegate("Product", "category",
		EOQualifier.QualifierOperatorLike, new String("Category1*")));
        category1DisplayGroup.fetch();
    }

    public Product product() {
	return product;
    }

    public void setProduct(Product p) {
	product = p;
    }

    public CustomerAccountInfo setupAccountInfo() {
	Customer customer = new Customer();
	session().defaultEditingContext().insertObject(customer);

        CustomerAccountInfo nextPage = (CustomerAccountInfo)pageWithName("CustomerAccountInfo");

        // Initialize your component here
	nextPage.setCustomer(customer);

        return nextPage;
    }
}

From mario at cyantic.com  Mon Jul  3 09:46:33 2000
From: mario at cyantic.com (Mario Ruggiero)
Date: Mon Jul  3 08:46:33 2000
Subject: NSGregorianDate gregorianUnitsSinceDate() problem in Java
In-Reply-To: <200007031453.QAA10870@mindseal.comm2000.it>
References: <200007031453.QAA10870@mindseal.comm2000.it>
Message-ID: <200007031546.LAA08312@persepolis.cyantic.com>

We have encountered a number of problems in NSGregorianDate where the code  
appears to go into an infinite loop, leaking significant amounts of memory in  
each iteration. This usually occurs when the date is near a daylight savings  
time change, but not necessarily at the date of the change. We have not  
found any way to avoid the problem, other than to not use the offending  
methods. We also saw a similar problem in dateByAddingGregorianUnits.

The problem was supposed to have been fixed in 4.5, but we have seen it even  
in that release.

Mario Ruggiero
Cyantic Systems Corp.

Filippo Macchiettini <Filippo.Macchiettini@concept.it> wrote:
> I have this strange problem with
> NSGregorianDate.gregorianUnitsSinceDate() in java on MacOSX:
>
> I  compute the difference between two dates in days with these lines
> of code:
>
>
> NSGregorianDate myStartDate // assume this exists
> NSGregorianDate myStopDate // assume this exists
>
> NSGregorianDate.IntRef gregorianDays=new NSGregorianDate.IntRef();
>
> myStopDate.gregorianUnitsSinceDate(myStartDate, null, null,
> gregorianDays,null, null, null);
>
>
> and it works fine if the difference is, let's say, less than 100
> days (or something like that).
> If the difference is more than 100 days (or something like that:)
> the gregorianUnitsSinceDate()
> method hangs and, after a bit, the MacOSX starts swapping, as it was
> recursively calling
> something.
>
> But if I insert an object to store the difference in months:
>
> NSGregorianDate.IntRef gregorianMonths=new
> NSGregorianDate.IntRef();
>
> myStartDate.gregorianUnitsSinceDate(myStopDate, null,
> gregorianMonths, gregorianDays,null, null, null);
>
>
> everything works fine.
>
>
> any clue?
>
> bye Filippo
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> <http://www.omnigroup.com/mailman/listinfo/webobjects

From michael at stb.nccom.com  Mon Jul  3 09:53:43 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Mon Jul  3 08:53:43 2000
Subject: EOKeyBinding warning - regarding capitalized key
References: <B58620DB.94AC%mmalc@stepwise.com>
Message-ID: <3960B6C5.CBA82CAA@getasia.com>

Ok, what is gained by using this convention?

Keep in mind that previously, every table I've built has used IDFoo for
the keys for table Foo. This has the advantage that all of the keys
(primary, foreign, etc) get placed together. They normally are not class
properties, but every once in a while, ...

mmalcolm crawford wrote:
> 
> Charles L. Read wrote:
> 
> > To Apple: isn't it just a bit extreme to program a software
> > package to crash or enter into an infinite loop based
> > on the case of an instance variable?
> >
> (Obviously not replying on Apple's behalf...)
> 
> Given the flexibility you get when you adopt the convention, no, not really.
> 
> > Is this really something I should worry about?
> >
> Yes.
> 
> mmalc.
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From j-rochkind at nwu.edu  Mon Jul  3 10:00:09 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Mon Jul  3 09:00:09 2000
Subject: use WOImage to make a submit button?
In-Reply-To: <395D3A5A.7353FB92@global-village.net>
References: <87lmzm6dbr.fsf@mindspring.com>
Message-ID: <4.2.2.20000703110126.021125d8@hecky.acns.nwu.edu>

You can use WOActiveImage instead of WOImage. This translates into HTML 
like <INPUT TYPE="Image" SRC="wherever">, which is the HTML way to do an 
image submit button.

Probably easier than doing javascript tricks.

At 05:24 PM 6/30/2000 -0700, you wrote:
>Sort of.  You can
>
>1. Wrap the WOImage in a WOHyperlink
>2. Bind the WOHyperlink action to any method (it will not get called).
>3. Add an onClick = "ChangePasswordForm.submit(); return false;";
>binding the WOHyperLink
>4. Bind the action of the WOForm to whatever you want called.
>
>
>I've had sporadic luck with this.  I can not recall the exact problems
>with NS/IE but I recall it messing up keyboard or mouse navigation in
>one of them.  Maybe someone else has some suggestions as to when this
>does not work.
>
>Chuck
>
>
>"Charles L. Read" wrote:
> >
> > Can you use a WOImage to make a submit button?
> >
> > (I have not seen this done in HTML, so I assume
> > the answer is No.  But if there is any evidence
> > to the contrary, please post!)
> >
> > Regards,
> > --
> > Charles L. Read <charles_read@hotmail.com>
> > PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
>
>--
>
>Chuck Hill                                 chill@global-village.net
>Global Village Consulting Inc.             http://www.global-village.net
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From j-rochkind at nwu.edu  Mon Jul  3 10:01:45 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Mon Jul  3 09:01:45 2000
Subject: popup window from browser?
In-Reply-To: <E1389R2-0000UO-00@grasshopper.beardediris.com>
Message-ID: <4.2.2.20000703110244.02138ed0@hecky.acns.nwu.edu>

If you just bind the "TARGET" attribute of a WOHyperlink to "_blank", then 
a new window will be opened when the user cliks on that hyperlink. With 
whatever content you specify according to other attributes of the 
WOHyperLink. Or you can set the target to some name, and a new window will 
be opened with that name, and all future targets of that same name will 
open in that same window.

--Jonathan

At 05:38 PM 6/30/2000 -0500, you wrote:


>Is there a WO component that will
>cause a new window to be popped up
>from your browser in order to display
>some related content?
>
>
>NOTE I've read the postings on `mouseover'
>popups -- and that is not what I'm trying
>to do.
>
>Regards,
>Charlie
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From j-rochkind at nwu.edu  Mon Jul  3 10:06:25 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Mon Jul  3 09:06:25 2000
Subject: improve constructor for EOGenericRecord generated from
 EOModeler
In-Reply-To: <87ya3k38tu.fsf@mindspring.com>
Message-ID: <4.2.2.20000703110655.018dd638@hecky.acns.nwu.edu>

Hmm. I don't understand. I create 4.5 EOGenericRecord-descended Java EOs 
all the time with the straight no argument constructor, and it works fine. 
I've never had to much with anything in EOClassDescription. You do have to 
insert the EO into some editing context after you've created it.

Custom customer = new Customer();
session().defaultEditingContext().insertObject(customer);

always works fine for me.

--Jonathan

At 09:28 AM 7/2/2000 -0500, you wrote:

>One Entity in my EOModel is a `Customer'.
>The Java code auto-generated from the EOModeler
>supplies this constructor:
>
>         public Customer() {
>           super();
>         }
>
>So, elsewhere, when I decide to use a Customer
>object, the natural way to program is:
>
>         declaration: protected Customer cust;
>
>         creation:    cust = new Customer();
>
>That's what I would do in any normal Java
>programming environment.
>
>
>However, in WO 4.5, that is not good enough.
>Instead, you have to find the documentation
>for EOGenericRecord and there find the relevant
>specs for creating an instance of your Entity.
>
>So in my case, the creation code becomes:
>
>         EOClassDescription description =
>           EOClassDescription.classDescriptionForEntityName("Customer");
>         customer = 
> (Customer)description.createInstanceWithEditingContext(null, null);
>
>
>Now, I will agree that this lends some flexibility
>to Entity-creation, but it is absolutely non-intuitive.
>
>
>Why can't someone at Apple simply add a (static)
>virtual constructor to the EOGenericRecord class?
>Just call it "EOGenericRecord.createEntity()", or
>whatever.
>
>
>Regards,
>--
>Charles L. Read <charles_read@hotmail.com>
>PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From gino at btconnect.com  Mon Jul  3 10:10:15 2000
From: gino at btconnect.com (Gino Pacitti)
Date: Mon Jul  3 09:10:15 2000
Subject: WO GS Question
Message-ID: <3960BADC.9460EA1F@btconnect.com>

If anyone has a second would someone browse to page 125 of the 4.5
Getting Started
Manual and plese give me the correct statement:

In the book it has -

public void awakeFromInsertion(EOEditingContext context){
super.wakeFromInsertion(context);

//following is the strange line

roleName = "New Role";

//end the strange line

}

This is giving me a compile error?

There is no roleName attribute to the class and the error in the
compiler
tells me that I am trying to reference a method - of which there is -
with the
same name.




From mmalc at stepwise.com  Mon Jul  3 10:10:54 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Mon Jul  3 09:10:54 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <3960B6C5.CBA82CAA@getasia.com>
Message-ID: <B58679E5.94EC%mmalc@stepwise.com>

Michael Gersten wrote:

> Ok, what is gained by using this convention?
>
EOKeyValueCoding works as advertised, as do a number of other bindings (e.g.
in WOBuilder).

> Keep in mind that previously, every table I've built has used IDFoo for
> the keys for table Foo. This has the advantage that all of the keys
> (primary, foreign, etc) get placed together. They normally are not class
> properties, but every once in a while, ...
>
I'm not sure why what you call the table is relevant?

mmalc.
 


From mmalc at stepwise.com  Mon Jul  3 10:30:40 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Mon Jul  3 09:30:40 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <B58679E5.94EC%mmalc@stepwise.com>
Message-ID: <B5867E89.94F2%mmalc@stepwise.com>

I wrote:
>> Ok, what is gained by using this convention?
>> 
> EOKeyValueCoding works as advertised, as do a number of other bindings (e.g.
> in WOBuilder).
>
cf:

file:/System/Documentation/Developer/WebObjects/DeltaDoc/EOF.html

Enforcing Lowercase Key Names

EOF expects keys to begin with a lowercase letter. It now logs a warning if
that restriction is violated. For backwards compatibility with previous
releases which did not strictly check capitalization, you can use the
EOKeyValueCoding.KeyBinding static method suppressCapitalizedKeyWarning to
suppress the warning for capitalized keys (EOKeyBinding class method in
Objective-C). However, note that this method is deprecated and will be
removed in a future release.

mmalc.


From amy at afe.net  Mon Jul  3 10:34:53 2000
From: amy at afe.net (Amy Reynolds)
Date: Mon Jul  3 09:34:53 2000
Subject: lost data
Message-ID: <v04003a01b5866e54c735@[206.168.224.135]>

All,

We are running a webobjects application in combination with an OpenBase
database and red hat linux web server.  In the admin section of the site,
we list 15 products per page and allow 3 fields of the 10 on the page to be
edited.

Our admins NEVER use the back button (by penalty of death), but nonetheless
the price field on a couple products in the list of 15 will zero out
occasionally when changes are saved.  We are in the process of carefully
combing through our code and the SQL generated, etc.

My question for the group is -- has anyone experienced something similar,
especially those of you using OpenBase?

This problem is proving very tricky to pinpoint.  Any information regarding
similar occurrences could prove helpful.

Thanks,
Amy



From michael at stb.nccom.com  Mon Jul  3 10:50:50 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Mon Jul  3 09:50:50 2000
Subject: EOKeyBinding warning - regarding capitalized key
References: <B58679E5.94EC%mmalc@stepwise.com>
Message-ID: <3960BD5C.F90E31F3@getasia.com>

> > Ok, what is gained by using this convention?
> >
> EOKeyValueCoding works as advertised, as do a number of other bindings (e.g.
> in WOBuilder).

And why doesn't EOKeyValueCoding work with upper case letters? Do upper
case letters mean something else (not obviously documented?)

This argument sounds like "EOKeyValueCoding will work better if you
follow the convention because it won't work at all if you don't.".
 
> > Keep in mind that previously, every table I've built has used IDFoo for
> > the keys for table Foo. This has the advantage that all of the keys
> > (primary, foreign, etc) get placed together. They normally are not class
> > properties, but every once in a while, ...
> >
> I'm not sure why what you call the table is relevant?
> 
> mmalc.

It's not the table name. IDCustomer begins with an upper case I.
EOModeler gives a consistency warning on it even though it isn't a class
property.

And, on rare occasions, that IDblah does need to be a class property (a
three-way join table, for a M/M relationship involving three tables).


From mhinca at hotpop.com  Mon Jul  3 10:59:08 2000
From: mhinca at hotpop.com (Michael Henderson)
Date: Mon Jul  3 09:59:08 2000
Subject: How to reference a WO website ?
Message-ID: <NEBBKDJAGMODNNOAONDKOENKCAAA.mhinca@hotpop.com>

Hi,

This the way I started at one client's site, but never completed.
If anyone else has other ideas I'd like to hear them.

1. Read about robots at:
      http://info.webcrawler.com/mak/projects/robots/robots.html

      - great reference material.

2. buy BrowserHawk from www.cyscape.com
    - it will make detecting robots (and lots more) much easier.
    - it does not directly support WebObjects but it can be made to work
      (it's a jar file after all!)

3. Work out which parts of your site are suitable for indexing by a robot

4. Configure your web-server to get rid of the cgi-bin from the URLs in your
WOApp
   (most robots will only follow 'static' URLs)

5. Don't use form submission for navigation from the robot's start
   page to the pages you want indexed.
   (most robots won't follow form submissions).

6. Design your app so that meta keywords are inserted in the head section
   which are appropriate for the page.
   - better indexing of your pages.

7. Make sure that your app can deal with user's clicking through from a
search engine results
   page on a WO URL with an abandoned session (referer header anyone?).

8. Download an open-source robot & search-engine, such as htdig from
www.htdig.org
   set it up and index your own site

   - you might even be able to keep it in your site and integrate a full
text search

Regards,

  Michael Henderson
Web Application Construction with WebObjects
www:   http://www.behindthesite.com
email: mhenderson@behindthesite.com

-----Original Message-----
From: webobjects-admin@omnigroup.com
[mailto:webobjects-admin@omnigroup.com]On Behalf Of Gregory Bernard
Sent: Monday, July 03, 2000 1:40 PM
To: WebObjects Mailing list
Subject: How to reference a WO website ?


Dear users,


How would you proceed to reference a web site that uses WebObjects ?

The first page of our site is dynamicŠ 

We've got problem to have a high ranking level on the various search
engines.


Any idea will be welcome.

________________________________________________
«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
Grégory Bernard       10, rue vauvilliers
Directeur Internet    75001 Paris France
Groupe Multimédia     tel : +(33) 1 40 26 79 85
________________________________________________
«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§«?»¥«?»§
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_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects


From ghopson at novazen.com  Mon Jul  3 11:21:40 2000
From: ghopson at novazen.com (Geoff Hopson)
Date: Mon Jul  3 10:21:40 2000
Subject: Barcode font??
Message-ID: <200007031721.KAA16258@scyther.omnigroup.com>

Does anyone have a working barcode font that will work in WebObjects  
apps, plus ReportMill?

Thanks in advance,
Geoff

From info at iSOLUTION.de  Mon Jul  3 11:31:05 2000
From: info at iSOLUTION.de (Alexander Schneider)
Date: Mon Jul  3 10:31:05 2000
Subject: Problems with installing Deployment on Solaris
Message-ID: <p04320407b5867d77e8a7@[193.175.164.109]>

Hello,

I have seen that Bruce Fancher (way back) too had problems installing 
WO-Deployment on Solaris.

I have Solaris 8 for Intel installed on a box and now I am trying to 
install deployment WO 4.5.

I get the following error when I try to install either from CD or 
from local drive:

------------------------------------
Please enter license string: xxxxx

./pdo_licensekey: syntax error at line 1: ´(´ unexpected

Please try again.
------------------------------------

But if I try again the same happens again.

Anyone knows a solution?

Regards
Alexander Schneider
-- 
__________________________________
iSOLUTION - Alexander Schneider
Rathausallee 10     53757 Sankt Augustin
T 02241 921 567-0     F 02241 921 567-89
as@iSOLUTION.de     www.iSOLUTION.de

From kieren_macmillan at mac.com  Mon Jul  3 11:39:26 2000
From: kieren_macmillan at mac.com (Kieren Richard MacMillan)
Date: Mon Jul  3 10:39:26 2000
Subject: [REPOST] adding third-party classes (.jar, .zip, etc.) to a
 project
In-Reply-To: <B58395A0.3281%kieren_macmillan@mac.com>
Message-ID: <B58639FC.32CE%kieren_macmillan@mac.com>

Hey

Sorry for the repost, but this issue is getting critical quickly -- I
haven't been able to get this to work, and it looks like adding third-party
classes will be increasingly necessary in this project...

Thanks for any quick responses anyone can give!
 Kieren.


----------
Hello, all!

In building my statistics program, rather than reinvent the wheel, I scoured
the 'net and found the JSci.* classes, which include several necessary
methods (e.g. Chi-Squared Distribution). Now I would like to add this set of
classes to my WOProject.

I've searched the archive, as well as read the article on the subject at
<http://til.info.apple.com/techinfo.nsf/artnum/n70054>. However, I still
have questions, so I hope someone can help...

0. I think I have both .jar and .zip (source) files -- which is recommended?

1. My applet source is in Subproject --> ClientSideJava.subproj, but the
classes are supposed to be put into Subproject --> CommonJava.subproj. Do
imports across such path boundaries work automagically, or do I have to add
the class to my ClientSideJava.subproj as well?

2. If I've followed the instruction in the TIL article (including setting
the NSJavaUserPath in the CustomInfo.plist file and modifying the
OTHER_CLASSPATH line in the Makefile.preamble file), is there anything to
worry about when I move to deploy on another machine?

3. When I call the new method in my applet code, I get an error. Do I have
to use "import JSci.maths.statistics.*" in my code, or should it be there
automatically?

4. Any other words of advice?

Thanks a (new Integer(1,000,000))!!
 Kieren.



From bmarquis at ogse.com  Mon Jul  3 11:53:05 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Mon Jul  3 10:53:05 2000
Subject: WO compiling on HP-UX
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284520@SBNT4>

I've made some progress! Added /usr/lib at the end of LPATH and I can now
get the WO Examples to compile.

I'm now getting:

ld:
/disk5/tempECDemo/ogcommerce-java/ogcommerce.build/objects-optimized/NSFrame
work_ogcommerce.o: Not a valid object file (invalid system id)

when I try to compile my framework.

> -----Original Message-----
> From:	Pezzi, Robbyn J CA [SMTP:Robbyn.Pezzi@js.ca.ngb.army.mil]
> Sent:	Monday, July 03, 2000 12:05 PM
> To:	'Brian P. Marquis'
> Subject:	RE: WO compiling on HP-UX
> 
> Brian, 
> 
> Unfortunately, the two systems I had been using are TU at the moment.
> However, below is something that may help you.  It is from the "HP-UX
> Post-Installation Steps" in the apple documentation (info-center).  I know
> I appended the LPATH to include all of the ones they show below in the
> documentation.
> 
> Also think you should be able to do a : 
>      find / -name libpdo* 
> And it will tell you the file is located at.  Then you would also know
> what directory needs to be in the path. 
> 
> Tell me if things still are not going well. 
> 
> robbyn 
> 
> --------------- 
> Setting the LPATH and SHLIB_PATH Environment Variables 
> Set the LPATH environment variable to an appropriate value for your
> installation, with the following prepended to it (enter the following all
> on one line):
> 
> $NEXT_ROOT/Local/Developer/Libraries:$NEXT_ROOT/Developer/Libraries:$NEXT_
> ROOT/Local/Library/Executables:$NEXT_ROOT/Library/Executables:$NEXT_ROOT/
> Library/JDK/lib
> 
> Also set the SHLIB_PATH to the value of LPATH with: 
> 
> setenv SHLIB_PATH "$LPATH" 
> -------------- 
> 

From dwestner at apple.com  Mon Jul  3 11:53:11 2000
From: dwestner at apple.com (Dominik Westner)
Date: Mon Jul  3 10:53:11 2000
Subject: Problems with installing Deployment on Solaris
In-Reply-To: <p04320407b5867d77e8a7@[193.175.164.109]>
Message-ID: <B5869E24.10C2%dwestner@apple.com>

WebObjects does only run on Solaris for SPARC not on the Intel platform.

Greetings

Dominik

> From: Alexander Schneider <info@iSOLUTION.de>
> Date: Mon, 03 Jul 2000 19:30:42 +0200
> To: webobjects@omnigroup.com
> Subject: Problems with installing Deployment on Solaris
> 
> Hello,
> 
> I have seen that Bruce Fancher (way back) too had problems installing
> WO-Deployment on Solaris.
> 
> I have Solaris 8 for Intel installed on a box and now I am trying to
> install deployment WO 4.5.
> 
> I get the following error when I try to install either from CD or
> from local drive:
> 
> ------------------------------------
> Please enter license string: xxxxx
> 
> ./pdo_licensekey: syntax error at line 1: ´(´ unexpected
> 
> Please try again.
> ------------------------------------
> 
> But if I try again the same happens again.
> 
> Anyone knows a solution?
> 
> Regards
> Alexander Schneider
> -- 
> __________________________________
> iSOLUTION - Alexander Schneider
> Rathausallee 10     53757 Sankt Augustin
> T 02241 921 567-0     F 02241 921 567-89
> as@iSOLUTION.de     www.iSOLUTION.de
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 


From scott at openbase.com  Mon Jul  3 12:04:58 2000
From: scott at openbase.com (Scott Keith)
Date: Mon Jul  3 11:04:58 2000
Subject: lost data
Message-ID: <200007031805.OAA19148@nantucket.net>

> but nonetheless
> the price field on a couple products in the list of 15 will zero out
> occasionally when changes are saved.  

Make sure the update is followed by a successful commit.  Otherwise it may automatically rollback.  This is probably what is happening.

You may want to try turning on the SQL output.  You can do this by using the -print_sql argument when you run your WebObjects application.  You should see the SQL when you update & commit.  Send this to me and I'll be happy to help you figure out what is going on.

BTW, We haven't released OpenBase on Linux  (WebObjects 4.5 doesn't run there either).  What exactly are you running and how?  

- Scott




-----------------------------
Scott Keith
OpenBase International Ltd.
scott@openbase.com
v: 603.547.8404 f:603.547.2423

From bmarquis at ogse.com  Mon Jul  3 12:05:47 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Mon Jul  3 11:05:47 2000
Subject: WO compiling on HP-UX
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284521@SBNT4>

Got it to compile! <That just made my fourth of July :)!>

I removed the .build and .framework directories and ran make (after getting
the LPATH stuff fixed!).

Thanks to all who replied to me, both on the list and privately!

-----------------------------------
Brian Marquis
Internet Programmer
Orion Group Software Engineers
219-233-3401   Fax: 219-239-3348
http://www.ogse.com
mailto:bmarquis@ogse.com
-----------------------------------


> -----Original Message-----
> From:	Brian P. Marquis [SMTP:bmarquis@ogse.com]
> Sent:	Monday, July 03, 2000 12:59 PM
> To:	'rpezzi@fix.net'
> Cc:	Multiple recipients of list (E-mail)
> Subject:	RE: WO compiling on HP-UX
> 
> I've made some progress! Added /usr/lib at the end of LPATH and I can now
> get the WO Examples to compile.
> 
> I'm now getting:
> 
> ld:
> /disk5/tempECDemo/ogcommerce-java/ogcommerce.build/objects-optimized/NSFra
> me
> work_ogcommerce.o: Not a valid object file (invalid system id)
> 
> when I try to compile my framework.
> 
> > -----Original Message-----
> > From:	Pezzi, Robbyn J CA [SMTP:Robbyn.Pezzi@js.ca.ngb.army.mil]
> > Sent:	Monday, July 03, 2000 12:05 PM
> > To:	'Brian P. Marquis'
> > Subject:	RE: WO compiling on HP-UX
> > 
> > Brian, 
> > 
> > Unfortunately, the two systems I had been using are TU at the moment.
> > However, below is something that may help you.  It is from the "HP-UX
> > Post-Installation Steps" in the apple documentation (info-center).  I
> know
> > I appended the LPATH to include all of the ones they show below in the
> > documentation.
> > 
> > Also think you should be able to do a : 
> >      find / -name libpdo* 
> > And it will tell you the file is located at.  Then you would also know
> > what directory needs to be in the path. 
> > 
> > Tell me if things still are not going well. 
> > 
> > robbyn 
> > 
> > --------------- 
> > Setting the LPATH and SHLIB_PATH Environment Variables 
> > Set the LPATH environment variable to an appropriate value for your
> > installation, with the following prepended to it (enter the following
> all
> > on one line):
> > 
> >
> $NEXT_ROOT/Local/Developer/Libraries:$NEXT_ROOT/Developer/Libraries:$NEXT_
> >
> ROOT/Local/Library/Executables:$NEXT_ROOT/Library/Executables:$NEXT_ROOT/
> > Library/JDK/lib
> > 
> > Also set the SHLIB_PATH to the value of LPATH with: 
> > 
> > setenv SHLIB_PATH "$LPATH" 
> > -------------- 
> > 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From igsolt at yahoo.com  Mon Jul  3 12:11:25 2000
From: igsolt at yahoo.com (Igor)
Date: Mon Jul  3 11:11:25 2000
Subject: NSAPI adaptor recompiling for iPlanet
Message-ID: <007501bfe519$f1bece20$b19b0dd0@quickintl.com>

This is a multi-part message in MIME format.

------=_NextPart_000_0072_01BFE4F8.6A3DA370
Content-Type: text/plain;
	charset="Windows-1252"
Content-Transfer-Encoding: quoted-printable

Hi,
Does anyone know how to recompile WO 4.0.1 NSAPI adaptor on Solaris for =
Netscape Enterprise Server 4.0(iPlanet).
There is a documentation how to do it for Netscape 3.5 which doesn't =
work for iPlanet.

Your help would be greatly appreciated.
Thanks in advance.


------=_NextPart_000_0072_01BFE4F8.6A3DA370
Content-Type: text/html;
	charset="Windows-1252"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Dwindows-1252" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.3018.900" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Does anyone know how to recompile WO =
4.0.1 NSAPI=20
adaptor on Solaris for Netscape Enterprise Server =
4.0(iPlanet).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>There is a documentation how to do it =
for Netscape=20
3.5 which doesn't work for iPlanet.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Your help would be greatly=20
appreciated.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Thanks in advance.</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_0072_01BFE4F8.6A3DA370--


__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com


From bmarquis at ogse.com  Mon Jul  3 12:36:13 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Mon Jul  3 11:36:13 2000
Subject: No net in shared library path on HP-UX
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284522@SBNT4>

I am getting the following exception when I try to instantiate a subclass of
java.net.Socket on HPUX version 11.

java.lang.UnsatisfiedLinkError: no net in shared library path
	at java.lang.Runtime.loadLibrary(Runtime.java)
	at java.lang.System.loadLibrary(System.java)
	at 
	at 
	at mcbaSocket.<init>(mcbaSocket.java:9)
	at Session.getSocket(Session.java:37)
	at Main.processLogin(Main.java:25)

*************
import java.net.*;
import java.io.*;

public class mcbaSocket extends java.net.Socket {

    mcbaSocket( String host, int port ) throws IOException,
UnknownHostException {
        super(host,port);
        System.out.print("Connected to "+host+":"+String.valueOf(port));
    }
    public String process(String datatosend) throws IOException {
        DataOutputStream hpout;
        BufferedReader hpin;

        hpout = new DataOutputStream(new
BufferedOutputStream(getOutputStream()));
        hpin = new BufferedReader(new InputStreamReader(getInputStream()));

        hpout.writeBytes( datatosend + "\n");
        hpout.flush();

        return hpin.readLine();

    }
}

From ehermanson at gofish.com  Mon Jul  3 13:10:37 2000
From: ehermanson at gofish.com (Eric Hermanson)
Date: Mon Jul  3 12:10:37 2000
Subject: Spell Checker, Zip Code Lookup
Message-ID: <001d01bfe521$d55a0030$1501aa0a@seafax.com>

This is a multi-part message in MIME format.

------=_NextPart_000_001A_01BFE500.4DB5BD20
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi,

Does anyone know of an Obj-C interface to 'ispell' (or other full =
featured public domain spell checker)?

Or an Obj-C ZipCode --> City/State lookup system?

(either freeware or commercial)?

- Eric


------=_NextPart_000_001A_01BFE500.4DB5BD20
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4030.2400" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Does&nbsp;anyone&nbsp;know of&nbsp;an =
Obj-C=20
interface to 'ispell' (or other full featured public domain spell=20
checker)?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Or an Obj-C ZipCode --&gt; City/State =
lookup=20
system?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>(either freeware or =
commercial)?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>- Eric</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_001A_01BFE500.4DB5BD20--


From leon at drakeassociates.com  Mon Jul  3 14:32:21 2000
From: leon at drakeassociates.com (Leon Amdour)
Date: Mon Jul  3 13:32:21 2000
Subject: N elements -- one action
Message-ID: <4.3.2.7.1.20000703132630.00b08dc0@drakeassociates.com>

Hi, evreyone.

I'd like to ask for your advice.
I have a list of hyperlinks on my page. Number of links is unkown at design 
time (values come from database; I use repetition). After user clicks on 
any of them I need to go to another page (same for all links), but 
initialized with different values depending on the clicked link. Basically, 
I need to pass on to the new page an ID. What's the best way to do without 
using JavaScript? (I could set value of an ainvisible field to ID of the 
clicked link and read in my action method). Solutions involving action 
methods as well as going directly to the new page are acceptable.

Thanks in advance.

Leon


From richard at csarc.otago.ac.nz  Mon Jul  3 14:36:44 2000
From: richard at csarc.otago.ac.nz (Richard Lewis-Shell)
Date: Mon Jul  3 13:36:44 2000
Subject: Deployment system problem (shell script)
Message-ID: <007601bfe52e$50c35c60$01010101@mirrim>

Hi all,

We have a simple script we want to use to start an instance of our app, and
restart it when necessary - it's very similar to the recently posted script from
the thread "Replacing Monitor & 4.5 scheduling problems".  For long and boring
reasons, when it comes to killing the apps manually, we are unable to reliably
detect the name of the app using ps, so the best solution would seem to be to
kill the script and have the script's child processes (ie. the WOApp) also die.

But when we kill the script, the WOApp does not die, rather it switches its
parent PID to 1, and carries on.  If this script is run with a dummy process
(eg. sleep) instead of a WOApp, it works ie. kill the script, and its child
processes die too.  But a WOApp child process doesn't seem to die so easily.

Does anyone know of a way to get any standard shell (so far we have tried sh
(posix), and csh) to kill the child WOApp?

Any help appreciated,

Richard

PS. the long and boring reasons are: we are using HP-UX - which limits how much
of the command line is viewable from ps, and we have to start the apps from an
unrelated dir so any coredumps end up in one place, ending up in a rather long
absolute path to the binary, which in some cases truncates a good (bad?) amount
of the app name.
PPS. if it makes any difference, this is WO4


From j-rochkind at nwu.edu  Mon Jul  3 14:43:33 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Mon Jul  3 13:43:33 2000
Subject: N elements -- one action
In-Reply-To: <4.3.2.7.1.20000703132630.00b08dc0@drakeassociates.com>
Message-ID: <4.2.2.20000703154317.02108c78@hecky.acns.nwu.edu>

In the action method for the hyperlink, you can figure out which hyperlink 
was clicked on. What variable is bound to the 'item' in the 
WORepetition?  You can look at this variable in the action method, and it 
will magically be bound to the object corresponding to the iteration of the 
repetition in which the particular hyperlink chosen was output. Make sense?

--Jonathan

At 01:32 PM 7/3/2000 -0700, you wrote:
>Hi, evreyone.
>
>I'd like to ask for your advice.
>I have a list of hyperlinks on my page. Number of links is unkown at 
>design time (values come from database; I use repetition). After user 
>clicks on any of them I need to go to another page (same for all links), 
>but initialized with different values depending on the clicked link. 
>Basically, I need to pass on to the new page an ID. What's the best way to 
>do without using JavaScript? (I could set value of an ainvisible field to 
>ID of the clicked link and read in my action method). Solutions involving 
>action methods as well as going directly to the new page are acceptable.
>
>Thanks in advance.
>
>Leon
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From wostas at mac.com  Mon Jul  3 14:49:38 2000
From: wostas at mac.com (Stas Pietrucha)
Date: Mon Jul  3 13:49:38 2000
Subject: N elements -- one action
Message-ID: <200007032059.QAA11991@eagle.mwc.edu>

When you use a repetition, you will have some variable bound to the 
"item".  Bind an action, "foo" to the hyperlink, then in foo(), the 
variable bound to "item" will correspond to the exact hyperlink you 
clicked!  Just pass the item to the next page before you return it.

public Person personIter; // bound to the repetition's "item"
public NSArray arrayOfUnknownPersonsFromTheDatabase; // bound to the 
repetition's "list"

public WOComponent foo() {
     SomePage nextPage = (SomePage)pageWithName("SomePage");
     nextPage.setPerson(personIter);
     return nextPage;
}

That's the magic of WebObjects!

You wrote:

>Hi, evreyone.
>
>I'd like to ask for your advice.
>I have a list of hyperlinks on my page. Number of links is unkown at design 
>time (values come from database; I use repetition). After user clicks on 
>any of them I need to go to another page (same for all links), but 
>initialized with different values depending on the clicked link. Basically, 
>I need to pass on to the new page an ID. What's the best way to do without 
>using JavaScript? (I could set value of an ainvisible field to ID of the 
>clicked link and read in my action method). Solutions involving action 
>methods as well as going directly to the new page are acceptable.
>
>Thanks in advance.
>
>Leon
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects


Stas Pietrucha
Houston, TX

http://www.wostas.com/


From leon at drakeassociates.com  Mon Jul  3 14:53:17 2000
From: leon at drakeassociates.com (Leon Amdour)
Date: Mon Jul  3 13:53:17 2000
Subject: [DONE] N elements -- one action
In-Reply-To: <4.2.2.20000703154317.02108c78@hecky.acns.nwu.edu>
References: <4.3.2.7.1.20000703132630.00b08dc0@drakeassociates.com>
Message-ID: <4.3.2.7.1.20000703135316.00adaf00@drakeassociates.com>

Cool stuff! That was easy. Thanks a lot.

Leon

>In the action method for the hyperlink, you can figure out which hyperlink 
>was clicked on. What variable is bound to the 'item' in the 
>WORepetition?  You can look at this variable in the action method, and it 
>will magically be bound to the object corresponding to the iteration of 
>the repetition in which the particular hyperlink chosen was output. Make sense?
>
>--Jonathan
>
>At 01:32 PM 7/3/2000 -0700, you wrote:
>>Hi, evreyone.
>>
>>I'd like to ask for your advice.
>>I have a list of hyperlinks on my page. Number of links is unkown at 
>>design time (values come from database; I use repetition). After user 
>>clicks on any of them I need to go to another page (same for all links), 
>>but initialized with different values depending on the clicked link. 
>>Basically, I need to pass on to the new page an ID. What's the best way 
>>to do without using JavaScript? (I could set value of an ainvisible field 
>>to ID of the clicked link and read in my action method). Solutions 
>>involving action methods as well as going directly to the new page are 
>>acceptable.
>>
>>Thanks in advance.
>>
>>Leon
>>
>>_______________________________________________
>>WebObjects mailing list
>>WebObjects@omnigroup.com
>>http://www.omnigroup.com/mailman/listinfo/webobjects
>
>
>



From bmarquis at ogse.com  Mon Jul  3 15:10:06 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Mon Jul  3 14:10:06 2000
Subject: [DONE] N elements -- one action
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284523@SBNT4>

Be certain to check that this works when the user clicks the back button. I
ran into problems with repetitions where I was using a list which varied in
length. In my case, it was a drill-down page of categories and it's
children. It's easy enough to work around the problems, just be certain to
test backtracking when you use repetitions.

> -----Original Message-----
> From:	Leon Amdour [SMTP:leon@drakeassociates.com]
> Sent:	Monday, July 03, 2000 3:54 PM
> To:	Jonathan Rochkind; webobjects@omnigroup.com
> Subject:	[DONE] N elements -- one action
> 
> Cool stuff! That was easy. Thanks a lot.
> 
> Leon
> 
> >In the action method for the hyperlink, you can figure out which
> hyperlink 
> >was clicked on. What variable is bound to the 'item' in the 
> >WORepetition?  You can look at this variable in the action method, and it
> 
> >will magically be bound to the object corresponding to the iteration of 
> >the repetition in which the particular hyperlink chosen was output. Make
> sense?
> >
> >--Jonathan
> >
> >At 01:32 PM 7/3/2000 -0700, you wrote:
> >>Hi, evreyone.
> >>
> >>I'd like to ask for your advice.
> >>I have a list of hyperlinks on my page. Number of links is unkown at 
> >>design time (values come from database; I use repetition). After user 
> >>clicks on any of them I need to go to another page (same for all links),
> 
> >>but initialized with different values depending on the clicked link. 
> >>Basically, I need to pass on to the new page an ID. What's the best way 
> >>to do without using JavaScript? (I could set value of an ainvisible
> field 
> >>to ID of the clicked link and read in my action method). Solutions 
> >>involving action methods as well as going directly to the new page are 
> >>acceptable.
> >>
> >>Thanks in advance.
> >>
> >>Leon
> >>
> >>_______________________________________________
> >>WebObjects mailing list
> >>WebObjects@omnigroup.com
> >>http://www.omnigroup.com/mailman/listinfo/webobjects
> >
> >
> >
> 
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From froy at singleentry.com  Mon Jul  3 16:01:03 2000
From: froy at singleentry.com (Fabien Roy)
Date: Mon Jul  3 15:01:03 2000
Subject: Deployment system problem (shell script)
Message-ID: <200007032200.RAA05561@bob.singleentry.com>

Some suggestions:

Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept  
the bsd ps in "/usr/ucb" and I really understand why :-).

In the ObjC launcher  you could write (using NSProcessInfo and  
getpid())  to a file the process id and the interesting arguments of  
the process. I would suggest to use the process id concatenated with  
the name of the process as the file name. Then you will have to  
remove that file when you kill the process.

Hope that helps.

Fabien

--
    |\      _,,,---,,_      Fabien Roy
    /,`.-'`'    -.  ;-;;,_  Singleentry.com
   |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
  '---''(_/--'  `-'\_)      Lakeway, TX 78734
Tel: (512) 266-6379 ext 1350
Fax: (512) 266-6375
Mob: (512) 796-9854
http://www.singleentry.com


From michael at stb.nccom.com  Mon Jul  3 16:14:47 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Mon Jul  3 15:14:47 2000
Subject: Deployment system problem (shell script)
References: <200007032200.RAA05561@bob.singleentry.com>
Message-ID: <39611015.6B88334E@getasia.com>

You want to use 'trap' in the shell script to catch the kill signal. You
can then kill the WOApp explicitly.

Most likely, you'll want to start the WOApp in the background, save it
in a variable, and then use that in your kill statement.

Fabien Roy wrote:
> 
> Some suggestions:
> 
> Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> the bsd ps in "/usr/ucb" and I really understand why :-).
> 
> In the ObjC launcher  you could write (using NSProcessInfo and
> getpid())  to a file the process id and the interesting arguments of
> the process. I would suggest to use the process id concatenated with
> the name of the process as the file name. Then you will have to
> remove that file when you kill the process.
> 
> Hope that helps.
> 
> Fabien
> 
> --
>     |\      _,,,---,,_      Fabien Roy
>     /,`.-'`'    -.  ;-;;,_  Singleentry.com
>    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
>   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> Tel: (512) 266-6379 ext 1350
> Fax: (512) 266-6375
> Mob: (512) 796-9854
> http://www.singleentry.com
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From richard at csarc.otago.ac.nz  Mon Jul  3 16:46:52 2000
From: richard at csarc.otago.ac.nz (Richard Lewis-Shell)
Date: Mon Jul  3 15:46:52 2000
Subject: Deployment system problem (shell script)
In-Reply-To: <39611015.6B88334E@getasia.com>
Message-ID: <008401bfe540$4e3ad790$01010101@mirrim>

Thanks so far...

The ps man page _claims_ that it prints all the info avaiable from the kernel,
so I am not convinced that another flavour of ps will have any more luck.

As for background launching/trapping signals, I tried this, without much luck.
The point of the script is to firstly start the app and then restart it when/if
it finishes.  Thus the launch command sits within a while (true) loop.  If I
start it in the background, this will spawn processes like there's no tomorrow,
and bad things will happen.  I tried grabbing the pid of the app once it was
started in the background, then returning it to the foreground (fg), and tried
to use a signal trap to stop the now known child pid, but the signal routine is
not executed until the foreground process completes!

I'm going round in circles.  Perhaps the only option is to use pid files, or to
search for processes started by the script (ie. ppid = script pid), and kill
them after the script has been killed.  This seems a little more fragile than
necessary - I just thought there might be some cunning way of telling a shell
script to kill its children when it dies...

Richard

> -----Original Message-----
> From: Michael Gersten [mailto:michael@getasia.com]
> Sent: Tuesday, 4 July 2000 10:14
> To: froy@singleentry.com
> Cc: Richard Lewis-Shell; webobjects@omnigroup.com
> Subject: Re: Deployment system problem (shell script)
>
>
> You want to use 'trap' in the shell script to catch the kill signal. You
> can then kill the WOApp explicitly.
>
> Most likely, you'll want to start the WOApp in the background, save it
> in a variable, and then use that in your kill statement.
>
> Fabien Roy wrote:
> >
> > Some suggestions:
> >
> > Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> > the bsd ps in "/usr/ucb" and I really understand why :-).
> >
> > In the ObjC launcher  you could write (using NSProcessInfo and
> > getpid())  to a file the process id and the interesting arguments of
> > the process. I would suggest to use the process id concatenated with
> > the name of the process as the file name. Then you will have to
> > remove that file when you kill the process.
> >
> > Hope that helps.
> >
> > Fabien
> >
> > --
> >     |\      _,,,---,,_      Fabien Roy
> >     /,`.-'`'    -.  ;-;;,_  Singleentry.com
> >    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
> >   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> > Tel: (512) 266-6379 ext 1350
> > Fax: (512) 266-6375
> > Mob: (512) 796-9854
> > http://www.singleentry.com
> >
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
>


From michael at stb.nccom.com  Mon Jul  3 17:05:55 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Mon Jul  3 16:05:55 2000
Subject: Deployment system problem (shell script)
References: <008401bfe540$4e3ad790$01010101@mirrim>
Message-ID: <39611C0C.34AD3A73@getasia.com>

Ahh -- <slap head> -- try using a '-ww' argument to your ps. On ever ps
I've seen, adding w's makes it wider.

However, I've seen some where '-ww' means 'infinite width', and some
where each 'w' means 'add 8 to the width'.

Richard Lewis-Shell wrote:
> 
> Thanks so far...
> 
> The ps man page _claims_ that it prints all the info avaiable from the kernel,
> so I am not convinced that another flavour of ps will have any more luck.
> 
> As for background launching/trapping signals, I tried this, without much luck.
> The point of the script is to firstly start the app and then restart it when/if
> it finishes.  Thus the launch command sits within a while (true) loop.  If I
> start it in the background, this will spawn processes like there's no tomorrow,
> and bad things will happen.  I tried grabbing the pid of the app once it was
> started in the background, then returning it to the foreground (fg), and tried
> to use a signal trap to stop the now known child pid, but the signal routine is
> not executed until the foreground process completes!
> 
> I'm going round in circles.  Perhaps the only option is to use pid files, or to
> search for processes started by the script (ie. ppid = script pid), and kill
> them after the script has been killed.  This seems a little more fragile than
> necessary - I just thought there might be some cunning way of telling a shell
> script to kill its children when it dies...
> 
> Richard
> 
> > -----Original Message-----
> > From: Michael Gersten [mailto:michael@getasia.com]
> > Sent: Tuesday, 4 July 2000 10:14
> > To: froy@singleentry.com
> > Cc: Richard Lewis-Shell; webobjects@omnigroup.com
> > Subject: Re: Deployment system problem (shell script)
> >
> >
> > You want to use 'trap' in the shell script to catch the kill signal. You
> > can then kill the WOApp explicitly.
> >
> > Most likely, you'll want to start the WOApp in the background, save it
> > in a variable, and then use that in your kill statement.
> >
> > Fabien Roy wrote:
> > >
> > > Some suggestions:
> > >
> > > Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> > > the bsd ps in "/usr/ucb" and I really understand why :-).
> > >
> > > In the ObjC launcher  you could write (using NSProcessInfo and
> > > getpid())  to a file the process id and the interesting arguments of
> > > the process. I would suggest to use the process id concatenated with
> > > the name of the process as the file name. Then you will have to
> > > remove that file when you kill the process.
> > >
> > > Hope that helps.
> > >
> > > Fabien
> > >
> > > --
> > >     |\      _,,,---,,_      Fabien Roy
> > >     /,`.-'`'    -.  ;-;;,_  Singleentry.com
> > >    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
> > >   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> > > Tel: (512) 266-6379 ext 1350
> > > Fax: (512) 266-6375
> > > Mob: (512) 796-9854
> > > http://www.singleentry.com
> > >
> > > _______________________________________________
> > > WebObjects mailing list
> > > WebObjects@omnigroup.com
> > > http://www.omnigroup.com/mailman/listinfo/webobjects
> >

From michael at stb.nccom.com  Mon Jul  3 17:10:25 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Mon Jul  3 16:10:25 2000
Subject: Deployment system problem (shell script)
References: <008401bfe540$4e3ad790$01010101@mirrim>
Message-ID: <39611D1F.31060DBF@getasia.com>

> As for background launching/trapping signals, I tried this, without much luck.
> The point of the script is to firstly start the app and then restart it when/if
> it finishes.  Thus the launch command sits within a while (true) loop.  If I
> start it in the background, this will spawn processes like there's no tomorrow,
> and bad things will happen.  I tried grabbing the pid of the app once it was
> started in the background, then returning it to the foreground (fg), and tried
> to use a signal trap to stop the now known child pid, but the signal routine is
> not executed until the foreground process completes!

Ok, then try something like this:

while : 
do
	while [ kill -0 $CHILD ] 
	do
		sleep $DELAY
	done

	# code to restart the now dead app
done 

Adjust $DELAY as needed -- '2' should work fine.

> I'm going round in circles.  Perhaps the only option is to use pid files, or to
> search for processes started by the script (ie. ppid = script pid), and kill
> them after the script has been killed.  This seems a little more fragile than
> necessary - I just thought there might be some cunning way of telling a shell
> script to kill its children when it dies...

You can, actually. 'kill 0' will kill everything in the process group.

Before job control (read: sh, not csh, not bash), every backgrounded
process was in the shell's process group.

Job control shells start each backgrounded child in a new process group.
 
> Richard
> 
> > -----Original Message-----
> > From: Michael Gersten [mailto:michael@getasia.com]
> > Sent: Tuesday, 4 July 2000 10:14
> > To: froy@singleentry.com
> > Cc: Richard Lewis-Shell; webobjects@omnigroup.com
> > Subject: Re: Deployment system problem (shell script)
> >
> >
> > You want to use 'trap' in the shell script to catch the kill signal. You
> > can then kill the WOApp explicitly.
> >
> > Most likely, you'll want to start the WOApp in the background, save it
> > in a variable, and then use that in your kill statement.
> >
> > Fabien Roy wrote:
> > >
> > > Some suggestions:
> > >
> > > Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> > > the bsd ps in "/usr/ucb" and I really understand why :-).
> > >
> > > In the ObjC launcher  you could write (using NSProcessInfo and
> > > getpid())  to a file the process id and the interesting arguments of
> > > the process. I would suggest to use the process id concatenated with
> > > the name of the process as the file name. Then you will have to
> > > remove that file when you kill the process.
> > >
> > > Hope that helps.
> > >
> > > Fabien
> > >
> > > --
> > >     |\      _,,,---,,_      Fabien Roy
> > >     /,`.-'`'    -.  ;-;;,_  Singleentry.com
> > >    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
> > >   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> > > Tel: (512) 266-6379 ext 1350
> > > Fax: (512) 266-6375
> > > Mob: (512) 796-9854
> > > http://www.singleentry.com
> > >
> > > _______________________________________________
> > > WebObjects mailing list
> > > WebObjects@omnigroup.com
> > > http://www.omnigroup.com/mailman/listinfo/webobjects
> >
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From clread at mindspring.com  Mon Jul  3 17:20:45 2000
From: clread at mindspring.com (Charles L. Read)
Date: Mon Jul  3 16:20:45 2000
Subject: [REPOST] setup for WODisplayGroups leads to core dumps.
In-Reply-To: clread@mindspring.com's message of "03 Jul 2000 08:31:24 -0500"
References: <873dlr2vdf.fsf@mindspring.com>
Message-ID: <874s665388.fsf@mindspring.com>

Any help appreciated!

--- reposting ---

I have the following Main.java program (appended beneath).
I have streamlined parts that I believe are not relevant.

Observations:

0. The WODisplayGroups here fetch from a `Product' table.

1. In setupAccountInfo(), if I comment out the call to

	session().defaultEditingContext().insertObject(customer);

   things work ok, but in the CustomerAccountInfo component,
   changes to the Customer object are not saved when I call

	session().defaultEditingContext().saveChanges();

2. If I comment out reference to the category1 WODispayGroup
   (ie, the code where category1 products are fetched), but
   execute the line

	session().defaultEditingContext().insertObject(customer);

   then things work ok.  IE, changes to the Customer are object
   are saved.  (Of course, we no longer have available references
   to the category1 products...)

3. The problem:  if I run everything as is -- in particular,
   as soon as the 2nd WODisplayGroup, category1, enters into
   the code, the WO app dumps core as soon as the action
   method setupAccountInfo() is invoked.  

   Inserting debugString()'s shows that setupAccountInfo()
   actually completes.  So, I am suspicious there the coredump
   happens somewhere in the initialization for CustomerAccountInfo.

Questions:

A. Why should the call to 

	session().defaultEditingContext().insertObject(customer);

   trigger a coredump?  Eg, if that line is absent, things
   work ok (though nothing is saved to DB).

B. When fetching N WODisplayGroups from the same table,
   is there any special work you need to do to setup the
   table before re-fetching for each new WODisplayGroup?


Thanks!
Charlie


--
public class Main extends WOComponent {
    /** @TypeInfo Product */
    protected Product product;

    // Holds list of products that customer has checked.
    protected NSMutableSet productCheckedList;

    // We create a display group for each category of product.
    protected WODisplayGroup category0DisplayGroup;
    protected WODisplayGroup category1DisplayGroup;

    public Main() {
        super();

	category0DisplayGroup.setDelegate(new ProductDelegate("Product", "category",
		EOQualifier.QualifierOperatorLike, new String("Category0*")));
	category0DisplayGroup.fetch();

	category1DisplayGroup.setDelegate(new ProductDelegate("Product", "category",
		EOQualifier.QualifierOperatorLike, new String("Category1*")));
        category1DisplayGroup.fetch();
    }

    public Product product() {
	return product;
    }

    public void setProduct(Product p) {
	product = p;
    }

    public CustomerAccountInfo setupAccountInfo() {
	Customer customer = new Customer();
	session().defaultEditingContext().insertObject(customer);

        CustomerAccountInfo nextPage = (CustomerAccountInfo)pageWithName("CustomerAccountInfo");

        // Initialize your component here
	nextPage.setCustomer(customer);

        return nextPage;
    }
}

From john.zollinger at sundog.com  Mon Jul  3 17:21:39 2000
From: john.zollinger at sundog.com (John Zollinger)
Date: Mon Jul  3 16:21:39 2000
Subject: ProjectBuilder make question...
In-Reply-To: <200007031902.MAA22423@scyther.omnigroup.com>
Message-ID: <NBBBKLGLKDCFEFOHFBCOCEEHECAA.john.zollinger@sundog.com>

Hi ya,

I'm trying to use a different make tool, but project builder seems to have
the parameters passed to the indicated build tool hard coded to be "-f
Makefile".  Does anyone know of a way to change that (short of hex editing
the .exe)?  I don't want it to pass anything, just execute the build tool I
tell it, and then pass the parameters that I tell it too.

Any ideas?  Thanks!

John Zollinger
Sundog Technologies, Inc.
john.zollinger@sundog.com

http://www.sundog.com/


From richard at csarc.otago.ac.nz  Mon Jul  3 19:14:30 2000
From: richard at csarc.otago.ac.nz (Richard Lewis-Shell)
Date: Mon Jul  3 18:14:30 2000
Subject: Deployment system problem (shell script)
In-Reply-To: <39611D1F.31060DBF@getasia.com>
Message-ID: <008d01bfe555$1a970930$01010101@mirrim>

Thanks Michael

That 'polling' solution would work for us.  FYI, '-w' does not work with HP-UX's
ps - here is a snippet from the 10.20 ps man page:
"Only a subset of the command line is saved by the kernel; as much of the
command line will be displayed as is available."

In case anyone is interested in our current, and hopefully final, solution, we
decided to modify the 'stop' script to kill the child processes that might be
orphaned after the 'loop' script is killed.  Not quite as encapsulated as it
could be, but the 'loop' script remains very simple (no background processes, no
signal trapping), and only a couple more lines were needed in the 'stop' script.

Phew - thanks all for your help,

Richard

> -----Original Message-----
> From: Michael Gersten [mailto:michael@getasia.com]
> Sent: Tuesday, 4 July 2000 11:09
> To: Richard Lewis-Shell
> Cc: michael@stb.nccom.com; froy@singleentry.com;
> webobjects@omnigroup.com
> Subject: Re: Deployment system problem (shell script)
>
>
> > As for background launching/trapping signals, I tried this, without
> much luck.
> > The point of the script is to firstly start the app and then
> restart it when/if
> > it finishes.  Thus the launch command sits within a while (true) loop.  If I
> > start it in the background, this will spawn processes like there's
> no tomorrow,
> > and bad things will happen.  I tried grabbing the pid of the app once it was
> > started in the background, then returning it to the foreground
> (fg), and tried
> > to use a signal trap to stop the now known child pid, but the
> signal routine is
> > not executed until the foreground process completes!
>
> Ok, then try something like this:
>
> while :
> do
> 	while [ kill -0 $CHILD ]
> 	do
> 		sleep $DELAY
> 	done
>
> 	# code to restart the now dead app
> done
>
> Adjust $DELAY as needed -- '2' should work fine.
>
> > I'm going round in circles.  Perhaps the only option is to use pid
> files, or to
> > search for processes started by the script (ie. ppid = script pid), and kill
> > them after the script has been killed.  This seems a little more
> fragile than
> > necessary - I just thought there might be some cunning way of
> telling a shell
> > script to kill its children when it dies...
>
> You can, actually. 'kill 0' will kill everything in the process group.
>
> Before job control (read: sh, not csh, not bash), every backgrounded
> process was in the shell's process group.
>
> Job control shells start each backgrounded child in a new process group.
>
> > Richard
> >
> > > -----Original Message-----
> > > From: Michael Gersten [mailto:michael@getasia.com]
> > > Sent: Tuesday, 4 July 2000 10:14
> > > To: froy@singleentry.com
> > > Cc: Richard Lewis-Shell; webobjects@omnigroup.com
> > > Subject: Re: Deployment system problem (shell script)
> > >
> > >
> > > You want to use 'trap' in the shell script to catch the kill signal. You
> > > can then kill the WOApp explicitly.
> > >
> > > Most likely, you'll want to start the WOApp in the background, save it
> > > in a variable, and then use that in your kill statement.
> > >
> > > Fabien Roy wrote:
> > > >
> > > > Some suggestions:
> > > >
> > > > Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> > > > the bsd ps in "/usr/ucb" and I really understand why :-).
> > > >
> > > > In the ObjC launcher  you could write (using NSProcessInfo and
> > > > getpid())  to a file the process id and the interesting arguments of
> > > > the process. I would suggest to use the process id concatenated with
> > > > the name of the process as the file name. Then you will have to
> > > > remove that file when you kill the process.
> > > >
> > > > Hope that helps.
> > > >
> > > > Fabien
> > > >
> > > > --
> > > >     |\      _,,,---,,_      Fabien Roy
> > > >     /,`.-'`'    -.  ;-;;,_  Singleentry.com
> > > >    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
> > > >   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> > > > Tel: (512) 266-6379 ext 1350
> > > > Fax: (512) 266-6375
> > > > Mob: (512) 796-9854
> > > > http://www.singleentry.com
> > > >
> > > > _______________________________________________
> > > > WebObjects mailing list
> > > > WebObjects@omnigroup.com
> > > > http://www.omnigroup.com/mailman/listinfo/webobjects
> > >
> >
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
>


From gsl at mail.utexas.edu  Mon Jul  3 19:23:00 2000
From: gsl at mail.utexas.edu (G Shane Lewis)
Date: Mon Jul  3 18:23:00 2000
Subject: Oracle connection questions
Message-ID: <39614A63.6CEA8918@mail.utexas.edu>

Two beginner questions:

I've just installed WO on Win2k, and when I try to initiate a connection
using the Oracle driver, after typing my info into the logon  panel, I
get an empty error msg box.  This happens in both the EOModeller and in
the Project Builder.  I have been able to get connected to the Oracle
database via the generic ODBC driver in the EOModeller, but I'd prefer
to use the native drivers if possible.

The second problem is that my WOApplications suffer a connection
time-out looking for a database.  The status bar says: "Contacting
localhost:1065", but it never finds it.  This happens using the ODBC
driver to try to retrieve data from Oracle.  It also happens using the
OpenBaseLite database offered as an example in the tutorials.  This is
frustrating because I was able to make this connection fine, running WO
on NT Server.

Any advice greatly appreciated.
Shane Lewis
gsl@mail.utexas.edu


From rob at medicalhost.com  Mon Jul  3 19:33:56 2000
From: rob at medicalhost.com (Robert A. Decker)
Date: Mon Jul  3 18:33:56 2000
Subject: wml through monitor?
Message-ID: <39613E24.746E8CC9@medicalhost.com>

Has anyone written a Monitor equivalent that supports Wireless Markup
Language for access through a device like a cell phone?

thanks,
rob



From mlaster at metavillage.com  Mon Jul  3 20:27:12 2000
From: mlaster at metavillage.com (Mike Laster)
Date: Mon Jul  3 19:27:12 2000
Subject: CVS and *.WO, a bad match!
In-Reply-To: <395B95D6.AB2404E7@getasia.com>
Message-ID: <2904249.3171652011@[192.168.1.114]>

*This message was transferred with a trial version of CommuniGate(tm) Pro*
--On Thursday, June 29, 2000 1:30 PM -0500 Michael Gersten 
<michael@getasia.com> wrote:

> I don't have a good solution, other than constantly copying the CVS
> subdirectory out and in.
>
> I haven't tried bitkeeper yet, but it might not have that problem. (It
> wants to replace CVS)

As far as I know, nobody has ported bitkeeper to Mac OS X or Mac OS X 
Server yet.  There seems to be a chicken-and-egg problem with doing 
this...the source is only available via bitkeeper...

The only other solution I know of is Perforce (http://www.perforce.com). 
They
had a binary for Rhapsody, but last time I checked it core dumped on Mac OS 
X Server 1.2 (worked fine in 1.02...something seems to have changed in the 
update).


From brian at fortnocs.com  Mon Jul  3 20:49:52 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Mon Jul  3 19:49:52 2000
Subject: Date -> NSGregorianDate
Message-ID: <3.0.6.32.20000703195854.0134b3b0@mailhost.fortnocs.com>

I have a Java class that has no WO code at all in it and I need to convert
it's date() member and convert it into an NSGregorianDate object.

Suggesstions?



  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From deninger at blue.weeg.uiowa.edu  Mon Jul  3 21:57:15 2000
From: deninger at blue.weeg.uiowa.edu (Michael Deninger)
Date: Mon Jul  3 20:57:15 2000
Subject: EOModeler Wackiness [Solved]
Message-ID: <v04210102b58710a41082@[10.0.1.26]>

Hi,

I found my problem (with the help of DTS) and wanted to pass along 
what it was (so maybe someone else can learn from my mistake).

Briefly, my display group was fetching only objects with an optional 
relationship. It turns out that if you flatten a relationship between 
entities where the relationship is optional, EO will return only 
those records with a relationship.

Put another way, EO will not fetch and return*null* for a flattened 
relationship when there are no related records.

I did not expect this. Is this a "feature" or something I should have 
expected (if so, what is the reason)?

I was using this flattened relationship to sort my display group. I 
worked around this problem, but wondered what others (with a better 
understanding of WO/EO) thought.


Michael Deninger
The University of Iowa College of Pharmacy
Phone: (319) 335-6513
deninger@blue.weeg.uiowa.edu


From dneumann at apple.com  Tue Jul  4 00:39:29 2000
From: dneumann at apple.com (David Neumann)
Date: Mon Jul  3 23:39:29 2000
Subject: EOKeyBinding warning - regarding capitalized key
Message-ID: <200007040638.XAA04153@scv3.apple.com>

In the Java language and NeXT's ObjC conventions, methods and instance 
variables,  begin with lower case. Constants and class names (another kind
of constant)  begin in uppercase. It makes it easier to just glance at code
and see what's going on. Without these conventions, a line like this by
itself is ambiguous:

Foo.doSomething()

Is Foo a class or is it a variable that happens to be capitalized.

KeyValueCoding is a concept that actually is finding support in that new MS
language and possibly in a future version of the JDK. The idea is to provide
a general purpose way for objects to exchange data with each other. The
protocol goes through various steps to push/pull a value... valueForKey
checks for the presence of accessor methods, a valueForKey method, and
ultimately an ivar.  It prefers to use the method if present. But to use a
method it has to use runtime facilities to check for the presence of the
method. This takes time. If you have a convention for methods used as
accessors for key value coding, you can perform this faster and perhaps more
importantly, you can do it more reliably.

So there are 2 wins: clearer code, and better runtime execution.

BTW every single property you bind to anything in a .wod, and all the dots
in .wod syntax are  examples of key value coding in action. It is NOT just
used by EOs, its used in WOF -- a LOT.  If KVC didn't exist, you couldn't
just plop stuff in a .wod and have to work at runtime. You'd also need gobs
of useless classes that did nothing but invoke accessor methods. Plus the
classes would have to have foreknwoledge of each other at design time to
communicate. With KVC, they don't - which is a pretty big deal if you want
to reuse code frictionlessly.

d


----------
>From: Michael Gersten <michael@getasia.com>
>To: mmalcolm crawford <mmalc@stepwise.com>
>Cc: webobjects@omnigroup.com
>Subject: Re: EOKeyBinding warning - regarding capitalized key
>Date: Mon, Jul 3, 2000, 11:20 AM
>

>> > Ok, what is gained by using this convention?
>> >
>> EOKeyValueCoding works as advertised, as do a number of other bindings (e.g.
>> in WOBuilder).
>
> And why doesn't EOKeyValueCoding work with upper case letters? Do upper
> case letters mean something else (not obviously documented?)
>
> This argument sounds like "EOKeyValueCoding will work better if you
> follow the convention because it won't work at all if you don't.".
>
>> > Keep in mind that previously, every table I've built has used IDFoo for
>> > the keys for table Foo. This has the advantage that all of the keys
>> > (primary, foreign, etc) get placed together. They normally are not class
>> > properties, but every once in a while, ...
>> >
>> I'm not sure why what you call the table is relevant?
>>
>> mmalc.
>
> It's not the table name. IDCustomer begins with an upper case I.
> EOModeler gives a consistency warning on it even though it isn't a class
> property.
>
> And, on rare occasions, that IDblah does need to be a class property (a
> three-way join table, for a M/M relationship involving three tables).
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From carlos.gonzalez at bancoval.es  Tue Jul  4 00:56:21 2000
From: carlos.gonzalez at bancoval.es (Carlos Gonzalez Sanchez)
Date: Mon Jul  3 23:56:21 2000
Subject: WO compiling on HP-UX
References: <CD4FCCD776FDD211986F00A0C9A70947284520@SBNT4>
Message-ID: <39618A3F.391B7254@bancoval.es>

Next thing you have to do is delete the file

/disk5/tempECDemo/ogcommerce-java/ogcommerce.build/objects-optimized/NSFramework_ogcommerce.o

which is giving you problems because it was compiled in the development
platform. Don´t be afraid of removing it because it will be generated again
(this time for HP-UX) after you do a "make".


"Brian P. Marquis" wrote:

> I've made some progress! Added /usr/lib at the end of LPATH and I can now
> get the WO Examples to compile.
>
> I'm now getting:
>
> ld:
> /disk5/tempECDemo/ogcommerce-java/ogcommerce.build/objects-optimized/NSFrame
> work_ogcommerce.o: Not a valid object file (invalid system id)
>
> when I try to compile my framework.
>
> > -----Original Message-----
> > From: Pezzi, Robbyn J CA [SMTP:Robbyn.Pezzi@js.ca.ngb.army.mil]
> > Sent: Monday, July 03, 2000 12:05 PM
> > To:   'Brian P. Marquis'
> > Subject:      RE: WO compiling on HP-UX
> >
> > Brian,
> >
> > Unfortunately, the two systems I had been using are TU at the moment.
> > However, below is something that may help you.  It is from the "HP-UX
> > Post-Installation Steps" in the apple documentation (info-center).  I know
> > I appended the LPATH to include all of the ones they show below in the
> > documentation.
> >
> > Also think you should be able to do a :
> >      find / -name libpdo*
> > And it will tell you the file is located at.  Then you would also know
> > what directory needs to be in the path.
> >
> > Tell me if things still are not going well.
> >
> > robbyn
> >
> > ---------------
> > Setting the LPATH and SHLIB_PATH Environment Variables
> > Set the LPATH environment variable to an appropriate value for your
> > installation, with the following prepended to it (enter the following all
> > on one line):
> >
> > $NEXT_ROOT/Local/Developer/Libraries:$NEXT_ROOT/Developer/Libraries:$NEXT_
> > ROOT/Local/Library/Executables:$NEXT_ROOT/Library/Executables:$NEXT_ROOT/
> > Library/JDK/lib
> >
> > Also set the SHLIB_PATH to the value of LPATH with:
> >
> > setenv SHLIB_PATH "$LPATH"
> > --------------
> >
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From mmalc at stepwise.com  Tue Jul  4 01:38:17 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Tue Jul  4 00:38:17 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <3960BD5C.F90E31F3@getasia.com>
Message-ID: <B5875341.953C%mmalc@stepwise.com>

Michael Gersten wrote:

> And why doesn't EOKeyValueCoding work with upper case letters? Do upper
> case letters mean something else (not obviously documented?)
> 
No, it's so that WO/EOF can consistently do the right thing with instance
variables and accessor methods:
    Object  anObject;
    public Object anObject;
    public Object getAnObject;
    public void setAnObject(Object newAnObject);


> This argument sounds like "EOKeyValueCoding will work better if you
> follow the convention because it won't work at all if you don't.".
> 
Sounds like a good argument to me, cf the later posting from the 4.5 release
notes.

> It's not the table name.
>
I meant "column".

mmalc.


From carlos.gonzalez at bancoval.es  Tue Jul  4 01:48:25 2000
From: carlos.gonzalez at bancoval.es (Carlos Gonzalez Sanchez)
Date: Tue Jul  4 00:48:25 2000
Subject: Deployment system problem (shell script)
References: <008d01bfe555$1a970930$01010101@mirrim>
Message-ID: <39619643.693ED451@bancoval.es>

Would it be possible to have a copy of your script?

Thanks

Richard Lewis-Shell wrote:

> Thanks Michael
>
> That 'polling' solution would work for us.  FYI, '-w' does not work with HP-UX's
> ps - here is a snippet from the 10.20 ps man page:
> "Only a subset of the command line is saved by the kernel; as much of the
> command line will be displayed as is available."
>
> In case anyone is interested in our current, and hopefully final, solution, we
> decided to modify the 'stop' script to kill the child processes that might be
> orphaned after the 'loop' script is killed.  Not quite as encapsulated as it
> could be, but the 'loop' script remains very simple (no background processes, no
> signal trapping), and only a couple more lines were needed in the 'stop' script.
>
> Phew - thanks all for your help,
>
> Richard
>
> > -----Original Message-----
> > From: Michael Gersten [mailto:michael@getasia.com]
> > Sent: Tuesday, 4 July 2000 11:09
> > To: Richard Lewis-Shell
> > Cc: michael@stb.nccom.com; froy@singleentry.com;
> > webobjects@omnigroup.com
> > Subject: Re: Deployment system problem (shell script)
> >
> >
> > > As for background launching/trapping signals, I tried this, without
> > much luck.
> > > The point of the script is to firstly start the app and then
> > restart it when/if
> > > it finishes.  Thus the launch command sits within a while (true) loop.  If I
> > > start it in the background, this will spawn processes like there's
> > no tomorrow,
> > > and bad things will happen.  I tried grabbing the pid of the app once it was
> > > started in the background, then returning it to the foreground
> > (fg), and tried
> > > to use a signal trap to stop the now known child pid, but the
> > signal routine is
> > > not executed until the foreground process completes!
> >
> > Ok, then try something like this:
> >
> > while :
> > do
> >       while [ kill -0 $CHILD ]
> >       do
> >               sleep $DELAY
> >       done
> >
> >       # code to restart the now dead app
> > done
> >
> > Adjust $DELAY as needed -- '2' should work fine.
> >
> > > I'm going round in circles.  Perhaps the only option is to use pid
> > files, or to
> > > search for processes started by the script (ie. ppid = script pid), and kill
> > > them after the script has been killed.  This seems a little more
> > fragile than
> > > necessary - I just thought there might be some cunning way of
> > telling a shell
> > > script to kill its children when it dies...
> >
> > You can, actually. 'kill 0' will kill everything in the process group.
> >
> > Before job control (read: sh, not csh, not bash), every backgrounded
> > process was in the shell's process group.
> >
> > Job control shells start each backgrounded child in a new process group.
> >
> > > Richard
> > >
> > > > -----Original Message-----
> > > > From: Michael Gersten [mailto:michael@getasia.com]
> > > > Sent: Tuesday, 4 July 2000 10:14
> > > > To: froy@singleentry.com
> > > > Cc: Richard Lewis-Shell; webobjects@omnigroup.com
> > > > Subject: Re: Deployment system problem (shell script)
> > > >
> > > >
> > > > You want to use 'trap' in the shell script to catch the kill signal. You
> > > > can then kill the WOApp explicitly.
> > > >
> > > > Most likely, you'll want to start the WOApp in the background, save it
> > > > in a variable, and then use that in your kill statement.
> > > >
> > > > Fabien Roy wrote:
> > > > >
> > > > > Some suggestions:
> > > > >
> > > > > Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> > > > > the bsd ps in "/usr/ucb" and I really understand why :-).
> > > > >
> > > > > In the ObjC launcher  you could write (using NSProcessInfo and
> > > > > getpid())  to a file the process id and the interesting arguments of
> > > > > the process. I would suggest to use the process id concatenated with
> > > > > the name of the process as the file name. Then you will have to
> > > > > remove that file when you kill the process.
> > > > >
> > > > > Hope that helps.
> > > > >
> > > > > Fabien
> > > > >
> > > > > --
> > > > >     |\      _,,,---,,_      Fabien Roy
> > > > >     /,`.-'`'    -.  ;-;;,_  Singleentry.com
> > > > >    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
> > > > >   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> > > > > Tel: (512) 266-6379 ext 1350
> > > > > Fax: (512) 266-6375
> > > > > Mob: (512) 796-9854
> > > > > http://www.singleentry.com
> > > > >
> > > > > _______________________________________________
> > > > > WebObjects mailing list
> > > > > WebObjects@omnigroup.com
> > > > > http://www.omnigroup.com/mailman/listinfo/webobjects
> > > >
> > >
> > > _______________________________________________
> > > WebObjects mailing list
> > > WebObjects@omnigroup.com
> > > http://www.omnigroup.com/mailman/listinfo/webobjects
> >
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From carlos.gonzalez at bancoval.es  Tue Jul  4 01:53:28 2000
From: carlos.gonzalez at bancoval.es (Carlos Gonzalez Sanchez)
Date: Tue Jul  4 00:53:28 2000
Subject: Cannot connect to Sybase
References: <200007032252.RAA11149@mail1.ixlhosting.net>
Message-ID: <3961979D.692902CA@bancoval.es>

--------------1124A609A98BDE78F8D0E052
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

>        Do you have the SYBASE environment variable defined as well?
>    I'm not sure whether SYBASE or SYBASE_HOME is needed.
>
>           Also, of course your database, user, and password must be
>   correct in the connection dictionary.
>

I have the SYBASE environment variable defined.
My connection dictionary resides in a file inside my model:

p002.woa/Resources/p002.eomodeld/index.eomodeld

Should it be somewhere else?

--------------1124A609A98BDE78F8D0E052
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit

<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>

<blockquote TYPE=CITE>
<pre>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Do you have the SYBASE environment variable defined as well?
&nbsp;&nbsp; I'm not sure whether SYBASE or SYBASE_HOME is needed.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Also, of course your database, user, and password must be
&nbsp; correct in the connection dictionary.
</pre>
</blockquote>

<p><br>I have the SYBASE environment variable defined.
<br>My connection dictionary resides in a file inside my model:
<p>p002.woa/Resources/p002.eomodeld/index.eomodeld
<p>Should it be somewhere else?</html>

--------------1124A609A98BDE78F8D0E052--


From martin.lonnar at redmessage.com  Tue Jul  4 02:32:18 2000
From: martin.lonnar at redmessage.com (=?windows-1252?Q?Martin_L=F6nnar?=)
Date: Tue Jul  4 01:32:18 2000
Subject: Upgrade WO license remote
Message-ID: <995DCDD3A4EED311AC8600E018C2B83B02759E@RMXSRV>

Hi,

How do I upgrade/change my WebObjects license key remotely via telnet? Is
there a file to edit?

Mvh/Regards
Martin Lönnar

Red Message - Europe's leading m-commerce provider
__________________________________________________
Martin Lönnar
Application developer
Red Message AB
Stena Center 1C
412 92 Gothenburg

Mobile: +46 (0)706 76 25 51
Fax: +46 (0)31 772 80 91
e-mail: martin.lonnar@redmessage.com

http://www.redmessage.com/

Visiting address:
Holtermansgatan 1, Gothenburg
__________________________________________________

From burghams at penzance.com.au  Tue Jul  4 03:26:22 2000
From: burghams at penzance.com.au (Simon Burgham)
Date: Tue Jul  4 02:26:22 2000
Subject: Instance ID's of -1 from wotaskd
Message-ID: <8A9DF5D1E033D41195F40050DA5B5450049521@DOMAIN_SERVER>

I've been trying without much success to deploy my application with 2
instances, on NT IIS WO4.5.
I have the adaptor fixes (thank you Pierce T.Wetter III!) and WO4.5 patch 1.


The problem seems to be that wotaskd is returning the XMLConfigDoc with
instance ID's of -1. 

I create 2 instances using Monitor, everything seems to be ok, it says I've
created instance-6 and instance-7 when I look at the config screen. I can
start both instances from Monitor, but Monitor doesn't know anything about
them once they've started.

The results from http://asap1:1085 are as follows :

XMLConfigDoc component: 
<?xml version="1.0" encoding="ASCII"?>

<adaptor transport="winsock" scheduler="roundrobin">
        
    <application name="MyApp">
        <instance port="2002" host="asap1" id="-1"/>
    </application>
    <application name="Monitor">
        <instance port="1031" host="asap1" id="-1"/>
    </application>
    
</adaptor>

Also, when I start 2 instances, the port no switches between each instance,
going from 2002 to 2003 fairly randomly when I keep refreshing.

I hope I am just doing something really stupid, because I can't believe that
a vanilla deployment could be this hard !

If anyone could help it would great ! 
Thanks
Simon Burgham



The results from XYZZY are as follows :

Server Adaptor:

Server = CGI
WebObjects Server Adaptor version = 4.5
WebObjects Configuration URI(s) =
localhost:1085/WebObjects/wotaskd.woa/wa/woconfig:1085 since(Tue, 04 Jul
2000 10:14:38 GMT) next(10), 
Load balancing algorithms = (random, roundrobin, loadaverage)
Transports = (winsock, socket, nbsocket)


Available applications:

----------------------------------------------------------------------------
----
 

  LB redir cpSize cto/sto/rto S/R Size dead Interval Retries URL Version 
MyApp random (null) 32 120/120/120 65535/65535 30 0 4 
inst host port transport Send Size Recv Size URL Version Load 
-1 asap1 2002 nbsocket 65535 65535 4 0 
inst host port transport new sessions? removed? dead? active reqs served
poolsz poolct/ max/ reused cto/ sto/ rto 
-1 asap1 2002 nbsocket 0 0 0 0 0 32 0/0/0 120/120/120 

----------------------------------------------------------------------------
----

  LB redir cpSize cto/sto/rto S/R Size dead Interval Retries URL Version 
Monitor random (null) 32 120/120/120 65535/65535 30 0 4 
inst host port transport Send Size Recv Size URL Version Load 
-1 asap1 1031 nbsocket 65535 65535 4 0 
inst host port transport new sessions? removed? dead? active reqs served
poolsz poolct/ max/ reused cto/ sto/ rto 
-1 asap1 1031 nbsocket 0 0 0 0 0 32 0/0/0 120/120/120 

Request headers:
CLASSPATH:
d:\apple\Library\Java\xml4j.jar;d:\apple\Library\JDK\lib\swingall.jar
COMPUTERNAME: ASAP1
ComSpec: C:\WINNT\system32\cmd.exe
content-length: 0
x-webobjects-gateway-interface: CGI/1.1
accept: */*
accept-language: en-au
HTTP_CONNECTION: Keep-Alive
HTTP_HOST: asap1
user-agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT)
HTTPS: off
INCLUDE: C:\Program Files\Mts\Include
INSTANCE_ID: 3
LIB: C:\Program Files\Mts\Lib
LOCAL_ADDR: 192.168.1.129
NEXT_ROOT: d:/apple
NTReskit: D:\NTReskit
NUMBER_OF_PROCESSORS: 1
Os2LibPath: C:\WINNT\system32\os2\dll;
OS: Windows_NT
Path:
d:\apple\Developer\Executables\Utilities;d:\apple\Local\Library\Executables;
d:\apple\Library\JDK\bin;d:\apple\Library\Executables;C:\WINNT\system32;C:\W
INNT;C:\Program Files\Mts;D:\NTReskit
PATH_INFO: /xyzzy
PATH_TRANSLATED: D:\Inetpub\wwwroot\xyzzy
PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.JS
PROCESSOR_ARCHITECTURE: x86
PROCESSOR_IDENTIFIER: x86 Family 6 Model 8 Stepping 1, GenuineIntel
PROCESSOR_LEVEL: 6
PROCESSOR_REVISION: 0801
x-webobjects-remote-addr: 192.168.1.161
x-webobjects-remote-host: 192.168.1.161
x-webobjects-request-method: GET
SCRIPT_NAME: /cgi-bin/WebObjects.exe
x-webobjects-server-name: asap1
x-webobjects-server-port: 80
SERVER_PORT_SECURE: 0
SERVER_PROTOCOL: HTTP/1.0
x-webobjects-server-software: Microsoft-IIS/4.0
SystemDrive: C:
SystemRoot: C:\WINNT
USERPROFILE: C:\WINNT\Profiles\Default User
windir: C:\WINNT
WO_CONFIG_URL: http://localhost:1085 10


From sebastien.b at cyberion.fr  Tue Jul  4 03:57:05 2000
From: sebastien.b at cyberion.fr (Sebastien B.)
Date: Tue Jul  4 02:57:05 2000
Subject: Urgent ! Application phantom ...
Message-ID: <006a01bfe59e$55bbaea0$3414a8c0@sebastien.195.101.113.135>

Hello everybody,

I use WebObjects 4.5 (Patch 1) on Win NT 4 Pack 3.

Description of my problem :

I set in Monitor 1 instance of my program. Only 1 instance.
I start it. In see my program at ON after 6 secondes in the Monitor.
My program work fine.

But In a random way, the monitor start a new instance of my program.
So, after 2 days I have 10 instances in the task manager and I don't know
why !

Is somebody have a answer ?

Seb.
French programmer.


From james at traffic.co.uk  Tue Jul  4 05:15:17 2000
From: james at traffic.co.uk (James Wilkins)
Date: Tue Jul  4 04:15:17 2000
Subject: Upgrade WO license remote
References: <995DCDD3A4EED311AC8600E018C2B83B02759E@RMXSRV>
Message-ID: <004001bfe5a9$06c15330$0200a8c0@JAMESLAP>

Search under the Apple tree for a file called license.key , yup its just a
plain text file containing the license information.

(I think its something like
Apple\Local\Library\Frameworks\WebObjects\Resources\License.key)


James

----- Original Message -----
From: "Martin Lönnar" <martin.lonnar@redmessage.com>
To: "'webobjects list (OmniGroup)'" <webobjects@omnigroup.com>
Sent: Tuesday, July 04, 2000 9:35 AM
Subject: Upgrade WO license remote


> Hi,
>
> How do I upgrade/change my WebObjects license key remotely via telnet? Is
> there a file to edit?
>
> Mvh/Regards
> Martin Lönnar
>
> Red Message - Europe's leading m-commerce provider
> __________________________________________________
> Martin Lönnar
> Application developer
> Red Message AB
> Stena Center 1C
> 412 92 Gothenburg
>
> Mobile: +46 (0)706 76 25 51
> Fax: +46 (0)31 772 80 91
> e-mail: martin.lonnar@redmessage.com
>
> http://www.redmessage.com/
>
> Visiting address:
> Holtermansgatan 1, Gothenburg
> __________________________________________________
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From martin.lonnar at redmessage.com  Tue Jul  4 06:00:57 2000
From: martin.lonnar at redmessage.com (=?windows-1252?Q?Martin_L=F6nnar?=)
Date: Tue Jul  4 05:00:57 2000
Subject: SOLVED: Upgrade WO license remote
Message-ID: <995DCDD3A4EED311AC8600E018C2B83B0275A5@RMXSRV>

Hi,

Thank you everyone who answered my (obviously) simple question.

Solution:
Enter the new license key in the following file...

...on NT:
\Apple\Library\Frameworks\WebObjects.framework\Resources\License.key using
Notepad or whatever.

...on MacOS X:
/System/Library/Frameworks/WebObjects.framework/Resources/License.key using
vi or whatever or...
    % cd /System/Library/Frameworks/WebObjects.framework/Resources
    % cp License.key License.key.COPY
    % echo "theKey" > License.key

No need to restart.

> Mvh/Regards
> Martin Lönnar
> 
> Red Message - Europe's leading m-commerce provider
> __________________________________________________
> Martin Lönnar
> Application developer
> Red Message AB
> Stena Center 1C
> 412 92 Gothenburg
> 
> Mobile: +46 (0)706 76 25 51
> Fax: +46 (0)31 772 80 91
> e-mail: martin.lonnar@redmessage.com
> 
> http://www.redmessage.com/
> 
> Visiting address:
> Holtermansgatan 1, Gothenburg
> __________________________________________________
> 

From paulrs at lgs-systems.com  Tue Jul  4 06:39:21 2000
From: paulrs at lgs-systems.com (Paul R. Summermatter)
Date: Tue Jul  4 05:39:21 2000
Subject: Date -> NSGregorianDate
Message-ID: <51325BD9D61DD31186A50040F6340DB8068289@smtp>

Brian,

	A com.apple.client.foundation.NSGregorianDate or a
com.apple.yellow.foundation.NSGregorianDate?  If the latter, you ought to be
able to do something like:

NSGregorianDate date = new NSGregorianDate(javaDate.getYear(),
javaDate.getMonth(), javaDate.getDay(), javaDate.getMinute(),
javaDate.getSecond(), new NSTimeZone(javaDate.getTimezoneOffset()));

(NB. I have not tested this code and there may be differences in
java.util.Date's returning values in seconds/milliseconds and
NSGregorianDate expecting arguments in seconds/milliseconds)

	If it's the former, NSGregorianDate is just a wrapper around a
java.util.Date, so conversion is trivial.

Regards,
Paul

[ -----Original Message-----
[ From: Brian Wotring [mailto:brian@fortnocs.com]
[ Sent: Monday, July 03, 2000 10:59 PM
[ To: webobjects@omnigroup.com
[ Subject: Date -> NSGregorianDate
[ 
[ 
[ 
[ I have a Java class that has no WO code at all in it and I 
[ need to convert
[ it's date() member and convert it into an NSGregorianDate object.
[ 
[ Suggesstions?
[ 
[ 
[ 
[   |  Brian Wotring  ( brian@fortnocs.com )
[   |  Fort Nocs, Inc.
[   |  PGP Key ID: 0x9674763D
[ _______________________________________________
[ WebObjects mailing list
[ WebObjects@omnigroup.com
[ http://www.omnigroup.com/mailman/listinfo/webobjects
[ 

From Alexander.Lamb at dim.hcuge.ch  Tue Jul  4 07:42:58 2000
From: Alexander.Lamb at dim.hcuge.ch (Alexander Lamb)
Date: Tue Jul  4 06:42:58 2000
Subject: Automatic reconnection to the database... some additional info!
Message-ID: <00eb01bfe5bd$54c9bc70$a81ec381@CIHDM50>

Hello list,

We were having some problems with the automatic reconnection to an Oracle
database after the database was either shut down or some problems
disconnected the client.

Well, we implemented the code Patrice suggested a few days ago. It is never
called, although the application reconnects correctly after the database
connection has been explicitly killed by our DBA (therefore our problem must
be elsewhere but we shall still leave the code in if that situation should
occur)...
However, there is one situation where the database is not reconnecting
automatically and generating an exception (even with Patrice's code), it is
when we call a stored procedure immediately after the deconnection (the
situation we actually had probably quite often since the crashing app not
reconnecting is a log server doing inserts in the database through a stored
procedure).

Here is the exception we get:

Jul 04 15:27:53 LogsNavigator001[560]  >>> Begin Transaction
Jul 04 15:27:53 LogsNavigator001[560]  === Begin Internal Transaction
Jul 04 15:27:53 LogsNavigator001[560]  *** [<OracleChannel: 0x535db70>
evaluateExpression: <OracleSQLExpression: "begin  ArchiveCurrentLogProc
 P_TIMESTAMP => :timeStamp ); end;" withBindings:{timeStamp = 2000-07-03
15:27:53 +0200; }>] requiresParse:YES
Jul 04 15:27:53 LogsNavigator001[560]  === Rollback Internal Transaction
Jul 04 15:27:53 LogsNavigator001[560] <WOApplication 'LogsNavigator001'>:
NSInternalInconsistencyException exception occurred while handling request:
NSInternalInconsistencyException: Exception occured while evaluating
'archiveLogs', on target:<FirstPage 0x2787e10>:
rollbackTransaction -- OracleContext 0x27417b8: Unable to rollback
transaction
Stack Trace:
Not available.

Any idea how to also trap this one?

Thanks a lot,

Alexander

________________________________
Alexander Lamb
Groupe Serveurs Applicatifs
Division d'Informatique Médicale
Hôpitaux Universitaires de Genève
alamb@dim.hcuge.ch
+41-22-372-48-46


From mark at synergycentres.org  Tue Jul  4 07:48:02 2000
From: mark at synergycentres.org (Mark Gowdy)
Date: Tue Jul  4 06:48:02 2000
Subject: WO4.0.1 -> 4.5 Deployment
Message-ID: <3961EB0E.D579D53A@synergycentres.org>

Mmmm..
I'm afraid this is a 'two birds with one stone' email

First of all :
I transfered an old wo4.0.1 app onto a new installation of 4.5
(OS-X 1.0.2 - Frontbase)  --  (excellent database btw)

I am now getting the error message

"Attempted to begin a transaction within a transaction."

when I try to saveChanges after inserting an object.

Secondly :
I could start the app by clicking on the myApp in the myApp.woa
directory
But when I try to use monitor, myApp only starts for a brief moment and
then dies..
I can't seem to find where it sends it's output so I can see what is
happening...
The docs say that errors appear in the WebServers error log, but there
is no sign of any entries there !

In 4.0.1 the monitor would display all it's output in a window or I
would redirect the output to a log file,
what does 4.5 monitor do with it ?


Many thanks again....

Mark
--

/=========================\
|        Mark Gowdy
|        Software Manager
|        Synergy Centres Ltd
|        Tel: 028 90 288844
|        Mobile : 07808 400941
|        ICQ : 31587517
\=========================/



From mgoodwin at mjgc.net  Tue Jul  4 07:50:36 2000
From: mgoodwin at mjgc.net (Michael Goodwin)
Date: Tue Jul  4 06:50:36 2000
Subject: Instantiating WOComponent with "new" vs. "pageWithName"
Message-ID: <200007041350.GAA07772@scyther.omnigroup.com>

Earlier in the year there was some discussion of the fact that 
instantiating a WOComponent using "new" did not generate the same results 
as using "pageWithName".  I didn't see any fixes in the list archive.

I've been bumping up against this in a couple of cases because I'm trying 
to do some parameterized initialization and need to use "new".  Comparing 
2 objects that are supposed to be the same shows that using "new", 
baseURL, name and path show the component where the instantiation was 
done instead of the actual component, and there is no session.

Does anyone know why this happens, and is there a clean way to "fix" it?

One thing that's very strange, is that in a test where I created a temp 
page with "pageWithName" and then created the real page with "new" (to 
compare them), the two were identical!  It didn't work if the real page 
was instantiated first, though.  That may be an effective workaround, 
although there may be some side effects....

Any thoughts or other findings would be greatly appreciated.

Happy 4th of July!

Michael

From nils at sisyfos.com  Tue Jul  4 08:02:02 2000
From: nils at sisyfos.com (Nils =?iso-8859-1?Q?=C4ngquist?=)
Date: Tue Jul  4 07:02:02 2000
Subject: Initialising PageWithName Objects
Message-ID: <p04320404b5878f40a491@[10.0.1.2]>

If I create an object with for example:

SearchResult myNewPage = (SearchResult)pageWithName("SearchResult");

How can I put initialisation code for that object i a similar way as 
one normally can when using a constructor?

TIA,

- Nils
-- 



^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Nils Ängquist                       Sisyfos Produktion
Gibraltargatan 80 - 1114            http://www.sisyfos.com/
SE-412 79 Göteborg
nils@sisyfos.com
+46 - 31 - 778 18 08
+46 - 70 - 318 48 08 (cellphone)

From Dave at Yost.com  Tue Jul  4 08:39:15 2000
From: Dave at Yost.com (Dave Yost)
Date: Tue Jul  4 07:39:15 2000
Subject: Instantiating WOComponent with "new" vs. "pageWithName"
In-Reply-To: <200007041350.GAA07772@scyther.omnigroup.com>
References: <200007041350.GAA07772@scyther.omnigroup.com>
Message-ID: <p04320402b587a5844927@[192.168.1.2]>

On a related note.  One of my pages has a property that is a WOComponent, in which there is a property containing an xml string.  In debug mode, I want to be able to click on a link to a page that shows the xml (IE5 on Windows shows this xml nicely).

The straightforward thing to do is to bind the xml component to the link so the xml component is switched to when you click on the link.  Unfortunately I can't find a binding that will do this, as I can find no documentation on WOHyperlink.  Not here
http://developer.apple.com/techpubs/webobjects/System/Library/Frameworks/WebObjects.framework/Java/WebObjectsTOC.html
Not in the little doc book icon in the WOBuilder inspector.

I supposed I have to find that xml component object by name then set it to essentially be a copy of the existing one?  This is gross.

Open source for the runtime!  Or failing that, 100% perfect documentation.

Dave

From ghopson at solant.com  Tue Jul  4 09:22:08 2000
From: ghopson at solant.com (Geoff Hopson)
Date: Tue Jul  4 08:22:08 2000
Subject: wml through monitor?
References: <39613E24.746E8CC9@medicalhost.com>
Message-ID: <3962022A.3AD3B533@solant.com>

Whilst not having written a Monitor equivalent, we have put a WML/WAP
interface on our online billing application. We used the free frameworks
from Netmatic (www.netmatic.com). Worked really well, both on cellphones
and on the Palm VII.

No help on your Monitor question at all - sorry. You might want to run
'strings' on Monitor & wotaskd to see if that gives you any clues (eg
direct actions to call). I wish Apple would release (or open source) the
sourcecode for Monitor and wotaskd...

Geoff

"Robert A. Decker" wrote:
> 
> Has anyone written a Monitor equivalent that supports Wireless Markup
> Language for access through a device like a cell phone?
> 
> thanks,
> rob
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From burke at uhnres.utoronto.ca  Tue Jul  4 09:35:24 2000
From: burke at uhnres.utoronto.ca (Michael Burke)
Date: Tue Jul  4 08:35:24 2000
Subject: Initialising PageWithName Objects
References: <p04320404b5878f40a491@[10.0.1.2]>
Message-ID: <39620742.B2875EC1@oci.utoronto.ca>

Nils,

    You could write something like:

            SearchResult myNewPage =
(SearchResult)pageWithName("SearchResult");
            myNewPage.setVariableA(valueA);
            myNewPage.setArrayB(arrayB);
            myNewPage.setStatusVariableCEnabled(true);
            ...

where you have designed API in SearchResult to handle initialization.

Cheers,
Michael Burke

Nils Ängquist wrote:

> If I create an object with for example:
>
> SearchResult myNewPage = (SearchResult)pageWithName("SearchResult");
>
> How can I put initialisation code for that object i a similar way as
> one normally can when using a constructor?
>
> TIA,
>
> - Nils
> --
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> Nils Ängquist                       Sisyfos Produktion
> Gibraltargatan 80 - 1114            http://www.sisyfos.com/
> SE-412 79 Göteborg
> nils@sisyfos.com
> +46 - 31 - 778 18 08
> +46 - 70 - 318 48 08 (cellphone)
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From pierce at twinforces.com  Tue Jul  4 10:28:29 2000
From: pierce at twinforces.com (Pierce T. Wetter III)
Date: Tue Jul  4 09:28:29 2000
Subject: WO4.0.1 -> 4.5 Deployment
In-Reply-To: <3961EB0E.D579D53A@synergycentres.org>
Message-ID: <B5875EAA.5DF8%pierce@twinforces.com>

on 7/4/00 6:47 AM, Mark Gowdy at mark@synergycentres.org wrote:

> Mmmm..
> I'm afraid this is a 'two birds with one stone' email
> 
> First of all :
> I transfered an old wo4.0.1 app onto a new installation of 4.5
> (OS-X 1.0.2 - Frontbase)  --  (excellent database btw)
> 
> I am now getting the error message
> 
> "Attempted to begin a transaction within a transaction."
> 
> when I try to saveChanges after inserting an object.

  Update your frontbase EOF adaptor.

 Pierce


From MaxMuller at mac.com  Tue Jul  4 10:53:03 2000
From: MaxMuller at mac.com (Max Muller)
Date: Tue Jul  4 09:53:03 2000
Subject: OT: BlueBox on a PB 400
Message-ID: <B5876428.36%MaxMuller@mac.com>

Hello,
    Sorry for the off topic post.  Has anyone gotten the BlueBox to run on a
Lombard 400 PowerBook?  I have OSXS on it, but when I try to run the BlueBox
it chimes and then hangs with a gray screen.  Anyone else run into this?
Possible work arounds?  Thanks in advance.

Regards,
    Max
  


From yplessis at paloalto.fr  Tue Jul  4 11:06:23 2000
From: yplessis at paloalto.fr (Yann Plessis)
Date: Tue Jul  4 10:06:23 2000
Subject: Context error ...
Message-ID: <014c01bfe5da$0b8db210$1300a8c0@yann>

C'est un message de format MIME en plusieurs parties.

------=_NextPart_000_0149_01BFE5EA.CED4BE20
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

After refresh my navigator (by pressing my F5 key), if i make a saving =
with this :

session().defaultEditingContext().insertObject(newOffer);
session().defaultEditingContext().saveChanges();

my app return this error :=20

Exception : NSInternalInconsistencyException: _globalIDForObject:: =
EODatabaseContext 0x25866d8 unable to obtain global id for Category =
object 0x25cf640 from EOEditingContext 0x25ea188

Do you know this problem ?

------=_NextPart_000_0149_01BFE5EA.CED4BE20
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2920.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>After refresh my navigator (by pressing =
my F5 key),=20
if i make a saving with this :</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial=20
size=3D2>session().defaultEditingContext().insertObject(newOffer);</FONT>=
</DIV>
<DIV><FONT face=3DArial=20
size=3D2>session().defaultEditingContext().saveChanges();</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>my app&nbsp;return this error : =
</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Exception : =
NSInternalInconsistencyException:=20
_globalIDForObject:: EODatabaseContext 0x25866d8 unable to obtain global =
id for=20
Category object 0x25cf640 from EOEditingContext =
0x25ea188<BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Do you know this problem=20
?</DIV></FONT></BODY></HTML>

------=_NextPart_000_0149_01BFE5EA.CED4BE20--


From Andrew.Hainault at capgemini.co.uk  Tue Jul  4 11:52:00 2000
From: Andrew.Hainault at capgemini.co.uk (Hainault, Andrew J)
Date: Tue Jul  4 10:52:00 2000
Subject: Curly quotes becoming underscores
Message-ID: <C94160ACF4CFD2119FCF0008C75D14A401D47F06@exsav01.capgemini.co.uk>

Hi,

I'm having a strange problem with text containing curly single quotes or
curly double quotes
(Unicode characters 2018, 2019, 201C and 201D): the quotes are changed into
underscores when
displayed on a webpage, but neutral quotes (ie " or ' ) appear correctly.

The text is stored in an Access database; if I browse the database in EO
Modeler all the quotes
appear normally. Equally if I write to the Launch window using
System.out.println(theText), again
everything's fine. Furthermore, a StringCharacterIterator that checks for
the above-mentioned Unicode
characters within the text does indeed find them....

In WebObjects builder the text is bound to a WOString. I tried binding to a
WOTextField to see if that
made any difference but got the same result.

Text for an article is written in Word (PC or Mac) and then pasted into an
HTML text field and written
to the Access database using asp. I'm developing on WO 4.5, NT, IIS and
using IE 5 for both Mac
and PC. 

Any help would be much appreciated!

Thanks,
Andrew



-------------------------------------------------
Andrew Hainault

Cap Gemini UK
Corporate Communications

External: +44 (0)870 904 6446
Internal: 700 6446
Voicemail: 777 3242
-------------------------------------------------


From daniel.bleisteiner at metaobject.de  Tue Jul  4 12:35:39 2000
From: daniel.bleisteiner at metaobject.de (Daniel Bleisteiner)
Date: Tue Jul  4 11:35:39 2000
Subject: Two Apps - one Database -> Syncronization?
Message-ID: <NCBBKDLPPKBGJNNFAGFFMELHCEAA.daniel.bleisteiner@metaobject.de>

Hi,

i just have two different applications running the same database - a
storefront and the backoffice of a shop. Is it possible to tell the
storefront to refetch all changed objects from the database on
session-start?

At this point we need to restart the storefront everytime the backoffice
changed objects.

Daniel Bleisteiner, MetaObject GmbH
-
Oranienburger Strasse 69, 10117 Berlin
Tel: +49-30-285381-10, Fax: +49-30-285381-99


From ghopson at solant.com  Tue Jul  4 12:42:07 2000
From: ghopson at solant.com (Geoff Hopson)
Date: Tue Jul  4 11:42:07 2000
Subject: Two Apps - one Database -> Syncronization?
References: <NCBBKDLPPKBGJNNFAGFFMELHCEAA.daniel.bleisteiner@metaobject.de>
Message-ID: <39623116.89775AC7@solant.com>

The following method on EOFetchSpecification works well for us in the
same situation: 

- (void)setRefreshesRefetchedObjects:(BOOL)refreshesRefetchedObjects;

Set it to YES, and the fetch spec will ignore the snapshot and fetch
your objects directly from the database.

Hope this helps,
Geoff

Daniel Bleisteiner wrote:
> 
> Hi,
> 
> i just have two different applications running the same database - a
> storefront and the backoffice of a shop. Is it possible to tell the
> storefront to refetch all changed objects from the database on
> session-start?
> 
> At this point we need to restart the storefront everytime the backoffice
> changed objects.
> 
> Daniel Bleisteiner, MetaObject GmbH
> -
> Oranienburger Strasse 69, 10117 Berlin
> Tel: +49-30-285381-10, Fax: +49-30-285381-99
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From paulrs at lgs-systems.com  Tue Jul  4 13:39:12 2000
From: paulrs at lgs-systems.com (Paul R. Summermatter)
Date: Tue Jul  4 12:39:12 2000
Subject: Two Apps - one Database -> Syncronization?
Message-ID: <51325BD9D61DD31186A50040F6340DB806828D@smtp>

Daniel et al,

	<soapbox>

	This is a major issue that needs addressing by Apple.  Many of us
who have dealt with large projects or projects which require up to the
second data synchronization have endeavored to build various flavors of
distributed notification servers to deal with this problem (I've done this
twice now, once in objective-c and once in java).  While I have tremendous
respect for Eric Noyeau and I have yet to read his latest treatise on this
subject, I respectfully diagree with him on the subject of distributed
notification, and I truly believe that some form of distributed notification
is the appropriate solution for this problem.  That is, everytime an object
is inserted/updated/deleted in one app instance, all other interested app
instances are immediately notified of this modification in the object graph.
Many web app server vendors offer this as a feature, and I think WOF would
greatly benefit from some sort of real time synchronization implementation.
Further, I think the synchornization mechanism should be opensourced so that
we may all contribute to its feature set.

	</soapbox>

Regards,
Paul

[ -----Original Message-----
[ From: Daniel Bleisteiner [mailto:daniel.bleisteiner@metaobject.de]
[ Sent: Tuesday, July 04, 2000 2:37 PM
[ To: WebObjects
[ Subject: Two Apps - one Database -> Syncronization?
[ 
[ 
[ Hi,
[ 
[ i just have two different applications running the same database - a
[ storefront and the backoffice of a shop. Is it possible to tell the
[ storefront to refetch all changed objects from the database on
[ session-start?
[ 
[ At this point we need to restart the storefront everytime the 
[ backoffice
[ changed objects.
[ 
[ Daniel Bleisteiner, MetaObject GmbH
[ -
[ Oranienburger Strasse 69, 10117 Berlin
[ Tel: +49-30-285381-10, Fax: +49-30-285381-99
[ 
[ _______________________________________________
[ WebObjects mailing list
[ WebObjects@omnigroup.com
[ http://www.omnigroup.com/mailman/listinfo/webobjects
[ 

From bigdog at bulldogbeach.com  Tue Jul  4 14:04:52 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Tue Jul  4 13:04:52 2000
Subject: Two Apps - one Database -> Syncronization?
In-Reply-To: <51325BD9D61DD31186A50040F6340DB806828D@smtp>
Message-ID: <B5879138.DD0F%bigdog@bulldogbeach.com>

on 7/4/00 12:43 PM, Paul R. Summermatter at paulrs@lgs-systems.com wrote:

> This is a major issue that needs addressing by Apple.  Many of us
> who have dealt with large projects or projects which require up to the
> second data synchronization have endeavored to build various flavors of
> distributed notification servers to deal with this problem (I've done this
> twice now, once in objective-c and once in java).  While I have tremendous
> respect for Eric Noyeau and I have yet to read his latest treatise on this
> subject, I respectfully diagree with him on the subject of distributed
> notification, and I truly believe that some form of distributed notification
> is the appropriate solution for this problem.  That is, everytime an object
> is inserted/updated/deleted in one app instance, all other interested app
> instances are immediately notified of this modification in the object graph.
> Many web app server vendors offer this as a feature, and I think WOF would
> greatly benefit from some sort of real time synchronization implementation.
> Further, I think the synchornization mechanism should be opensourced so that
> we may all contribute to its feature set.


Guess I'm feeling a little dense today (see signature :-), but doesn't David
Neumann's ChangeNotification framework do the job?

I've just added it recently to a current project, and it seems to work OK,
and I've been able to monkey with the source to get it to behave the way I
want. (In my case, using a list of EntitiesToSynch rather than a list of
EntitiesNotToSynch.)

My main feature request for it would be that it support automagic discovery
of other application instances (probably by reading Monitor's config files)
rather than direct configuration in a plist. Or is that what you're
referring to?

PS: The ChangeNotification framework lives at
<http://wodeveloper.com/sourcecode/cn_readme.html>,
but I found it through SoftTrak <http://softrak.stepwise.com/>

-- 
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
There's always an excuse, and it usually involves coffee.


From paulrs at lgs-systems.com  Tue Jul  4 14:20:46 2000
From: paulrs at lgs-systems.com (Paul R. Summermatter)
Date: Tue Jul  4 13:20:46 2000
Subject: Two Apps - one Database -> Syncronization?
Message-ID: <51325BD9D61DD31186A50040F6340DB806828E@smtp>

Gary,

	While I was very happy to see Dave be so generous as to offer his
time to provide a possible solution to the problem, I suspect even he would
admit his solution is not perfect.  In particular, unless something has
changed, the code used direct actions to distribute notifications.  There is
probably a significant amount of unecessary overhead associated with this
type of communication mechanism.  Further, what if you have a tool running
that has nothing to do with WOF and cannot handle direct actions, but needs
to be notified of changes.  Also, I do not recall any error checking (ie,
what happens if one of the other app instances does not get a notification
because of a communication failure).  For these and other reasons, I think
Apple needs to put some more effort into addressing this issue.

Regards,
Paul

[ -----Original Message-----
[ From: Gary Teter [mailto:bigdog@bulldogbeach.com]
[ Sent: Tuesday, July 04, 2000 4:04 PM
[ To: 'webobjects@omnigroup.com'
[ Cc: Paul R. Summermatter; Daniel Bleisteiner
[ Subject: Re: Two Apps - one Database -> Syncronization?
[ 
[ 
[ on 7/4/00 12:43 PM, Paul R. Summermatter at 
[ paulrs@lgs-systems.com wrote:
[ 
[ > This is a major issue that needs addressing by Apple.  Many of us
[ > who have dealt with large projects or projects which 
[ require up to the
[ > second data synchronization have endeavored to build 
[ various flavors of
[ > distributed notification servers to deal with this problem 
[ (I've done this
[ > twice now, once in objective-c and once in java).  While I 
[ have tremendous
[ > respect for Eric Noyeau and I have yet to read his latest 
[ treatise on this
[ > subject, I respectfully diagree with him on the subject of 
[ distributed
[ > notification, and I truly believe that some form of 
[ distributed notification
[ > is the appropriate solution for this problem.  That is, 
[ everytime an object
[ > is inserted/updated/deleted in one app instance, all other 
[ interested app
[ > instances are immediately notified of this modification in 
[ the object graph.
[ > Many web app server vendors offer this as a feature, and I 
[ think WOF would
[ > greatly benefit from some sort of real time synchronization 
[ implementation.
[ > Further, I think the synchornization mechanism should be 
[ opensourced so that
[ > we may all contribute to its feature set.
[ 
[ 
[ Guess I'm feeling a little dense today (see signature :-), 
[ but doesn't David
[ Neumann's ChangeNotification framework do the job?
[ 
[ I've just added it recently to a current project, and it 
[ seems to work OK,
[ and I've been able to monkey with the source to get it to 
[ behave the way I
[ want. (In my case, using a list of EntitiesToSynch rather 
[ than a list of
[ EntitiesNotToSynch.)
[ 
[ My main feature request for it would be that it support 
[ automagic discovery
[ of other application instances (probably by reading Monitor's 
[ config files)
[ rather than direct configuration in a plist. Or is that what you're
[ referring to?
[ 
[ PS: The ChangeNotification framework lives at
[ <http://wodeveloper.com/sourcecode/cn_readme.html>,
[ but I found it through SoftTrak <http://softrak.stepwise.com/>
[ 
[ -- 
[ Gary Teter, Big Dog
[ Bulldog Beach Interactive http://www.bulldogbeach.com
[ There's always an excuse, and it usually involves coffee.
[ 
[ _______________________________________________
[ WebObjects mailing list
[ WebObjects@omnigroup.com
[ http://www.omnigroup.com/mailman/listinfo/webobjects
[ 

From bigdog at bulldogbeach.com  Tue Jul  4 14:31:39 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Tue Jul  4 13:31:39 2000
Subject: Two Apps - one Database -> Syncronization?
In-Reply-To: <51325BD9D61DD31186A50040F6340DB806828E@smtp>
Message-ID: <B587978F.DD15%bigdog@bulldogbeach.com>

on 7/4/00 1:25 PM, Paul R. Summermatter at paulrs@lgs-systems.com wrote:

> While I was very happy to see Dave be so generous as to offer his
> time to provide a possible solution to the problem, I suspect even he would
> admit his solution is not perfect.  In particular, unless something has
> changed, the code used direct actions to distribute notifications.  There is
> probably a significant amount of unecessary overhead associated with this
> type of communication mechanism.  Further, what if you have a tool running
> that has nothing to do with WOF and cannot handle direct actions, but needs
> to be notified of changes.  Also, I do not recall any error checking (ie,
> what happens if one of the other app instances does not get a notification
> because of a communication failure).  For these and other reasons, I think
> Apple needs to put some more effort into addressing this issue.

Oh, I see. Yes, those are still issues with the current ChangeNotification
framework.

I suppose the error checking problem could be solved by having the notifier
thread wait for a response that says "yeah, I got it."

What would you suggest for how to notify a non-WOF tool? I imagine that
whatever technique is used there might bypass the overhead of direct
actions. My tendency is to use something like XML-RPC, which would carry
perhaps a similar amount of baggage.

I assume that you're talking at least about notifying EOF-based apps, and
not arbitrary applications.... what do people do in those circumstances?

-- 
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
"Fun will now commence." -- Seven of Nine


From richard at csarc.otago.ac.nz  Tue Jul  4 15:59:07 2000
From: richard at csarc.otago.ac.nz (Richard Lewis-Shell)
Date: Tue Jul  4 14:59:07 2000
Subject: Deployment system problem (shell script)
In-Reply-To: <39619643.693ED451@bancoval.es>
Message-ID: <000301bfe602$dc4e8640$01010101@mirrim>

We are actually using 3 scripts - one to start all the necessary apps/instances,
one to keep each instance running (the 'loop' script), and one to stop an app's
instances.  Here is the impt part of the 'stop' script (sorry, can't give them
all out) - it looks for the 'loop' script, and its child processes and kills
them.  The 'loop' script can probably be similar to that posted previously.
This works for us on HP-UX 10.20 with WO4.

Note: this assumes the instances were each started with the command 'woloop
MyAppName other args here', and to stop that app, you'd use 'wostop MyAppName'.

'stop' script (wostop):
#!/bin/sh
# find the pid of the woloop scripts running this app
pid=`ps -ef | grep "woloop $1" | grep -v grep | awk '{ print $2 }'`

# find the child pids for the woloop scripts (ie the apps themselves)
cpid=`ps -ef | grep " $pid " | grep -v woloop | grep -v grep | awk '{ print $2 }
'`
pid="$pid $cpid"
if [ x != x$pid ]; then
    kill $pid
fi
#eof

Hope that helps,

Richard

PS. One final note - we haven't yet deployed these scripts, but they are working
on our test server...

> Would it be possible to have a copy of your script?
>
> Thanks
>
> Richard Lewis-Shell wrote:
>
> > Thanks Michael
> >
> > That 'polling' solution would work for us.  FYI, '-w' does not work
> with HP-UX's
> > ps - here is a snippet from the 10.20 ps man page:
> > "Only a subset of the command line is saved by the kernel; as much of the
> > command line will be displayed as is available."
> >
> > In case anyone is interested in our current, and hopefully final,
> solution, we
> > decided to modify the 'stop' script to kill the child processes
> that might be
> > orphaned after the 'loop' script is killed.  Not quite as encapsulated as it
> > could be, but the 'loop' script remains very simple (no background
> processes, no
> > signal trapping), and only a couple more lines were needed in the
> 'stop' script.
> >
> > Phew - thanks all for your help,
> >
> > Richard
> >
> > > -----Original Message-----
> > > From: Michael Gersten [mailto:michael@getasia.com]
> > > Sent: Tuesday, 4 July 2000 11:09
> > > To: Richard Lewis-Shell
> > > Cc: michael@stb.nccom.com; froy@singleentry.com;
> > > webobjects@omnigroup.com
> > > Subject: Re: Deployment system problem (shell script)
> > >
> > >
> > > > As for background launching/trapping signals, I tried this, without
> > > much luck.
> > > > The point of the script is to firstly start the app and then
> > > restart it when/if
> > > > it finishes.  Thus the launch command sits within a while
> (true) loop.  If I
> > > > start it in the background, this will spawn processes like there's
> > > no tomorrow,
> > > > and bad things will happen.  I tried grabbing the pid of the
> app once it was
> > > > started in the background, then returning it to the foreground
> > > (fg), and tried
> > > > to use a signal trap to stop the now known child pid, but the
> > > signal routine is
> > > > not executed until the foreground process completes!
> > >
> > > Ok, then try something like this:
> > >
> > > while :
> > > do
> > >       while [ kill -0 $CHILD ]
> > >       do
> > >               sleep $DELAY
> > >       done
> > >
> > >       # code to restart the now dead app
> > > done
> > >
> > > Adjust $DELAY as needed -- '2' should work fine.
> > >
> > > > I'm going round in circles.  Perhaps the only option is to use pid
> > > files, or to
> > > > search for processes started by the script (ie. ppid = script
> pid), and kill
> > > > them after the script has been killed.  This seems a little more
> > > fragile than
> > > > necessary - I just thought there might be some cunning way of
> > > telling a shell
> > > > script to kill its children when it dies...
> > >
> > > You can, actually. 'kill 0' will kill everything in the process group.
> > >
> > > Before job control (read: sh, not csh, not bash), every backgrounded
> > > process was in the shell's process group.
> > >
> > > Job control shells start each backgrounded child in a new process group.
> > >
> > > > Richard
> > > >
> > > > > -----Original Message-----
> > > > > From: Michael Gersten [mailto:michael@getasia.com]
> > > > > Sent: Tuesday, 4 July 2000 10:14
> > > > > To: froy@singleentry.com
> > > > > Cc: Richard Lewis-Shell; webobjects@omnigroup.com
> > > > > Subject: Re: Deployment system problem (shell script)
> > > > >
> > > > >
> > > > > You want to use 'trap' in the shell script to catch the kill
> signal. You
> > > > > can then kill the WOApp explicitly.
> > > > >
> > > > > Most likely, you'll want to start the WOApp in the background, save it
> > > > > in a variable, and then use that in your kill statement.
> > > > >
> > > > > Fabien Roy wrote:
> > > > > >
> > > > > > Some suggestions:
> > > > > >
> > > > > > Try to get a bsd "ps" for HPUX from the gnu. BTW Solaris has kept
> > > > > > the bsd ps in "/usr/ucb" and I really understand why :-).
> > > > > >
> > > > > > In the ObjC launcher  you could write (using NSProcessInfo and
> > > > > > getpid())  to a file the process id and the interesting arguments of
> > > > > > the process. I would suggest to use the process id concatenated with
> > > > > > the name of the process as the file name. Then you will have to
> > > > > > remove that file when you kill the process.
> > > > > >
> > > > > > Hope that helps.
> > > > > >
> > > > > > Fabien
> > > > > >
> > > > > > --
> > > > > >     |\      _,,,---,,_      Fabien Roy
> > > > > >     /,`.-'`'    -.  ;-;;,_  Singleentry.com
> > > > > >    |,4-  ) )-,_. ,\ (  `'-' 107 RR 620 South, suite 117
> > > > > >   '---''(_/--'  `-'\_)      Lakeway, TX 78734
> > > > > > Tel: (512) 266-6379 ext 1350
> > > > > > Fax: (512) 266-6375
> > > > > > Mob: (512) 796-9854
> > > > > > http://www.singleentry.com
> > > > > >
> > > > > > _______________________________________________
> > > > > > WebObjects mailing list
> > > > > > WebObjects@omnigroup.com
> > > > > > http://www.omnigroup.com/mailman/listinfo/webobjects
> > > > >
> > > >
> > > > _______________________________________________
> > > > WebObjects mailing list
> > > > WebObjects@omnigroup.com
> > > > http://www.omnigroup.com/mailman/listinfo/webobjects
> > >
> >
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
>
>


From ehermanson at gofish.com  Tue Jul  4 16:10:37 2000
From: ehermanson at gofish.com (Eric Hermanson)
Date: Tue Jul  4 15:10:37 2000
Subject: Two Apps - one Database -> Syncronization?
References: <51325BD9D61DD31186A50040F6340DB806828D@smtp>
Message-ID: <00ae01bfe604$1da9ace0$1501aa0a@seafax.com>

WebObjects already has a form of distributed notification -- it's called
HTTP!  Why not just send a direct action containing archived versions of the
global ID's of changed object(s) to all apps registered in Monitor (e.g.
MyApp.woa/1, MyApp.woa/2, etc).  The direct action handlers for all of the
registered apps can then invalidate the corresponding EO's in their private
object stores.

There are several useful classes in WO4.5 that you can use/subclass to get
this to work:

WODirectAction
WORequestHandler
WOMessage/WORequest/WOResponse
WOHTTPConnection

I guess you could also write a distributed EOObjectStore that acted as the
parent object store for all apps, but that might be way too slow.

- Eric



----- Original Message -----
From: "Paul R. Summermatter" <paulrs@lgs-systems.com>
To: "'Daniel Bleisteiner'" <daniel.bleisteiner@metaobject.de>
Cc: <webobjects@omnigroup.com>
Sent: Tuesday, July 04, 2000 3:43 PM
Subject: RE: Two Apps - one Database -> Syncronization?


> Daniel et al,
>
> <soapbox>
>
> This is a major issue that needs addressing by Apple.  Many of us
> who have dealt with large projects or projects which require up to the
> second data synchronization have endeavored to build various flavors of
> distributed notification servers to deal with this problem (I've done this
> twice now, once in objective-c and once in java).  While I have tremendous
> respect for Eric Noyeau and I have yet to read his latest treatise on this
> subject, I respectfully diagree with him on the subject of distributed
> notification, and I truly believe that some form of distributed
notification
> is the appropriate solution for this problem.  That is, everytime an
object
> is inserted/updated/deleted in one app instance, all other interested app
> instances are immediately notified of this modification in the object
graph.
> Many web app server vendors offer this as a feature, and I think WOF would
> greatly benefit from some sort of real time synchronization
implementation.
> Further, I think the synchornization mechanism should be opensourced so
that
> we may all contribute to its feature set.
>
> </soapbox>
>
> Regards,
> Paul
>
> [ -----Original Message-----
> [ From: Daniel Bleisteiner [mailto:daniel.bleisteiner@metaobject.de]
> [ Sent: Tuesday, July 04, 2000 2:37 PM
> [ To: WebObjects
> [ Subject: Two Apps - one Database -> Syncronization?
> [
> [
> [ Hi,
> [
> [ i just have two different applications running the same database - a
> [ storefront and the backoffice of a shop. Is it possible to tell the
> [ storefront to refetch all changed objects from the database on
> [ session-start?
> [
> [ At this point we need to restart the storefront everytime the
> [ backoffice
> [ changed objects.
> [
> [ Daniel Bleisteiner, MetaObject GmbH
> [ -
> [ Oranienburger Strasse 69, 10117 Berlin
> [ Tel: +49-30-285381-10, Fax: +49-30-285381-99
> [
> [ _______________________________________________
> [ WebObjects mailing list
> [ WebObjects@omnigroup.com
> [ http://www.omnigroup.com/mailman/listinfo/webobjects
> [
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From ehermanson at gofish.com  Tue Jul  4 16:16:38 2000
From: ehermanson at gofish.com (Eric Hermanson)
Date: Tue Jul  4 15:16:38 2000
Subject: Two Apps - one Database -> Syncronization?
References: <51325BD9D61DD31186A50040F6340DB806828E@smtp>
Message-ID: <00b801bfe604$f6d42860$1501aa0a@seafax.com>

----- Original Message -----
From: "Paul R. Summermatter" <paulrs@lgs-systems.com>

> Further, what if you have a tool running
> that has nothing to do with WOF and cannot handle direct actions, but
needs
> to be notified of changes.  Also, I do not recall any error checking (ie,
> what happens if one of the other app instances does not get a notification
> because of a communication failure).

Keep in mind that error checking an asyncrhonous notification will always be
impossible, whether you use direct actions or D.O.  To achieve a fail-safe
asynchronous notification system, you need to have a persistent event queue,
and objects that process that queue full time.

As for not wanting to use DirectActions, you could get fancy and subclass
WOMessage and WORequestHandler (and maybe WOAdaptor) to come up with your
own notification scheme.  Apple should rip these classes (or related
classes) out of WebObjects so non-wo apps can use them.

- Eric



From d.theisen at dv-org.de  Tue Jul  4 16:42:54 2000
From: d.theisen at dv-org.de (Dirk Theisen)
Date: Tue Jul  4 15:42:54 2000
Subject: wish list and bad things in WO
In-Reply-To: <19990809172143.23986.qmail@nwcst091.netaddress.usa.net>
Message-ID: <1ed9tnb.yzdpnx1cey5vkM%d.theisen@objectpark.de>

Hello!

> Here is my wish list for WebObjects:
> - my own custom sub-component representation in WebObjectsBuilder. I want my
>   sub-component to look like a WORepetition, or a WOCondition

In addition, we'd like to be able to provide custom views and custom
inspectors(!) like the BODY inspector

> - EOModeler format in xml
> - XMLFileAdaptor
> - change wod files to xml

We at ObjectTeam very much second this. This would allow us to drive
user friendlyness and look of our WAP framework
<http://www.wapobjects.com> to the max.

Regards,
  Dirk

From clread at mindspring.com  Tue Jul  4 17:02:50 2000
From: clread at mindspring.com (Charles L. Read)
Date: Tue Jul  4 16:02:50 2000
Subject: remove WODisplayGroups, but re-compilation fails
Message-ID: <87r999zkge.fsf@mindspring.com>

0. I set up a component with several WODisplayGroups.

1. Later, I removed all WODisplayGroups, then re-compiled.

2. WO App now fails.


Besides removing WODisplayGroup from the visual component,
and ensuring references in the .wod file are removed, is
there further work you have to do to purge WODisplayGroups
that you have removed?

Regards,
-- 
Charles L. Read <charles_read@hotmail.com>
PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65

From dhsu at semantix.com  Tue Jul  4 17:12:26 2000
From: dhsu at semantix.com (donny Hsu)
Date: Tue Jul  4 16:12:26 2000
Subject: remove WODisplayGroups, but re-compilation fails
In-Reply-To: <87r999zkge.fsf@mindspring.com>
Message-ID: <4.3.2.7.0.20000704191036.00af5cf0@pop.semantix.com>

>0. I set up a component with several WODisplayGroups.
>
>1. Later, I removed all WODisplayGroups, then re-compiled.
>
>2. WO App now fails.
>
>
>Besides removing WODisplayGroup from the visual component,
>and ensuring references in the .wod file are removed, is
>there further work you have to do to purge WODisplayGroups
>that you have removed?

Have you looked in the .woo file?



From leon at drakeassociates.com  Tue Jul  4 17:14:24 2000
From: leon at drakeassociates.com (Leon Amdour)
Date: Tue Jul  4 16:14:24 2000
Subject: remove WODisplayGroups, but re-compilation fails
In-Reply-To: <87r999zkge.fsf@mindspring.com>
Message-ID: <4.3.2.7.1.20000704161308.00b0d530@drakeassociates.com>

>
>0. I set up a component with several WODisplayGroups.
>
>1. Later, I removed all WODisplayGroups, then re-compiled.
>
>2. WO App now fails.
>
>
>Besides removing WODisplayGroup from the visual component,
>and ensuring references in the .wod file are removed, is
>there further work you have to do to purge WODisplayGroups
>that you have removed?

Well, references and bindings need to be removed... Where does it fail? 
Does it compile and build? Does it throw an exception during execution? Try 
catching it and calling printStackTrace.

Leon



From ccc at idirect.com  Tue Jul  4 17:17:15 2000
From: ccc at idirect.com (Michael Clark)
Date: Tue Jul  4 16:17:15 2000
Subject: Writing tools in Java.
Message-ID: <4.1.20000704190223.01b47dc0@pop.idirect.com>

Hello All.

Has anyone managed to write a Tool using Java?
When I created the project of Tool type and it does not give me the option
of using Java.

Here is what I tried thus far (My project is called DataConverter, and the
java file is DataConverter.java):
#import <Foundation/Foundation.h>
#import <JavaVM/JavaVM.h>

int main(int argc, char *argv[])
{
	Class converterClass;
	id converter;

	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

	converterClass = [[NSJavaVirtualMachine defaultVirtualMachine]
findClass:@"DataConverter"];

	[pool release];
	exit(0);
	return 0;
}

I am not even sure if that is on the right track or not.  All I want to do
is write a Java application here! :)

If anyone has any ideas that would be appreciated.
Thanks.
Michael.


From clread at mindspring.com  Tue Jul  4 17:57:25 2000
From: clread at mindspring.com (Charles L. Read)
Date: Tue Jul  4 16:57:25 2000
Subject: SIGSEGV implicated with WODisplayGroup.setDelegate()
Message-ID: <87em59zhxi.fsf@mindspring.com>

See 2 files appended, Main.java, ProductDelegate.java.

The relevant method in ProductDelegate is displayGroupShouldFetch().

Now, in Main(), there are 2 cases:

	0. Success case. Comment out:

		myDisplayGroup.setDelegate(...);
		myDisplayGroup.fetch();

	   makeNewAccount() works fine, and you
	   proceed to the next component.

	1. Failure case. Uncomment the two lines
	   shown above.  Now when makeNewAccount()
	   is called, the WO app dumps core.

	   In fact, just the call to

		myDisplayGroup.setDelegate(...);

	   is sufficient to lead to a core dump.


What is going on here?  Is there something wrong
with my implementation of ProductDelegate()?  Is
there more special work I must do when I fetch
manually (ie, I do not `Fetch on load' when I set
up the WODisplayGroup).


This is really holding my progress.
So any help is greatly appreciated.

Regards,
Charlie




// Generated by the WebObjects Wizard Fri Jun 30 09:38:34 US/Pacific 2000

import com.apple.yellow.foundation.*;
import com.apple.yellow.webobjects.*;
import com.apple.yellow.eocontrol.*;
import com.apple.yellow.eoaccess.*;

import java.util.*;

public class Main extends WOComponent {
    protected WODisplayGroup myDisplayGroup;

    public Main() {
        super();
	
	// Following 2 lines work fine.  But when executed,
	// makeNewAccount() will dump core.
	myDisplayGroup.setDelegate(new ProductDelegate("Product", "category",
		EOQualifier.QualifierOperatorLike, new String("Hyper*")));
	myDisplayGroup.fetch();
    }

    public CustomerAccountInfo makeNewAccount() {
	Customer customer = new Customer();
	session().defaultEditingContext().insertObject(customer);

        // Create and initialize your component here.
        CustomerAccountInfo nextPage = (CustomerAccountInfo)pageWithName("CustomerAccountInfo");
	nextPage.setCustomer(customer);

        return nextPage;
    }
}



/* ProductDelegate.java created by root on Mon 26-Jun-2000 */

import com.apple.yellow.foundation.*;
import com.apple.yellow.eoaccess.*;
import com.apple.yellow.eocontrol.*;
import com.apple.yellow.webobjects.*;


public class ProductDelegate implements WODisplayGroup.Delegate
{
    private String table;
    private String column;
    private NSSelector operator;
    private Object right_hand_side;

    public ProductDelegate(String table, String column, NSSelector operator, Object rhs)
    {
	this.table = table;
	this.column = column;
	this.operator = operator;
	this.right_hand_side = rhs;
    }

    /* 
     * Interface for WODisplayGroup.Delegate.
     */
    public void displayGroupCreateObjectFailedForDataSource(WODisplayGroup dg, Object ds)
    {
	// nothing.
    }

    public void displayGroupDidChangeDataSource(WODisplayGroup dg)
    {
	// nothing.
    }

    public void displayGroupDidChangeSelectedObjects(WODisplayGroup dg)
    {
	// nothing.
    }

    public void displayGroupDidChangeSelection(WODisplayGroup dg)
    {
	// nothing.
    }

    public void displayGroupDidDeleteObject(WODisplayGroup dg, Object o)
    {
	// nothing.
    }

    public void displayGroupDidFetchObjects(WODisplayGroup dg, NSArray ar)
    {
    }

    public void displayGroupDidInsertObject(WODisplayGroup dg, Object o)
    {
	// nothing.
    }

    public void displayGroupDidSetValue(WODisplayGroup dg, Object val,
					Object o, String key)
    {
	// nothing.
    }

    public NSArray displayGroupDisplayArrayForObjects(WODisplayGroup dg, NSArray ar)
    {
	// NOTE: the current selection is preserved.  This matters.
	return ar;
    }

    public boolean displayGroupShouldChangeSelectionToIndexes(WODisplayGroup dg, NSArray ar)
    {
	return true;
    }

    public boolean displayGroupShouldDeleteObject(WODisplayGroup dg, Object o)
    {
	return true;
    }

    public boolean displayGroupShouldFetch(WODisplayGroup dg)
    {
	EODatabaseDataSource ds = (EODatabaseDataSource)dg.dataSource();
	EOQualifier qual = new EOKeyValueQualifier(column, operator, right_hand_side);
	EOFetchSpecification fs = new EOFetchSpecification(table, qual, null);
	ds.setFetchSpecification(fs);
	return true;
    }

    public boolean displayGroupShouldInsertObject(WODisplayGroup dg, Object o, int index)
    {
	return true;
    }

    public boolean displayGroupShouldRedisplayForChangesInEditingContext(
	WODisplayGroup dg, NSNotification nsn)
    {
	return true;
    }

    public boolean displayGroupShouldRefetchForInvalidatedAllObjects(
	WODisplayGroup dg, NSNotification nsn)
    {
	return true;
    }
}

From ccc at idirect.com  Tue Jul  4 18:03:53 2000
From: ccc at idirect.com (Michael Clark)
Date: Tue Jul  4 17:03:53 2000
Subject: OOPPS! Forgot a line! Writing tools in Java.
Message-ID: <4.1.20000704195750.01b549d0@pop.idirect.com>

I forgot, I did instantiate the object:
converter = [[converterClass alloc] init];

this was before the [pool release]; line.

Thanks.
Michael.


>X-Sender: ccc@pop.idirect.com
>X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1
>Date: Tue, 04 Jul 2000 19:12:53 -0400
>To: webobjects@omnigroup.com
>From: Michael Clark <ccc@idirect.com>
>Subject: Writing tools in Java.
>Sender: webobjects-admin@omnigroup.com
>X-BeenThere: webobjects@omnigroup.com
>X-Mailman-Version: 2.0beta3
>List-Id: Discussions of Apple's WebObjects <webobjects.omnigroup.com>
>
>Hello All.
>
>Has anyone managed to write a Tool using Java?
>When I created the project of Tool type and it does not give me the option
>of using Java.
>
>Here is what I tried thus far (My project is called DataConverter, and the
>java file is DataConverter.java):
>#import <Foundation/Foundation.h>
>#import <JavaVM/JavaVM.h>
>
>int main(int argc, char *argv[])
>{
>	Class converterClass;
>	id converter;
>
>	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
>
>	converterClass = [[NSJavaVirtualMachine defaultVirtualMachine]
>findClass:@"DataConverter"];
>
>	[pool release];
>	exit(0);
>	return 0;
>}
>
>I am not even sure if that is on the right track or not.  All I want to do
>is write a Java application here! :)
>
>If anyone has any ideas that would be appreciated.
>Thanks.
>Michael.
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects


From garrison at standardorbit.com  Tue Jul  4 18:14:43 2000
From: garrison at standardorbit.com (Bill Garrison)
Date: Tue Jul  4 17:14:43 2000
Subject: PWO II Training in Toronto
Message-ID: <auto-000015239362@mail1.noc0.hsacorp.net>

I'm looking for information and opinions on the Programming WebObjects II  
course, particularly being taught in Toronto.  Does anyone know if Apple  
does the Toronto training or is it a local consulting firm?

Thanks!

Bill
----
Bill Garrison
garrison@standardorbit.com

From nafissi at apple.com  Tue Jul  4 19:28:31 2000
From: nafissi at apple.com (Nader Nafissi)
Date: Tue Jul  4 18:28:31 2000
Subject: Writing tools in Java.
In-Reply-To: <4.1.20000704190223.01b47dc0@pop.idirect.com>
Message-ID: <Pine.GSO.4.21.0007041827050.9481-100000@gala.apple.com>

Michael,

Check out the following Tech Info article on how to create a Java Tool
project:

http://til.info.apple.com/techinfo.nsf/artnum/n70110

Nader

On Tue, 4 Jul 2000, Michael Clark wrote:

> Hello All.
> 
> Has anyone managed to write a Tool using Java?
> When I created the project of Tool type and it does not give me the option
> of using Java.
> 
> Here is what I tried thus far (My project is called DataConverter, and the
> java file is DataConverter.java):
> #import <Foundation/Foundation.h>
> #import <JavaVM/JavaVM.h>
> 
> int main(int argc, char *argv[])
> {
> 	Class converterClass;
> 	id converter;
> 
> 	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
> 
> 	converterClass = [[NSJavaVirtualMachine defaultVirtualMachine]
> findClass:@"DataConverter"];
> 
> 	[pool release];
> 	exit(0);
> 	return 0;
> }
> 
> I am not even sure if that is on the right track or not.  All I want to do
> is write a Java application here! :)
> 
> If anyone has any ideas that would be appreciated.
> Thanks.
> Michael.
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 


From leeden at euro.apple.com  Wed Jul  5 01:32:35 2000
From: leeden at euro.apple.com (Christian van der Leeden)
Date: Wed Jul  5 00:32:35 2000
Subject: WO4.0.1 -> 4.5 Deployment
References: <3961EB0E.D579D53A@synergycentres.org>
Message-ID: <005501bfe653$610d5140$05664511@hesse>

Hi Mark,

    wotaskd is now having the output you are looking for. On OSX
this is redirected to /var/log/webobjects.log.
Do a tail -f to see what's going on when  starting.

CU

Christian
----- Original Message ----- 
From: "Mark Gowdy" <mark@synergycentres.org>
To: "Multiple recipients of list" <webobjects@omnigroup.com>
Sent: Tuesday, July 04, 2000 3:47 PM
Subject: WO4.0.1 -> 4.5 Deployment


> Mmmm..
> I'm afraid this is a 'two birds with one stone' email
> 
> First of all :
> I transfered an old wo4.0.1 app onto a new installation of 4.5
> (OS-X 1.0.2 - Frontbase)  --  (excellent database btw)
> 
> I am now getting the error message
> 
> "Attempted to begin a transaction within a transaction."
> 
> when I try to saveChanges after inserting an object.
> 
> Secondly :
> I could start the app by clicking on the myApp in the myApp.woa
> directory
> But when I try to use monitor, myApp only starts for a brief moment and
> then dies..
> I can't seem to find where it sends it's output so I can see what is
> happening...
> The docs say that errors appear in the WebServers error log, but there
> is no sign of any entries there !
> 
> In 4.0.1 the monitor would display all it's output in a window or I
> would redirect the output to a log file,
> what does 4.5 monitor do with it ?
> 
> 
> Many thanks again....
> 
> Mark
> --
> 
> /=========================\
> |        Mark Gowdy
> |        Software Manager
> |        Synergy Centres Ltd
> |        Tel: 028 90 288844
> |        Mobile : 07808 400941
> |        ICQ : 31587517
> \=========================/
> 
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 


From bmarquis at ogse.com  Wed Jul  5 07:37:10 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Wed Jul  5 06:37:10 2000
Subject: Accessing elements of Session.java
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284526@SBNT4>

It sounds like the Session variables are protected and don't have accessor
methods. Either make the variables public or (this is preferred) create
public accessor methods for the variables.

> -----Original Message-----
> From:	Joshua 'Tool User' Marker [SMTP:axislux@pacbell.net]
> Sent:	Sunday, July 02, 2000 8:21 PM
> To:	david m. richter; rrutigliano@mail.kindercare.com
> Cc:	webobjects@omnigroup.com
> Subject:	Re: Accessing elements of Session.java
> 
>     We make an abstract superclass (MyWoComponent.java) and have all our
> components descend from it. It includes:
> 
> private Session mySession() { return (Session) session(); }
> 
>     The win here is that mySession shows up in WOB, allowing access to
> session methods and variables from within that app.
> 
>     This is slightly less obnoxious than littering my code with
> ((Session)session()).mySessionMethod(foo, bar); all the time. I still feel
> dirty, but. . . you gotta love java! (Why do ya gotta? 'cause it's the
> only
> show in town!)
> 
>     You see, session() returns the WOSession, and you need to cast (a java
> term - it makes your code feel not unlike a fractured, twisted limb; hence
> 'cast') the returned object to Session 'cause java is a bit nervous about
> trying out methods willy-nilly on objects it's not sure can take it.
> 
>    -j (who has been writing ObjC again lately -- did you guess?)
> 
> on 12/24/99 10:29 AM, david m. richter at drichter@apple.com wrote:
> 
> >> I have added some variables to Session.java with hopes that they would
> >> be global to all screens in a project.  The screen designer uses these
> >> variables just fine.  My problem is--how do you access these variables
> >> from a different java file (for example Main.java).  If I use (Session)
> >> this.session(), it doesn't work.  All of my custom variables come back
> >> as null since this.session returns type WOSession, not Session.
> >> 
> > 
> > Hi there,
> > That's a good question; what you want to do is make sure that
> > you can get at those custom variables, obviously.  For this, make
> > sure that your cast is working properly--check out how you used
> > it.  For instance, if you're in a given different .java file (say,
> > MyCustomComponent.java) and you want access to some String
> > in that's in the session (and has the appropriate accessor), you'd say:
> > ...
> > Session s = (Session)session();
> > String localString = s.sessionString();
> > ...
> > You already seem to know that a given WOComponent will
> > know how to give you back a reference to its current Session
> > instance, and you can read a bit more about it in WOInfoCenter
> > or the JavaBrower.  `this' isn't needed.
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From bmarquis at ogse.com  Wed Jul  5 07:38:45 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Wed Jul  5 06:38:45 2000
Subject: Accessing objects in session
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284527@SBNT4>

try:

acctNumber = session.account().accountNumber();

> -----Original Message-----
> From:	Gary Teter [SMTP:bigdog@bulldogbeach.com]
> Sent:	Thursday, June 29, 2000 4:33 PM
> To:	Spencer Miles; WebObjects Mailing List
> Subject:	Re: Accessing objects in session
> 
> on 6/29/00 2:01 PM, Spencer Miles at smiles@tpud.org wrote:
> 
> > I have all my EOEnterpriseObjects defined in session.java.  I'm not sure
> if
> > this is the best thing to do or not, but it works best for me, because
> then
> > all my seperate pages can access them.  Anyways how do I reference one
> of
> > these. For example i've tried session.account.accountNumber(), where
> account
> > is a table in the database. But that doesn't work.
> > protected String acctNumber;
> > acctNumber = session.account.accountNumber();
> > 
> > I get the error 'Identifier Expected'
> > Can anyone point me in the right direction on this?
> > thanks
> 
> In general, there's nothing wrong with keeping stuff in your session,
> especially if it's going to be used by multiple pages.
> 
> You're getting confused between the notation used in a wod file and that
> used in Java code.
> 
> In a wod file, you write the binding like so:
>     session.account.accountNumber
> 
> But in Java code, some of those are method calls, like so:
>     session().account().accountNumber();
> 
> At a minimum, session() is a method call, but I'd make account() and
> accountNumber() method calls too. Generally instead of making your
> instance
> variables available (so you could write session().account.accountNumber ),
> you should wrap them in accessors, like so:
> 
> public class Session extends WOSession {
> 
>     protected EOEnterpriseObject _account;
> 
>     /** @TypeInfo Account */
>     public EOEnterpriseObject account() {
>         return _account;
>     }
> 
>     public void setAccount(EOEnterpriseObject value) {
>         _account = value;
>     }
> }
> 
> This won't affect the way you bind stuff in the wod file -- WebObjects is
> smart enough to call your accessor if you say
> session.account.accountNumber
> in a wod file.
> 
> Oh, one other thing, you're going to have to cast the call to session() to
> return an instance of your custom Session subclass, otherwise the compiler
> won't be able to find your methods (or publicly-available instance
> variables). Like so:
> 
>     String accountNumber = ((Session)session()).account().accountNumber();
> 
> 
> -- 
> Gary Teter, Big Dog
> Bulldog Beach Interactive http://www.bulldogbeach.com
> There's always an excuse, and it usually involves coffee.
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From Dylan.Pugh at proact.net  Wed Jul  5 08:17:07 2000
From: Dylan.Pugh at proact.net (Dylan)
Date: Wed Jul  5 07:17:07 2000
Subject: Use of setAutoOpenInBrowser
Message-ID: <00a201bfe68b$c3639830$477ae0c3@dpugh>

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Can someone send me code on how to use setAutoOpenInBrowser
in WebScript if possible, java will also be fine

Thanks,
=20
 Dylan.

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<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2920.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>
<DIV><FONT face=3DArial size=3D2>Can someone send me code on how to use=20
setAutoOpenInBrowser</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>in WebScript if possible, java will =
also be=20
fine</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial=20
size=3D2>&nbsp;Dylan.</FONT></DIV></FONT></DIV></BODY></HTML>

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From ESchneider at tiaa-cref.org  Wed Jul  5 08:28:22 2000
From: ESchneider at tiaa-cref.org (Schneider, Eric)
Date: Wed Jul  5 07:28:22 2000
Subject: Bar charts, pie charts, etc.
Message-ID: <7A69F7FAA422D31195DB0000F6AB4EBB029BADCF@msxnyusr02.wins.tiaa-cref.org>

Howdy,
 
I'm working on a project that will require dynamic charts.........for
example a bar chart that shows the effect of inflation over 30
years......real exciting stuff.
 
Has anyone come across any nifty tools that does this and works well with
WO?  Someone had mentioned JChart....had anyone used that?  Suggestions
would be greatly appreciated.
 
Thanks,
Eric.


From Mariano.Barcia at teknoland.com  Wed Jul  5 08:33:44 2000
From: Mariano.Barcia at teknoland.com (Mariano Barcia)
Date: Wed Jul  5 07:33:44 2000
Subject: WO with B2C ?
Message-ID: <002c01bfe68e$d7802fb0$4201010a@VIRTUAL>

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people:

    I want to know if WO offers components for building a retail store =
online (catalog, products, orders, etc.). I=B4ve found such a package in =
FlashLine.com (Enterprise Business Components from Diamelle =
Technologies) but I could not download the demo yet because of a problem =
with a Diamelle=B4s license (I have to wait until July 5th). Besides, I =
don=B4t know if these components could be integrated within Apple =
WebObjects.

TIA

Mariano Barcia



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http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>people:</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>&nbsp;&nbsp;&nbsp; I want to know if WO =
offers&nbsp;components=20
for building a retail store online (catalog, products, orders, etc.). =
I=B4ve found=20
such a package in&nbsp;FlashLine.com (Enterprise Business Components =
from=20
Diamelle Technologies)&nbsp;but I could not download the demo yet =
because of a=20
problem with a Diamelle=B4s&nbsp;license (I have to wait until July =
5th). Besides,=20
I don=B4t know if these&nbsp;components could be integrated within Apple =

WebObjects.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>TIA</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Mariano Barcia</FONT></DIV>
<DIV><FONT size=3D2><BR>&nbsp;</DIV></FONT></BODY></HTML>

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BEGIN:VCARD
VERSION:2.1
N:Barcia;Mariano;Eugenio
FN:Mariano Eugenio Barcia
ORG:Teknoland rtt;IT
TITLE:IT Consultant
TEL;WORK;VOICE:43453300 int 208
TEL;CELL;VOICE:45502867
ADR;WORK:;;Av A M de Justo 872 2P 12;Buenos Aires;BA;1107;AR
LABEL;WORK;ENCODING=3DQUOTED-PRINTABLE:Av A M de Justo 872 2P =
12=3D0D=3D0ABuenos Aires, BA 1107=3D0D=3D0AAR
X-WAB-GENDER:2
BDAY:19730515
EMAIL;PREF;INTERNET:Mariano.Barcia@teknoland.com
EMAIL;INTERNET:mbarcia@yahoo.com
REV:20000705T143905Z
END:VCARD

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From Dylan.Pugh at proact.net  Wed Jul  5 08:37:06 2000
From: Dylan.Pugh at proact.net (Dylan)
Date: Wed Jul  5 07:37:06 2000
Subject: Use of setAutoOpenInBrowser - Sorry
References: <00a201bfe68b$c3639830$477ae0c3@dpugh>
Message-ID: <00ba01bfe68e$6f7d4b50$477ae0c3@dpugh>

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Sorry I have Managed to anwer my own Question ....

[WOApplication setAutoOpenInBrowser:NO];


Doh!

Dylan.


  ----- Original Message -----=20
  From: Dylan=20
  To: webobjects@omnigroup.com=20
  Sent: Wednesday, July 05, 2000 3:17 PM
  Subject: Use of setAutoOpenInBrowser


  Can someone send me code on how to use setAutoOpenInBrowser
  in WebScript if possible, java will also be fine

  Thanks,
  =20
   Dylan.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2920.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Sorry I have Managed to anwer my own =
Question=20
....</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>[WOApplication=20
setAutoOpenInBrowser:NO];</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Doh!</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Dylan.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:Dylan.Pugh@proact.net" =
title=3DDylan.Pugh@proact.net>Dylan</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  href=3D"mailto:webobjects@omnigroup.com"=20
  title=3Dwebobjects@omnigroup.com>webobjects@omnigroup.com</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, July 05, 2000 =
3:17=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Use of=20
setAutoOpenInBrowser</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>
  <DIV><FONT face=3DArial size=3D2>Can someone send me code on how to =
use=20
  setAutoOpenInBrowser</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>in WebScript if possible, java will =
also be=20
  fine</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial=20
size=3D2>&nbsp;Dylan.</FONT></DIV></FONT></DIV></BLOCKQUOTE></BODY></HTML=
>

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From michael at stb.nccom.com  Wed Jul  5 08:43:25 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Wed Jul  5 07:43:25 2000
Subject: Initialising PageWithName Objects
References: <p04320404b5878f40a491@[10.0.1.2]>
Message-ID: <3963494C.4BAE85EE@getasia.com>

Try something like
SearchResult myNewPage = (SearchResult)pageWithName("SearchResult");
myNewPage.init(arg1, arg2, arg3);

and then define an init routine in the SearchResult class.

(hope I got the java syntax right, I work with objC)

Nils Ängquist wrote:
> 
> If I create an object with for example:
> 
> SearchResult myNewPage = (SearchResult)pageWithName("SearchResult");
> 
> How can I put initialisation code for that object i a similar way as
> one normally can when using a constructor?
> 
> TIA,
> 
> - Nils
> --
> 
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> Nils Ängquist                       Sisyfos Produktion
> Gibraltargatan 80 - 1114            http://www.sisyfos.com/
> SE-412 79 Göteborg
> nils@sisyfos.com
> +46 - 31 - 778 18 08
> +46 - 70 - 318 48 08 (cellphone)
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From mmalc at stepwise.com  Wed Jul  5 08:49:30 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Wed Jul  5 07:49:30 2000
Subject: Accessing objects in session
In-Reply-To: <CD4FCCD776FDD211986F00A0C9A70947284527@SBNT4>
Message-ID: <B58909B7.95BD%mmalc@stepwise.com>

Brian P. Marquis wrote:
> try:
> acctNumber = session.account().accountNumber();
> 
I'm not sure why these two lines warranted reposting the whole of the
previous mail, since it's not clear:
(a) to what they actually refer;
(b) how they augment the previous mail;
(c) how they would ever work in a component unless you'd already defined
    Session session = (Session)session();
    which is sort of what the original questioner had missed anyway.
?

To address one of the other original questions:
> I have all my EOEnterpriseObjects defined in session.java.  I'm not sure if
> this is the best thing to do or not,
>
Maybe not... apart from anything else it may lead you into "bad habits".
State storage is a tricky issue: when students on PWOI find out about the
Session object, some seem to develop a mania for putting as much state
information into the Session as possible.  Remember that this may increase
the memory overhead of your application if you "leave it lying around" after
it's no longer needed.  If a "piece of information" is only required by two
or three components, you should consider simply passing it between them as
required rather than storing it in the session.

mmalc.


From j-rochkind at nwu.edu  Wed Jul  5 08:52:18 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 07:52:18 2000
Subject: Instantiating WOComponent with "new" vs. "pageWithName"
In-Reply-To: <200007041350.GAA07772@scyther.omnigroup.com>
Message-ID: <4.2.2.20000705094937.019eff18@hecky.acns.nwu.edu>

Instantiating a component with pageWithName ought to set the component's 
context() to be the correct thing. It might do other things too, but I 
doubt it---I think it's just the context.

Now, WOComponent doesn't seem to have any setContext() method, oddly. So 
even if you could configure a proper WOContext object, I'm not sure how 
you'd set it in the component yourself without pageWithName().

Really, while you might be able to find some workaround, the WO framework 
really wants you to use pageWithName().  Is there any reason you can't do 
the parameterized setup AFTER the instantiation?

MyComponent component = (MyComponent) pageWithName("MyComponent");
component.setupWithParameters(param1, param2, param3);
return component;

--Jonathan

At 06:53 AM 7/4/2000 -0700, you wrote:
>Earlier in the year there was some discussion of the fact that
>instantiating a WOComponent using "new" did not generate the same results
>as using "pageWithName".  I didn't see any fixes in the list archive.
>
>I've been bumping up against this in a couple of cases because I'm trying
>to do some parameterized initialization and need to use "new".  Comparing
>2 objects that are supposed to be the same shows that using "new",
>baseURL, name and path show the component where the instantiation was
>done instead of the actual component, and there is no session.
>
>Does anyone know why this happens, and is there a clean way to "fix" it?
>
>One thing that's very strange, is that in a test where I created a temp
>page with "pageWithName" and then created the real page with "new" (to
>compare them), the two were identical!  It didn't work if the real page
>was instantiated first, though.  That may be an effective workaround,
>although there may be some side effects....
>
>Any thoughts or other findings would be greatly appreciated.
>
>Happy 4th of July!
>
>Michael
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From ghopson at novazen.com  Wed Jul  5 08:55:16 2000
From: ghopson at novazen.com (Geoff Hopson)
Date: Wed Jul  5 07:55:16 2000
Subject: Bar charts, pie charts, etc.
Message-ID: <200007051455.HAA27350@scyther.omnigroup.com>

Check out www.corda.com for popcharts, and the accompanying  
WebObjects framework from Pat Homelvig at www.whitewolf.com

Geoff

>
> Howdy,
>
> I'm working on a project that will require dynamic charts.........for 
> example a bar chart that shows the effect of inflation over 30
> years......real exciting stuff.
>
> Has anyone come across any nifty tools that does this and works  
well with
> WO?  Someone had mentioned JChart....had anyone used that?  Suggestions 
> would be greatly appreciated.
>
> Thanks,
> Eric.
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
>
>

From caffeine at toodarkpark.org  Wed Jul  5 08:55:30 2000
From: caffeine at toodarkpark.org (Howie)
Date: Wed Jul  5 07:55:30 2000
Subject: Use of setAutoOpenInBrowser - Sorry
In-Reply-To: <00ba01bfe68e$6f7d4b50$477ae0c3@dpugh>
Message-ID: <Pine.LNX.3.96.1000705145416.4158B-100000@rabies.toodarkpark.org>

On Wed, 5 Jul 2000, Dylan wrote:

> Sorry I have Managed to anwer my own Question ....
> 
> [WOApplication setAutoOpenInBrowser:NO];

or -WOAutoOpenInBrowser NO from the cmd line (which is what I use all the
time).

---
Howie <caffeine@toodarkpark.org>   URL: http://www.toodarkpark.org
"Programming today is a race between software engineers striving to 
 build bigger and better idiot-proof programs, and the Universe trying 
 to produce bigger and better idiots. So far, the Universe is winning."


From michael at stb.nccom.com  Wed Jul  5 08:56:59 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Wed Jul  5 07:56:59 2000
Subject: Two Apps - one Database -> Syncronization?
References: <51325BD9D61DD31186A50040F6340DB806828E@smtp> <00b801bfe604$f6d42860$1501aa0a@seafax.com>
Message-ID: <39634C64.F27BB73@getasia.com>

> Keep in mind that error checking an asyncrhonous notification will always be
> impossible, whether you use direct actions or D.O.  To achieve a fail-safe
> asynchronous notification system, you need to have a persistent event queue,
> and objects that process that queue full time.

It's not impossible. TimeWarp did it about 10-15 years ago (granted, it
was a very different application domain, distributed scheduling with
timestamp-based rollback).

The key point: the event queue doesn't need to be 100% persistent; you
just need a way to track what is the farthest point back in time that
you might have to worry about. 

If I'm looking at something where A tells B 'X has changed at time T',
then A needs to keep track of the notice until B says "Thank you", or a
timeout occurs (and then the changed notice is resent), or a
communications failure is returned (in which case B isn't around
anymore). B, on receiving the notice, can either just say "I'll reload
now", or it can say "I need to see if this change alters what I did back
at T; if so, I need to change what I've done and send out my own changed
notices".

Cleanup of old time-propagated change notices was by a 2 phase time
cleanup; phase one determined what was the oldest time this machine had
to worry about, phase two was what is the oldest time that any one else
has to worry about. Phase two's information then allows you to update
your next phase one (and throw away the old stuff).

And, if no one ever needs to worry about roll back (just reload and
continue), then there's no need for any of the time tracking stuff, just
the "what has or has not been ack'd" list.

Michael

From j-rochkind at nwu.edu  Wed Jul  5 08:57:55 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 07:57:55 2000
Subject: Instantiating WOComponent with "new" vs. "pageWithName"
In-Reply-To: <p04320402b587a5844927@[192.168.1.2]>
References: <200007041350.GAA07772@scyther.omnigroup.com>
 <200007041350.GAA07772@scyther.omnigroup.com>
Message-ID: <4.2.2.20000705095710.02142568@hecky.acns.nwu.edu>

I'm not sure I understand your question, but you can bind a WOComponent to 
the "action" binding of a WOHyperlink.  This binding must be bound to a 
method that returns a WOComponent, OR an iVar that is a WOComponent. Either 
will work.

Of course, your action method doesn't need to return a WOComponent, it can 
actually return any WOActionResults in 4.5. (mainly meaning a WOResponse 
instead). So I assume that you can also bind the 'action' to a 
WOResponse.  You probably CAN'T just bind it to a String containing XML.  I 
don't work with XML, but isn't there some kind of object that conforms to 
WOActionResults that is meant for returning XML?  Maybe a WOResponse set up 
the right way?  Anyway, bind the 'action' binding to either a variable 
containing one of these, or a method returning one of these.

Hope this helps,
--Jonathan

At 07:38 AM 7/4/2000 -0700, you wrote:
>On a related note.  One of my pages has a property that is a WOComponent, 
>in which there is a property containing an xml string.  In debug mode, I 
>want to be able to click on a link to a page that shows the xml (IE5 on 
>Windows shows this xml nicely).
>
>The straightforward thing to do is to bind the xml component to the link 
>so the xml component is switched to when you click on the 
>link.  Unfortunately I can't find a binding that will do this, as I can 
>find no documentation on WOHyperlink.  Not here
>http://developer.apple.com/techpubs/webobjects/System/Library/Frameworks/We 
>bObjects.framework/Java/WebObjectsTOC.html
>Not in the little doc book icon in the WOBuilder inspector.
>
>I supposed I have to find that xml component object by name then set it to 
>essentially be a copy of the existing one?  This is gross.
>
>Open source for the runtime!  Or failing that, 100% perfect documentation.
>
>Dave
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From j-rochkind at nwu.edu  Wed Jul  5 09:01:01 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 08:01:01 2000
Subject: Context error ...
In-Reply-To: <014c01bfe5da$0b8db210$1300a8c0@yann>
Message-ID: <4.2.2.20000705100022.0213b170@hecky.acns.nwu.edu>

If there are any relationships in your EO, and those relationships are set 
to an EO from a different Editing Context (or not in an editing context at 
all!), you will get this confusingly indirect error.

So what do you do with newOffer prior to inserting it?  Do you set any 
relationships? If so, that's the problem. The best way to solve this would 
be to insert newOffer into the EC immediately after creating it, before 
setting any of it's relationships.

If your problem isn't due to relationships, then I'm not sure. But that's 
what that error, counter-intuitively, always means for me.

--Jonathan

At 07:05 PM 7/4/2000 +0200, you wrote:
>After refresh my navigator (by pressing my F5 key), if i make a saving 
>with this :
>
>session().defaultEditingContext().insertObject(newOffer);
>session().defaultEditingContext().saveChanges();
>
>my app return this error :
>
>Exception : NSInternalInconsistencyException: _globalIDForObject:: 
>EODatabaseContext 0x25866d8 unable to obtain global id for Category object 
>0x25cf640 from EOEditingContext 0x25ea188
>Do you know this problem ?




From kobylins at informatik.tu-muenchen.de  Wed Jul  5 09:07:31 2000
From: kobylins at informatik.tu-muenchen.de (Rafael K. Kobylinski)
Date: Wed Jul  5 08:07:31 2000
Subject: Oracle Business Components for Java
In-Reply-To: <002c01bfe68e$d7802fb0$4201010a@VIRTUAL>
References: <002c01bfe68e$d7802fb0$4201010a@VIRTUAL>
Message-ID: <v04220804b588fd33850a@[131.159.9.184]>

With Oracle Business Components for Java Oracle promises to offer 
similar functionality for their Application Server to what the 
WebObjects Framework and EOF provide us (at least thats what I 
understand from their high level white paper - I doubt they are 
really database independent).

I am wondering if there is anyone on this list with hand-on 
experience with Oracle Business Components and the Oracle Application 
Server who could write a few words on how these products compare to 
WebObjects.

I would also very appreciate any pointers to information on this subject.
-- 
Rafael K. Kobylinski                               Email: kobylins@in.tum.de
Institut für Informatik                            Tel. : ++ 49 89 289 22391
Technische Universität München                     Cell.: ++ 49 177 7 495020

From michael at stb.nccom.com  Wed Jul  5 09:16:17 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Wed Jul  5 08:16:17 2000
Subject: EOKeyBinding warning - regarding capitalized key
References: <200007040638.XAA04153@scv3.apple.com>
Message-ID: <39635103.BBE395E7@getasia.com>

> In the Java language and NeXT's ObjC conventions, methods and instance
> variables,  begin with lower case. Constants and class names (another kind
> of constant)  begin in uppercase. It makes it easier to just glance at code
> and see what's going on. Without these conventions, a line like this by
> itself is ambiguous:
> 
> Foo.doSomething()
> 
> Is Foo a class or is it a variable that happens to be capitalized.

Ok so far.
 
> KeyValueCoding is a concept that actually is finding support in that new MS
> language and possibly in a future version of the JDK. The idea is to provide
> a general purpose way for objects to exchange data with each other. The
> protocol goes through various steps to push/pull a value... valueForKey
> checks for the presence of accessor methods, a valueForKey method, and
> ultimately an ivar.  It prefers to use the method if present. But to use a
> method it has to use runtime facilities to check for the presence of the
> method. This takes time. If you have a convention for methods used as
> accessors for key value coding, you can perform this faster and perhaps more
> importantly, you can do it more reliably.
> 
> So there are 2 wins: clearer code, and better runtime execution.

And now this argument falls apart. If I know that lowercase means
method, and uppercase means variable, then I can see the sense in what
you are saying.

But that's not how it works. According to key/value, there is no
difference between a variable and a method. Anytime it sees a name, it
has to either (A) just say "It's bad" without doing any checks, or (B)
check the runtime for method or variable.

And yes, (B) takes time. That's why the result of the search is cached
-- so you only pay that price once per item.

Again, what is wrong with saying

NSData *d1, *d2, *d3;
OddJoin *myJoin;

d1 = [myFoo valueForKey: @"IDFoo"];
d2 = [myBar valueForKey: @"IDBar"];
d3 = [myBaz valueForKey: @"IDBaz"];
myJoin = [[OddJoin alloc] init];
[myJoin takeValue: d1 forKey: @"IDFoo"];
[myJoin takeValue: d2 forKey: @"IDBar"];
[myJoin takeValue: d3 forKey: @"IDBaz"];

EOF doesn't deal with 3 sided joins automatically.
If I remember correctly, it was working with event, location, showtime,
and review, as the tables/data. Review could (live stage shows) be
dependent on event and location, or (restaraunts) on time as well
(breakfast specials could be very different from dinners).

Yes, it was a pain.

From mgoodwin at mjgc.net  Wed Jul  5 09:17:52 2000
From: mgoodwin at mjgc.net (Michael Goodwin)
Date: Wed Jul  5 08:17:52 2000
Subject: Instantiating WOComponent with "new" vs. "pageWithName"
Message-ID: <200007051517.IAA00340@scyther.omnigroup.com>

7/5/00 7:54 AM Jonathan Rochkind

>Instantiating a component with pageWithName ought to set the component's 
>context() to be the correct thing. It might do other things too, but I 
>doubt it---I think it's just the context.
>
>Now, WOComponent doesn't seem to have any setContext() method, oddly. So 
>even if you could configure a proper WOContext object, I'm not sure how 
>you'd set it in the component yourself without pageWithName().

One more piece that's missing....

>Really, while you might be able to find some workaround, the WO framework 
>really wants you to use pageWithName().  Is there any reason you can't do 
>the parameterized setup AFTER the instantiation?

It's ugly for one.  You "should" be able to use a parameterized 
constructor to do a clean instantiation.  I was trying to avoid a mess 
with display group reinitialization, etc.  I *hate* hacking in 
workarounds because someone didn't design something properly....

I think it's a MAJOR bug having constructors that you can't use in 
certain cases because they don't do everything they're supposed to.  The 
side effects are bizarre, particularly if you're new to WO.  

Thanks!

Michael

>MyComponent component = (MyComponent) pageWithName("MyComponent");
>component.setupWithParameters(param1, param2, param3);
>return component;
>
>--Jonathan
>
>At 06:53 AM 7/4/2000 -0700, you wrote:
>>Earlier in the year there was some discussion of the fact that
>>instantiating a WOComponent using "new" did not generate the same results
>>as using "pageWithName".  I didn't see any fixes in the list archive.
>>
>>I've been bumping up against this in a couple of cases because I'm trying
>>to do some parameterized initialization and need to use "new".  Comparing
>>2 objects that are supposed to be the same shows that using "new",
>>baseURL, name and path show the component where the instantiation was
>>done instead of the actual component, and there is no session.
>>
>>Does anyone know why this happens, and is there a clean way to "fix" it?
>>
>>One thing that's very strange, is that in a test where I created a temp
>>page with "pageWithName" and then created the real page with "new" (to
>>compare them), the two were identical!  It didn't work if the real page
>>was instantiated first, though.  That may be an effective workaround,
>>although there may be some side effects....
>>
>>Any thoughts or other findings would be greatly appreciated.
>>
>>Happy 4th of July!
>>
>>Michael
>>_______________________________________________
>>WebObjects mailing list
>>WebObjects@omnigroup.com
>>http://www.omnigroup.com/mailman/listinfo/webobjects
>
>
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects

From ehermanson at gofish.com  Wed Jul  5 09:19:28 2000
From: ehermanson at gofish.com (Eric Hermanson)
Date: Wed Jul  5 08:19:28 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
Message-ID: <010901bfe693$ceb1c100$1501aa0a@seafax.com>

This is a multi-part message in MIME format.

------=_NextPart_000_0106_01BFE672.47151F10
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

There is a bug in WO4.5/ProjectBuilder/MacOSXServer where the Find Panel =
hangs when you attempt to perform a search by "Definitions".  This bug =
was "fixed" in 4.0, but it came back in 4.5.  Does anyone know of a =
workaround?

- Eric


------=_NextPart_000_0106_01BFE672.47151F10
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4030.2400" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>There is a bug in =
WO4.5/ProjectBuilder/MacOSXServer=20
where the Find Panel hangs when you attempt to perform a search by=20
"Definitions".&nbsp; This bug was "fixed" in 4.0, but it came back in =
4.5.&nbsp;=20
Does anyone know of a workaround?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>- Eric</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

------=_NextPart_000_0106_01BFE672.47151F10--


From daniel.bleisteiner at metaobject.de  Wed Jul  5 09:33:10 2000
From: daniel.bleisteiner at metaobject.de (Daniel Bleisteiner)
Date: Wed Jul  5 08:33:10 2000
Subject: AW: Two Apps - one Database -> Syncronization?
In-Reply-To: <39623116.89775AC7@solant.com>
Message-ID: <NCBBKDLPPKBGJNNFAGFFAELOCEAA.daniel.bleisteiner@metaobject.de>

We mostly use relations to get objects and therefore i'm not sure where to
look for the actual fetchspec. We tried to set this on the fetchspec of an
early displaygroup we use to get one initial object. We also used isDeep to
refetch all connected objects but it didn't work.

How exactly should we set the fetchspec this way?

Oliver Fox, Daniel Bleisteiner, MetaObject GmbH
-
Oranienburger Strasse 69, 10117 Berlin
Tel: +49-30-285381-10, Fax: +49-30-285381-99


-----Ursprungliche Nachricht-----
Von: webobjects-admin@omnigroup.com
[mailto:webobjects-admin@omnigroup.com]Im Auftrag von Geoff Hopson
Gesendet: Dienstag, 4. Juli 2000 20:47
An: Daniel Bleisteiner
Cc: WebObjects
Betreff: Re: Two Apps - one Database -> Syncronization?


The following method on EOFetchSpecification works well for us in the
same situation:

- (void)setRefreshesRefetchedObjects:(BOOL)refreshesRefetchedObjects;

Set it to YES, and the fetch spec will ignore the snapshot and fetch
your objects directly from the database.

Hope this helps,
Geoff

Daniel Bleisteiner wrote:
>
> Hi,
>
> i just have two different applications running the same database - a
> storefront and the backoffice of a shop. Is it possible to tell the
> storefront to refetch all changed objects from the database on
> session-start?
>
> At this point we need to restart the storefront everytime the backoffice
> changed objects.
>
> Daniel Bleisteiner, MetaObject GmbH
> -
> Oranienburger Strasse 69, 10117 Berlin
> Tel: +49-30-285381-10, Fax: +49-30-285381-99
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects


From wlm at umich.edu  Wed Jul  5 09:43:46 2000
From: wlm at umich.edu (Bill Merrill)
Date: Wed Jul  5 08:43:46 2000
Subject: Making links to show a record
In-Reply-To: <200007051502.IAA28906@scyther.omnigroup.com>
Message-ID: <Pine.LNX.4.10.10007051111010.30332-100000@trip.eecs.umich.edu>

I'm working through my first non-tutorial project with
WebObjects and have run into a problem that I'd appreciate
some help with.

The Getting Started tutorial shows how to generate a list
of records, how to display information from a record in
form fields by clicking on an element in the list, and then
finally, how to go to another page and show even more
information based on your selection.

I'd like to generate a list of records with links that will
directly send the user to a new page with more details
about that record.

So far, I've tried modifying the code generated by the
Wizard for a display selected record component, along with
the "Show Details" code from the Movie example.

In the "Workspace" component a list of components is
generated, and each is linked to this method:

  public WOComponent showDetailsAtOnce() {
    selectObject();
    WOComponent nextPage = pageWithName("PreviewBigIdea");

    EOEnterpriseObject selection =
      (EOEnterpriseObject)bigideaDisplayGroup.selectedObject();

    ((PreviewBigIdea)nextPage).setSelectedBigidea(selection);

    return nextPage;
  }

and here's selectObject:

  public void selectObject() {
    bigideaDisplayGroup.selectObject(bigidea);
  }

PreviewBigIdea bails during the call to setSelectedBigidea.  This is
the code:

  public void setSelectedBigidea(EOEnterpriseObject newSelectedBigidea) {
    selectedBigidea = newSelectedBigidea;
    bigideaDisplayGroup.setMasterObject(newSelectedBigidea);
  }

and this is the dump:

  Uncaught exception: com.apple.yellow.foundation.NSException qualifyWithRelationshipKey:ofObject:: EODatabaseDataSource 0x191dd38 entity BigIdea has no relationship named *nil*
	at PreviewBigIdea.setSelectedBigidea(PreviewBigIdea.java:17)
	at Workspace2.showDetailsAtOnce(Workspace2.java:49)

I don't understand the error, though I'm still trying to figure it out.
If someone has insight into my problem, or can better yet point
me towards a better direction to accomplish my task I'd be
grateful.

Bill Merrill <> wlm@umich.edu <> http://www.eecs.umich.edu/~wlm/
			"If this paradise, I wish I had a lawn-mower" 


From pierce at twinforces.com  Wed Jul  5 09:47:59 2000
From: pierce at twinforces.com (Pierce T. Wetter III)
Date: Wed Jul  5 08:47:59 2000
Subject: Bar charts, pie charts, etc.
In-Reply-To: <7A69F7FAA422D31195DB0000F6AB4EBB029BADCF@msxnyusr02.wins.tiaa-cref.org>
Message-ID: <B588A6A5.5E99%pierce@twinforces.com>

on 7/5/00 7:27 AM, Schneider, Eric at ESchneider@tiaa-cref.org wrote:

> Howdy,
> 
> I'm working on a project that will require dynamic charts.........for
> example a bar chart that shows the effect of inflation over 30
> years......real exciting stuff.
> 
> Has anyone come across any nifty tools that does this and works well with
> WO?  Someone had mentioned JChart....had anyone used that?  Suggestions
> would be greatly appreciated.
> 

 OpenGraph from VVI:  http://www.vvi.com

Pierce


From mmalc at stepwise.com  Wed Jul  5 09:48:55 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Wed Jul  5 08:48:55 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <39635103.BBE395E7@getasia.com>
Message-ID: <B58917BE.95DC%mmalc@stepwise.com>

Michael Gersten wrote:

> And now this argument falls apart. If I know that lowercase means
> method, and uppercase means variable, then I can see the sense in what
> you are saying.
> 
The whole point is that it shouldn't matter if the "variable" is a real ivar
or a method.  And convention states that the class name should start with a
capital letter, so that doesn't leave many options for variables...

> Again, what is wrong with saying
> [...]
> d1 = [myFoo valueForKey: @"IDFoo"];
>
What happens if you have both an ivar IDFoo, and accessor methods
[get]IDFoo() and setIDFoo()?  Is KVC supposed to guess that the accessor
methods actually access IDFoo, or might there be another variable iDFoo?
(Try it in WOBuilder and see what happens.)

I don't see how any different convention would have helped your 3-sided
join?

mmalc.


From daniel.bleisteiner at metaobject.de  Wed Jul  5 10:02:29 2000
From: daniel.bleisteiner at metaobject.de (Daniel Bleisteiner)
Date: Wed Jul  5 09:02:29 2000
Subject: Images with SPACE in filename don't show up in Netscape...
Message-ID: <NCBBKDLPPKBGJNNFAGFFKELOCEAA.daniel.bleisteiner@metaobject.de>

I just discovered that WO doesn't substitute spaces in hrefs with %20 and
therefore Netscape doesn't show images with spaces in their filename.

I could work around this problem using other imagefilenames but i'm
wondering if there is a general switch in WO to do this substitution.

Daniel Bleisteiner, MetaObject GmbH
-
Oranienburger Strasse 69, 10117 Berlin
Tel: +49-30-285381-10, Fax: +49-30-285381-99


From scottc at centricsystems.ca  Wed Jul  5 11:10:25 2000
From: scottc at centricsystems.ca (Scott Corscadden)
Date: Wed Jul  5 10:10:25 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
References: <010901bfe693$ceb1c100$1501aa0a@seafax.com>
Message-ID: <39636BDD.5BCF26F6@centricsystems.ca>

Hmm.. I've got your configuration and I'm able to search by Definitions without a problem.

ScottC

Eric Hermanson wrote:
> 
>    There is a bug in WO4.5/ProjectBuilder/MacOSXServer where the Find Panel hangs when you attempt to perform a search by "Definitions".  This bug was "fixed" in 4.0, but it came back in 4.5.  Does anyone know of a workaround?

From leon at drakeassociates.com  Wed Jul  5 11:15:59 2000
From: leon at drakeassociates.com (Leon Amdour)
Date: Wed Jul  5 10:15:59 2000
Subject: WO and Win2000
Message-ID: <4.3.2.7.1.20000705101537.00b03c80@drakeassociates.com>

Hi, everyone.

Can anyone tell me if WO4.5 works with Win2000, and if it does, are there 
any problems I need to be aware of.
Thanks a lot.
Leon


From beast at thor.running-start.com  Wed Jul  5 11:23:35 2000
From: beast at thor.running-start.com (Jon Eddy)
Date: Wed Jul  5 10:23:35 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
Message-ID: <200007051723.KAA26618@thor.running-start.com>

I've noticed (on 4.0 and 4.5 on OSXS) that the find panel stops  
redrawing sometimes, possibly when you interrupt a search by  
Definition by hitting Stop.  The workaround is to move the window  
around, which forces it to redraw.  Completely irritating, and  
restarting PB seems to be the only way to really fix it.

beast


>
> Hmm.. I've got your configuration and I'm able to search by  
Definitions without a
> problem.
>
> ScottC
>
> Eric Hermanson wrote:
> >
> >    There is a bug in WO4.5/ProjectBuilder/MacOSXServer where the  
Find Panel
> hangs when you attempt to perform a search by "Definitions".  This  
bug was "fixed"
> in 4.0, but it came back in 4.5.  Does anyone know of a workaround? 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
>
>

From bigdog at bulldogbeach.com  Wed Jul  5 11:35:51 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Wed Jul  5 10:35:51 2000
Subject: Multiple framework versions?
In-Reply-To: <200007020252.VAA01794@elmls01.ce.mediaone.net>
Message-ID: <B588BFE2.DD5B%bigdog@bulldogbeach.com>

on 7/1/00 7:48 PM, Todd Thomas at rtthomas@mediaone.net wrote:

>> Is it possible to version an application ("deploy as A/B/C")?
> 
> /Local/Applications/MyApp/Version_1.2/Blah.app
> /Local/Applications/MyApp/Version_1.3/Blah.app :-)
> 
>> ....Or should I just bite the bullet and rename my frameworks every single
>> time I rev them? This is the worst possible option, of course, because I'll
>> have to go through all my .wods and re-set the "framework" parameter on all
>> my woimages, for example. :(
> 
> Where I used to work we had frameworks we deployed across OPENSTEP/Mach and
> OPENSTEP/NT. For both OSes we used paths for versioning... So we had something
> like: 
> 
> /Local/Library/Frameworks/MyStuff/Ver_01/MyFoundation.framework
> Ver_01/MyAppKit.framework
> Ver_02/MyFoundation.framework
> ...etc 
> 
> It worked well on both platforms and you don't have to play around with
> major/minor version number framework stuff.  I also think that would solve any
> of the problems you listed above if they aren't already fixed in 4.5.

This sounds like it should work great, but being a dog of very little brain,
I can't get it to work! :(

I can get everything to build fine (WO 4.5, NT, Java), but at run time my
WOApp just quits with a java classdef class not found error.

Having burned nearly a whole day exploring the mysteries of makefiles and
poring through documentation that dates back to Rhapsody(!), I am now
officially frustrated. Here's what I did, maybe someone can point out my
mistake:

Remove all traces of old frameworks from C:\Apple\Local\Library\Frameworks

For each versioned framework,
    Change "Install In" in the inspector to
        $(LOCAL_LIBRARY_DIR)/Frameworks/MyStuff/Ver_01
    For frameworks which define WOComponents, change
        INSTALLDIR_WEBSERVER in Makefile.preamble to
        $(WEBSERVER_DOCROOT)/WebObjects/Frameworks/MyStuff/Ver_01
    make clean, make install

For each versioned application,
    Change "Install In" to
        $(LOCAL_LIBRARY_DIR)/WebObjects/Applications/MyStuff/Ver_01
    Change INSTALLDIR_WEBSERVER in Makefile.preamble to
        $(WEBSERVER_DOCROOT)/WebObjects/Apps/MyStuff/Ver_01
    make clean, make install

For each application or framework that depends on a versioned framework,
    remove all previous non-versioned frameworks from the project,
    remove C:\Apple\Local\Library\Frameworks from the framework
        search order in the inspector,
    add the versioned frameworks to the project (adding new location to
        framework search order),
    make clean, make install

I also noticed that framework dlls are now being put into
C:\Local\Library\Frameworks\MyStuff\Executables instead of
C:\Local\Library\Executables, so I tried adding that to the system path to
no avail. 

(Also tried simply moving them by hand to me old location to no avail.)

(Also tried setting DYLD_LIBRARY_PATH -- hey, I'm desperate by now :-)

(Also this would appear to defeat the benefit of having versioned
frameworks, right? Shouldn't dlls be put somewhere like
C:\Local\Library\Frameworks\MyStuff\Ver_01\Executables?)

Anyway.... none of this worked, and I'm back to square one. Any suggestions?
What obvious-to-the-experienced configuration tidbit am I missing?

-- 
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
"Fun will now commence." -- Seven of Nine


From schnitz at round1.com  Wed Jul  5 11:38:02 2000
From: schnitz at round1.com (Ray Schnitzler)
Date: Wed Jul  5 10:38:02 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
Message-ID: <F365D2C83704D411A70300B0D02056960C944C@hope.round1.com>

In our experience, it seems that this happens when you start a definition
search by clicking the button.  Searching by hitting <enter> doesn't cause
the problem.  Also, the find panel is not really hung, but the display
doesn't get updated.  As Jon says, moving the window forces a redraw, but so
does changing focus away and back.  The find panel will continue to function
in this broken way until you restart PB.

This also happens (or used to) on NT (if you're unfortunate enough to use
it).

Moral: Don't use the button to start the search - type the text and hit
<enter>.

Ray

> -----Original Message-----
> From: Jon Eddy [mailto:beast@thor.running-start.com]
> Sent: Wednesday, July 05, 2000 10:23 AM
> To: Scott Corscadden
> Cc: webobjects@omnigroup.com
> Subject: Re: Workaround for Annoying ProjectBuilder Definition Search
> Bug?
> 
> 
> I've noticed (on 4.0 and 4.5 on OSXS) that the find panel stops  
> redrawing sometimes, possibly when you interrupt a search by  
> Definition by hitting Stop.  The workaround is to move the window  
> around, which forces it to redraw.  Completely irritating, and  
> restarting PB seems to be the only way to really fix it.
> 
> beast
> 
> 
> >
> > Hmm.. I've got your configuration and I'm able to search by  
> Definitions without a
> > problem.
> >
> > ScottC
> >
> > Eric Hermanson wrote:
> > >
> > >    There is a bug in WO4.5/ProjectBuilder/MacOSXServer where the  
> Find Panel
> > hangs when you attempt to perform a search by "Definitions".  This  
> bug was "fixed"
> > in 4.0, but it came back in 4.5.  Does anyone know of a workaround? 
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
> >
> >
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 

From bigdog at bulldogbeach.com  Wed Jul  5 12:00:44 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Wed Jul  5 11:00:44 2000
Subject: AW: Two Apps - one Database -> Syncronization?
In-Reply-To: <NCBBKDLPPKBGJNNFAGFFAELOCEAA.daniel.bleisteiner@metaobject.de>
Message-ID: <B588C5B9.DD60%bigdog@bulldogbeach.com>

on 7/5/00 8:34 AM, Daniel Bleisteiner at daniel.bleisteiner@metaobject.de
wrote:

> We mostly use relations to get objects and therefore i'm not sure where to
> look for the actual fetchspec. We tried to set this on the fetchspec of an
> early displaygroup we use to get one initial object. We also used isDeep to
> refetch all connected objects but it didn't work.
> 
> How exactly should we set the fetchspec this way?

In that case what you can do is call
    editingContext.invalidateObjectsWithGlobalIDs(
        NSArray globalIDsOfObjectsToInvalidate);

being careful to only invalidate the specific source objects you need
refreshed. This should ensure that related objects are also refreshed.
(There's also an invalidate method which will invalidate everything
everywhere but it's generally way too heavy-handed to use in practice.)

-- 
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
People should come with a well-defined API.


From phil.rankin at athensgroup.com  Wed Jul  5 12:21:28 2000
From: phil.rankin at athensgroup.com (Phil Rankin)
Date: Wed Jul  5 11:21:28 2000
Subject: Java Bridge help needed
Message-ID: <NEBBIMKINEPILPINMEBAIEEGCBAA.phil.rankin@athensgroup.com>

I am new to this WO environment and I am attempting to implement an
Objective-C object that I can subclass with Java.  Where can I find a simple
framework example and Java project example that illustrates this concept?  I
have tried using the document Using the Java Bridge and things are not
working as described.  I have WO 4.5 installed and I am using Windows NT.
Any help or pointers to examples would be greatly appreciated.  Thanks, Phil

===================================
Phil Rankin
Athens Group
An employee-owned consulting firm,
specializing in technology strategy
and custom software development.
http://www.athensgroup.com
===================================



From tthomas at pros.com  Wed Jul  5 12:25:52 2000
From: tthomas at pros.com (Todd Thomas)
Date: Wed Jul  5 11:25:52 2000
Subject: Multiple framework versions?
In-Reply-To: <B588BFE2.DD5B%bigdog@bulldogbeach.com>
Message-ID: <0007051324.AA234731@io>

Gary,

I probably should have mentioned that we'd never done this for WebObjects 
stuff or anything that included Java (though it should be doable).

Your problem could be that when you install a framework it tries to find the 
dll relative to it via ../Executables/MyFramework. So I'd do your versioning 
path higher up such that you have:

/Apple/Local/MyStuff/Ver_01/Frameworks/blah.framework
/Apple/Local/MyStuff/Ver_01/Executables/blah.dll

Then from the framework the dll will be found.
Let me know if this solves it.

todd


Gary Teter <bigdog@bulldogbeach.com> wrote:
> on 7/1/00 7:48 PM, Todd Thomas at rtthomas@mediaone.net wrote:
> 
> >> Is it possible to version an application ("deploy as A/B/C")?
> > 
> > /Local/Applications/MyApp/Version_1.2/Blah.app
> > /Local/Applications/MyApp/Version_1.3/Blah.app :-)
> > 
> >> ....Or should I just bite the bullet and rename my frameworks every 
single
> >> time I rev them? This is the worst possible option, of course, because 
I'll
> >> have to go through all my .wods and re-set the "framework" parameter on 
all
> >> my woimages, for example. :(
> > 
> > Where I used to work we had frameworks we deployed across OPENSTEP/Mach 
and
> > OPENSTEP/NT. For both OSes we used paths for versioning... So we had 
something
> > like: 
> > 
> > /Local/Library/Frameworks/MyStuff/Ver_01/MyFoundation.framework
> > Ver_01/MyAppKit.framework
> > Ver_02/MyFoundation.framework
> > ...etc 
> > 
> > It worked well on both platforms and you don't have to play around with
> > major/minor version number framework stuff.  I also think that would 
solve any
> > of the problems you listed above if they aren't already fixed in 4.5.
> 
> This sounds like it should work great, but being a dog of very little 
brain,
> I can't get it to work! :(
> 
> I can get everything to build fine (WO 4.5, NT, Java), but at run time my
> WOApp just quits with a java classdef class not found error.
> 
> Having burned nearly a whole day exploring the mysteries of makefiles and
> poring through documentation that dates back to Rhapsody(!), I am now
> officially frustrated. Here's what I did, maybe someone can point out my
> mistake:
> 
> Remove all traces of old frameworks from C:\Apple\Local\Library\Frameworks
> 
> For each versioned framework,
>     Change "Install In" in the inspector to
>         $(LOCAL_LIBRARY_DIR)/Frameworks/MyStuff/Ver_01
>     For frameworks which define WOComponents, change
>         INSTALLDIR_WEBSERVER in Makefile.preamble to
>         $(WEBSERVER_DOCROOT)/WebObjects/Frameworks/MyStuff/Ver_01
>     make clean, make install
> 
> For each versioned application,
>     Change "Install In" to
>         $(LOCAL_LIBRARY_DIR)/WebObjects/Applications/MyStuff/Ver_01
>     Change INSTALLDIR_WEBSERVER in Makefile.preamble to
>         $(WEBSERVER_DOCROOT)/WebObjects/Apps/MyStuff/Ver_01
>     make clean, make install
> 
> For each application or framework that depends on a versioned framework,
>     remove all previous non-versioned frameworks from the project,
>     remove C:\Apple\Local\Library\Frameworks from the framework
>         search order in the inspector,
>     add the versioned frameworks to the project (adding new location to
>         framework search order),
>     make clean, make install
> 
> I also noticed that framework dlls are now being put into
> C:\Local\Library\Frameworks\MyStuff\Executables instead of
> C:\Local\Library\Executables, so I tried adding that to the system path to
> no avail. 
> 
> (Also tried simply moving them by hand to me old location to no avail.)
> 
> (Also tried setting DYLD_LIBRARY_PATH -- hey, I'm desperate by now :-)
> 
> (Also this would appear to defeat the benefit of having versioned
> frameworks, right? Shouldn't dlls be put somewhere like
> C:\Local\Library\Frameworks\MyStuff\Ver_01\Executables?)
> 
> Anyway.... none of this worked, and I'm back to square one. Any 
suggestions?
> What obvious-to-the-experienced configuration tidbit am I missing?
> 
> -- 
> Gary Teter, Big Dog
> Bulldog Beach Interactive http://www.bulldogbeach.com
> "Fun will now commence." -- Seven of Nine
> 


---
Todd Thomas
Proactive Software
tthomas@pros.com <NEXTMail/Mime friendly>


From bmarquis at ogse.com  Wed Jul  5 12:58:58 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Wed Jul  5 11:58:58 2000
Subject: unableToSetNilForKey
Message-ID: <CD4FCCD776FDD211986F00A0C9A7094728452E@SBNT4>

I need to be able to override unableToSetNilForKey, but I want the default
behavoir for the fields I'm not checking. I tried
super.unableToSetNilForKey( keyname ); but that method doesn't exist in
EOCustomObject.

    public void unableToSetNilForKey(String keyname) {
        if ( keyname.equals("qty") ) {
            qty = 0;
        } else {
            // not sure what goes here
        }
    }

From j-rochkind at nwu.edu  Wed Jul  5 13:13:40 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 12:13:40 2000
Subject: unableToSetNilForKey
In-Reply-To: <CD4FCCD776FDD211986F00A0C9A7094728452E@SBNT4>
Message-ID: <4.2.2.20000705141011.023d5ed0@hecky.acns.nwu.edu>

I don't know why you can't call the superclass implementation---NSObject is 
SUPPOSED to implement this, and your EO is descended from NSObject, even if 
EOCustomObject doesn't implement the method itself.

But, the default behavior is simply to raise an exception. The 
documentation says it's a NSInvalidArgumentException. But, of course, the 
frameworks have this incredibly bizarre (at least to me) way of setting up 
the class hierarchy/graph for exceptions. So I have no idea how to actually 
create an "NSInvalidArgumentException" to throw (it doesn't have it's own 
Java class in the class browser. Do you create a normal NSException and 
then set it up the right way? I don't know).

Maybe some old school guru can tell you how to properly throw an 
NSInvalidArgumentException in Java. Myself, I'd just do this (bad, but 
it'll work unless you are trying to catch the exception somewhere).

throw new NSException("Invalid argument: Can't take nil value for scalar");

Or whatever.

--Jonathan


At 02:04 PM 7/5/2000 -0500, you wrote:
>I need to be able to override unableToSetNilForKey, but I want the default
>behavoir for the fields I'm not checking. I tried
>super.unableToSetNilForKey( keyname ); but that method doesn't exist in
>EOCustomObject.
>
>     public void unableToSetNilForKey(String keyname) {
>         if ( keyname.equals("qty") ) {
>             qty = 0;
>         } else {
>             // not sure what goes here
>         }
>     }
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From jmiller at ecashtech.com  Wed Jul  5 13:14:24 2000
From: jmiller at ecashtech.com (jmiller@ecashtech.com)
Date: Wed Jul  5 12:14:24 2000
Subject: frameworks ... where are they?
Message-ID: <6FD4D24264E1D311A29A00508B8BC9C112CDD9@MAIL1>

Does anybody know, if there is something like www.woframeworkcentral.com,
where
everybody can post his frameworks and everybody else can search and download
frameworks
(and maybe rate them afterwards)?

<JDream>
Framework ... Use case ... Download URL .... Price (if commercial) ... User
rates
</JDream>

J

From bmarquis at ogse.com  Wed Jul  5 13:29:09 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Wed Jul  5 12:29:09 2000
Subject: unableToSetNilForKey
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284530@SBNT4>

I've made the following changes to my class, but still get the
NSInvalidArgumentException, and the println never gets executed. Wierd. Any
ideas?

    public void unableToSetNullForKey( String keyname ) {
        System.out.println( keyname + "\n" );
        if ( keyname.equals("qty") ) {
            qty = 0;
        } else {
            super.unableToSetNullForKey( keyname );
        }
    }


> -----Original Message-----
> From:	Brian P. Marquis [SMTP:bmarquis@ogse.com]
> Sent:	Wednesday, July 05, 2000 2:05 PM
> To:	Multiple recipients of list (E-mail)
> Subject:	unableToSetNilForKey
> 
> I need to be able to override unableToSetNilForKey, but I want the default
> behavoir for the fields I'm not checking. I tried
> super.unableToSetNilForKey( keyname ); but that method doesn't exist in
> EOCustomObject.
> 
>     public void unableToSetNilForKey(String keyname) {
>         if ( keyname.equals("qty") ) {
>             qty = 0;
>         } else {
>             // not sure what goes here
>         }
>     }
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From jness at greatergood.com  Wed Jul  5 13:35:05 2000
From: jness at greatergood.com (Jonathan Ness)
Date: Wed Jul  5 12:35:05 2000
Subject: How to reference a WO website ?
In-Reply-To: <B5865649.573C%gregory.bernard@groupemultimedia.com>
Message-ID: <0007051234.AA090229@jness>

If you are able to supply arbitrary links to the search engines,
you could certainly have a bunch of direct actions which return
the various pages of your WebObjects application.  

-J

Gregory Bernard <gregory.bernard@groupemultimedia.com> wrote:
> Dear users, 
> 
> 
> How would you proceed to reference a web site that uses WebObjects ?
> 
> The first page of our site is dynamicŠ 
> 
> We've got problem to have a high ranking level on the various search
> engines. 
> 
> 
> Any idea will be welcome.

From jness at greatergood.com  Wed Jul  5 13:39:58 2000
From: jness at greatergood.com (Jonathan Ness)
Date: Wed Jul  5 12:39:58 2000
Subject: Cannot connect to Sybase
In-Reply-To: <39609D3E.E15055FC@bancoval.es>
Message-ID: <0007051239.AA0174812@jness>

I would guess that the machine you're able to connect to using
isql is not the same database/machine your application is trying
to connect to.  Did you turn on -EOAdaptorDebugEnabled YES and
see what database it is trying to hit?

-J

"Carlos Gonzalez Sanchez" <carlos.gonzalez@bancoval.es> wrote:
> I actually can connect using isql from the deployment machine. And the
> connection dictionary has a hostname that is included in the "interfaces" file
> of Sybase.
> 
> For some reason, I think WebObjects does not reach the interfaces file. But I
> have the SYBASE_HOME variable pointing to the right path.
> 
> ¿What else can I try?
> 
> David Andrew Knight wrote:
> 
> > Hi,
> >
> > You wrote:
> > > Error:
> > > EOGeneralAdaptorException
> > > Reason:
> > > Exception occured while evaluating
> > > xxxxxDisplayGroup.qualifyDataSource', on target:<Main 0x401e5df0>:
> > > Sybase: ct_connect(): network packet layer: internal net library
> > > error: Net-Lib protocol driver call to connect two endpoints failed
> > > Socket connect failed - errno 0
> >
> > Have you actually tested you can connect to the database server from the
> > deployment machine ?, using isql or something.
> >
> > Once you can prove the machine can connect to the database server you should
> > then check the EOModel, is the connection dictionary correct, maybe the
> > machine had an alias under NT that is not available on the HP system.
> >
> > ---
> > Regards David Knight    | OneStep Solutions Plc      | Solutions
> >                         |                            | Workstations
> > Innovative Solutions    |     UK phone: 01702 426400 | Servers
> > For MacOS X, Windows NT |          fax: 01702 426420 | Security
> > OPENSTEP and Solaris    | Int'l prefix: +44 1702     | Networks
> > using Yellow Box and    |                            | Maintenance
> > WebObjects technologies | http://www.onestep.co.uk   | Support
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 

From chill at global-village.net  Wed Jul  5 13:42:26 2000
From: chill at global-village.net (Chuck Hill)
Date: Wed Jul  5 12:42:26 2000
Subject: unableToSetNilForKey
References: <CD4FCCD776FDD211986F00A0C9A70947284530@SBNT4>
Message-ID: <39638FE8.24003C5B@global-village.net>

Notice

>     public void unableToSetNullForKey( String keyname ) {
                             ^^^^
> > I need to be able to override unableToSetNilForKey, but I want the default
                                             ^^^

Change it to 
     public void unableToSetNilForKey( String keyname ) {
and you may be much happier!

Chuck



"Brian P. Marquis" wrote:
> 
> I've made the following changes to my class, but still get the
> NSInvalidArgumentException, and the println never gets executed. Wierd. Any
> ideas?
> 
>     public void unableToSetNullForKey( String keyname ) {
>         System.out.println( keyname + "\n" );
>         if ( keyname.equals("qty") ) {
>             qty = 0;
>         } else {
>             super.unableToSetNullForKey( keyname );
>         }
>     }
> 
> > -----Original Message-----
> > From: Brian P. Marquis [SMTP:bmarquis@ogse.com]
> > Sent: Wednesday, July 05, 2000 2:05 PM
> > To:   Multiple recipients of list (E-mail)
> > Subject:      unableToSetNilForKey
> >
> > I need to be able to override unableToSetNilForKey, but I want the default
> > behavoir for the fields I'm not checking. I tried
> > super.unableToSetNilForKey( keyname ); but that method doesn't exist in
> > EOCustomObject.
> >
> >     public void unableToSetNilForKey(String keyname) {
> >         if ( keyname.equals("qty") ) {
> >             qty = 0;
> >         } else {
> >             // not sure what goes here
> >         }
> >     }
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

--

Chuck Hill                                 chill@global-village.net
Global Village Consulting Inc.             http://www.global-village.net

From bigdog at bulldogbeach.com  Wed Jul  5 13:48:15 2000
From: bigdog at bulldogbeach.com (Gary Teter)
Date: Wed Jul  5 12:48:15 2000
Subject: Multiple framework versions?
In-Reply-To: <0007051324.AA234731@io>
Message-ID: <B588DEED.DD7B%bigdog@bulldogbeach.com>

on 7/5/00 11:24 AM, Todd Thomas at tthomas@pros.com wrote:

> Gary,
> 
> I probably should have mentioned that we'd never done this for WebObjects
> stuff or anything that included Java (though it should be doable).
> 
> Your problem could be that when you install a framework it tries to find the
> dll relative to it via ../Executables/MyFramework. So I'd do your versioning
> path higher up such that you have:
> 
> /Apple/Local/MyStuff/Ver_01/Frameworks/blah.framework
> /Apple/Local/MyStuff/Ver_01/Executables/blah.dll
> 
> Then from the framework the dll will be found.
> Let me know if this solves it.

Unfortunately, no. I can't figure out how to get the app to see the
frameworks built in the new location:

> Running 'MyStuffDemo.woa'...

Jul  05 12:40:04 MyStuff Demo[329] *** <WOApplicationMain>: Cannot
initialize because:
java/lang/NoClassDefFoundError: MyApplication
Stack Trace:
java.lang.NoClassDefFoundError: MyApplication

> Finished running 'MyStuffDemo.woa'

The frustrating part is that I'm sure there's one silly option to pass to
the linker, or set in a plist, or something, somewhere that will fix
this....

--
Gary Teter, Big Dog
Bulldog Beach Interactive http://www.bulldogbeach.com
That's nothing a really big hammer wouldn't fix.


From jness at greatergood.com  Wed Jul  5 14:01:11 2000
From: jness at greatergood.com (Jonathan Ness)
Date: Wed Jul  5 13:01:11 2000
Subject: Two Apps - one Database -> Syncronization?
In-Reply-To: <00ae01bfe604$1da9ace0$1501aa0a@seafax.com>
Message-ID: <0007051259.AA4668013@jness>

Yeah, on our WOF-driven storefront, we have a recache direct 
action which must be hit manually when someone changes an item
in the backoffice.  It works fine and is way easier than 
implementing a change notification framework...

-J

"Eric Hermanson" <ehermanson@gofish.com> wrote:
> WebObjects already has a form of distributed notification -- it's called
> HTTP!  Why not just send a direct action containing archived versions of the
> global ID's of changed object(s) to all apps registered in Monitor (e.g.
> MyApp.woa/1, MyApp.woa/2, etc).  The direct action handlers for all of the
> registered apps can then invalidate the corresponding EO's in their private
> object stores.
> 
> There are several useful classes in WO4.5 that you can use/subclass to get
> this to work:
> 
> WODirectAction
> WORequestHandler
> WOMessage/WORequest/WOResponse
> WOHTTPConnection
> 
> I guess you could also write a distributed EOObjectStore that acted as the
> parent object store for all apps, but that might be way too slow.
> 
> - Eric
> 
> 
> 
> ----- Original Message -----
> From: "Paul R. Summermatter" <paulrs@lgs-systems.com>
> To: "'Daniel Bleisteiner'" <daniel.bleisteiner@metaobject.de>
> Cc: <webobjects@omnigroup.com>
> Sent: Tuesday, July 04, 2000 3:43 PM
> Subject: RE: Two Apps - one Database -> Syncronization?
> 
> 
> > Daniel et al,
> >
> > <soapbox>
> >
> > This is a major issue that needs addressing by Apple.  Many of us
> > who have dealt with large projects or projects which require up to the
> > second data synchronization have endeavored to build various flavors of
> > distributed notification servers to deal with this problem (I've done this
> > twice now, once in objective-c and once in java).  While I have tremendous
> > respect for Eric Noyeau and I have yet to read his latest treatise on this
> > subject, I respectfully diagree with him on the subject of distributed
> > notification, and I truly believe that some form of distributed
> notification
> > is the appropriate solution for this problem.  That is, everytime an
> object
> > is inserted/updated/deleted in one app instance, all other interested app
> > instances are immediately notified of this modification in the object
> graph.
> > Many web app server vendors offer this as a feature, and I think WOF would
> > greatly benefit from some sort of real time synchronization
> implementation.
> > Further, I think the synchornization mechanism should be opensourced so
> that
> > we may all contribute to its feature set.
> >
> > </soapbox>
> >
> > Regards,
> > Paul
> >
> > [ -----Original Message-----
> > [ From: Daniel Bleisteiner [mailto:daniel.bleisteiner@metaobject.de]
> > [ Sent: Tuesday, July 04, 2000 2:37 PM
> > [ To: WebObjects
> > [ Subject: Two Apps - one Database -> Syncronization?
> > [
> > [
> > [ Hi,
> > [
> > [ i just have two different applications running the same database - a
> > [ storefront and the backoffice of a shop. Is it possible to tell the
> > [ storefront to refetch all changed objects from the database on
> > [ session-start?
> > [
> > [ At this point we need to restart the storefront everytime the
> > [ backoffice
> > [ changed objects.
> > [
> > [ Daniel Bleisteiner, MetaObject GmbH
> > [ -
> > [ Oranienburger Strasse 69, 10117 Berlin
> > [ Tel: +49-30-285381-10, Fax: +49-30-285381-99
> > [
> > [ _______________________________________________
> > [ WebObjects mailing list
> > [ WebObjects@omnigroup.com
> > [ http://www.omnigroup.com/mailman/listinfo/webobjects
> > [
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 

From jness at greatergood.com  Wed Jul  5 14:09:46 2000
From: jness at greatergood.com (Jonathan Ness)
Date: Wed Jul  5 13:09:46 2000
Subject: WO with B2C ?
In-Reply-To: <002c01bfe68e$d7802fb0$4201010a@VIRTUAL>
Message-ID: <0007051308.AA4747114@jness>

--PopOver-2.0.150-962827727-2
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RunningStart makes a WebObjects commerce engine which
sounds like what you want.  It doesn't suck.  

http://www.runningstart.com/solutions/ecommerce.html

-J

"Mariano Barcia" <Mariano.Barcia@teknoland.com> wrote:
> [962827516_16.html][Mariano Eugenio Barcia.vcf]
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RunningStart makes a WebObjects commerce engine which

sounds like what you want.  It doesn't suck.  


http://www.runningstart.com/solutions/ecommerce.html


-J


"Mariano Barcia" <<Mariano.Barcia@teknoland.com> wrote:

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From pmaric at codestorm.com  Wed Jul  5 14:14:27 2000
From: pmaric at codestorm.com (Pero Maric)
Date: Wed Jul  5 13:14:27 2000
Subject: Scheduling fix for 4.5 in Java
Message-ID: <39639804.CB10CA7A@codestorm.com>

Greetings,

I have discovered a fix for 4.5 scheduling in Obj-C, (Archive)  but I
haven't the faintest idea on how to apply this fix
to java.   If anyone has successfully implemented this fix in java, then
I would be more than pleased
if he/she would share it with the newsgroup.

M.T.I.A

- Pero




From brian at fortnocs.com  Wed Jul  5 14:19:41 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 13:19:41 2000
Subject: Monitor not working
Message-ID: <3.0.6.32.20000705132857.01352c20@mailhost.fortnocs.com>

Monitor ( or any other WO app ) will not respond through the normal means: 

http://host.domain/scirpts/WebObjects.dll/app

but will respond by connecting to it directly on the port it's running on.
When I point a browser to port 1085, I can see:

XMLConfigDoc component: 
<?xml version="1.0" encoding="ASCII"?>

<adaptor transport="nbsocket" scheduler="roundrobin">
    
    

    <application name="Monitor">
        <instance port="1072" host="scylla" id="-1"/>
    </application>
    
</adaptor>

and in my siteconf file, I see my applications registered with wotaskd, so
I figure wotaskd is working correctly.  When I connect directly to the
adaptor, I get a response, but there are no applications listed.

Setup:

Dual proc PIII-500 w/ 2x9GB UW disks, and 512MB RAM.  NT Certified HP
NetServer.

Windows NT 4.0 SP6a,  IIS 4.0 w/ recent hotfixes.
WebObjects 4.5 with deployment license.

Any suggestions?

  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From pierce at twinforces.com  Wed Jul  5 14:46:54 2000
From: pierce at twinforces.com (Pierce T. Wetter III)
Date: Wed Jul  5 13:46:54 2000
Subject: Monitor not working
In-Reply-To: <3.0.6.32.20000705132857.01352c20@mailhost.fortnocs.com>
Message-ID: <B588ECA2.5F19%pierce@twinforces.com>

on 7/5/00 1:28 PM, Brian Wotring at brian@fortnocs.com wrote:

> 
> Monitor ( or any other WO app ) will not respond through the normal means:
> 
> http://host.domain/scirpts/WebObjects.dll/app
> 
> but will respond by connecting to it directly on the port it's running on.
> When I point a browser to port 1085, I can see:
> 
> XMLConfigDoc component:
> <?xml version="1.0" encoding="ASCII"?>
> 
> <adaptor transport="nbsocket" scheduler="roundrobin">
> 
> 
> 
> <application name="Monitor">
> <instance port="1072" host="scylla" id="-1"/>
> </application>
> 
> </adaptor>
> 
> and in my siteconf file, I see my applications registered with wotaskd, so
> I figure wotaskd is working correctly.  When I connect directly to the
> adaptor, I get a response, but there are no applications listed.

  What does 

  http://host.domain/scrirpts/WebObjects.dll/xyzzy  say?

 Pierce


From j-rochkind at nwu.edu  Wed Jul  5 14:52:16 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 13:52:16 2000
Subject: techniques for logging out?
Message-ID: <4.2.2.20000705155259.023f74e8@hecky.acns.nwu.edu>

The user clicks on a 'logout' button. I want to deallocate their session 
and return some nice neutral component to them that doesn't cause a new 
session to be allocated (or cause their session that I told to terminate to 
stick around!).

Are there any tricks to doing this? Do I need to use direct actions at all? 
What's up?

--Jonathan



From brian at fortnocs.com  Wed Jul  5 14:53:38 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 13:53:38 2000
Subject: Monitor not working
In-Reply-To: <B588ECA2.5F19%pierce@twinforces.com>
References: <3.0.6.32.20000705132857.01352c20@mailhost.fortnocs.com>
Message-ID: <3.0.6.32.20000705140247.01352c20@mailhost.fortnocs.com>

>  What does 
>
>  http://host.domain/scrirpts/WebObjects.dll/xyzzy  say?

Server Adaptor:

Server = IIS
WebObjects Server Adaptor version = 4.5
WebObjects Configuration URI(s) = C:/TEMP//WebObjects.xml next(-962830342)
Load balancing algorithms = (random, roundrobin, loadaverage)
Transports = (winsock, socket, nbsocket)


Available applications:

-NONE-


Request headers:
AUTH_TYPE: 
GATEWAY_INTERFACE: CGI/1.1
HTTP_ACCEPT_LANGUAGE: en-us
HTTP_USER_AGENT: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
HTTPS: off
HTTPS_KEYSIZE: 
HTTPS_SECRETKEYSIZE: 
PATH_INFO: /xyzzy
PATH_TRANSLATED: C:\Inetpub\wwwroot\xyzzy
QUERY_STRING: 
REMOTE_ADDR: 195.97.253.4
REMOTE_HOST: 195.97.253.4
REMOTE_USER: 
SCRIPT_NAME: /scripts/WebObjects.dll
SERVER_NAME: scylla.fortnocs.com
SERVER_PORT: 80
SERVER_PROTOCOL: HTTP/1.1
SERVER_SOFTWARE: Microsoft-IIS/4.0
REQUEST_METHOD: GET

  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From rklems at running-start.com  Wed Jul  5 15:03:47 2000
From: rklems at running-start.com (Ryan R. Klems)
Date: Wed Jul  5 14:03:47 2000
Subject: techniques for logging out?
References: <4.2.2.20000705155259.023f74e8@hecky.acns.nwu.edu>
Message-ID: <3963A27F.C95E59C0@running-start.com>

I've done this in the past by terminating the session and returning a
WORedirect...

- (WOComponent *) logout
{
	WOComponent *redirect;

	[[self session] terminate];
	redirect = [self pageWithName: @"WORedirect"];
	[redirect setURL: <Where to go>];
	return redirect;
}

Jonathan Rochkind wrote:
> 
> The user clicks on a 'logout' button. I want to deallocate their session
> and return some nice neutral component to them that doesn't cause a new
> session to be allocated (or cause their session that I told to terminate to
> stick around!).
> 
> Are there any tricks to doing this? Do I need to use direct actions at all?
> What's up?
> 
> --Jonathan
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

-- 
Ryan R. Klems
Senior Software Engineer
Running Start, Inc.
(520)-547-4265
rklems@running-start.com
http://www.running-start.com

From jmiller at ecashtech.com  Wed Jul  5 15:10:25 2000
From: jmiller at ecashtech.com (jmiller@ecashtech.com)
Date: Wed Jul  5 14:10:25 2000
Subject: techniques for logging out?
Message-ID: <6FD4D24264E1D311A29A00508B8BC9C112CDDB@MAIL1>

You can return a Logout-component and call session.terminate()
within its sleep()-method.
J

-----Original Message-----
From: Jonathan Rochkind [mailto:j-rochkind@nwu.edu]
Sent: Wednesday, July 05, 2000 1:54 PM
To: webobjects@omnigroup.com
Subject: techniques for logging out?


The user clicks on a 'logout' button. I want to deallocate their session 
and return some nice neutral component to them that doesn't cause a new 
session to be allocated (or cause their session that I told to terminate to 
stick around!).

Are there any tricks to doing this? Do I need to use direct actions at all? 
What's up?

--Jonathan


_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects

From pierce at twinforces.com  Wed Jul  5 15:10:51 2000
From: pierce at twinforces.com (Pierce T. Wetter III)
Date: Wed Jul  5 14:10:51 2000
Subject: Monitor not working
In-Reply-To: <3.0.6.32.20000705140247.01352c20@mailhost.fortnocs.com>
Message-ID: <B588F248.5F22%pierce@twinforces.com>

on 7/5/00 2:02 PM, Brian Wotring at brian@fortnocs.com wrote:

> WebObjects Configuration URI(s) = C:/TEMP//WebObjects.xml next(-962830342)


  That's not pointing at wotaskd, that's pointing at an XML file! (that
probably doesn't exist.)

  Your adaptor configuration is messed up, that's why you can't see apps.

  I'll let you take it from here, I don't know how to config the IIS adaptor
off the top of my head, but setting it to http://localhost:1085 will work
for a start.

 Pierce


From j-rochkind at nwu.edu  Wed Jul  5 15:18:12 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 14:18:12 2000
Subject: "unable to begin a transaction"
Message-ID: <4.2.2.20000705161829.023db968@hecky.acns.nwu.edu>

With 4.5 and the ODBC adaptor (installed with 4.5), I'm getting the "unable 
to begin a transaction within a transaction" exception. I haven't yet 
figured out how to reproduce this, it just shows up from time to time.

Has anyone else seen this? It sounds kind of like an adaptor bug, but I 
just installed 4.5.

--Jonathan



From dempseyj at apple.com  Wed Jul  5 15:18:42 2000
From: dempseyj at apple.com (James Dempsey)
Date: Wed Jul  5 14:18:42 2000
Subject: techniques for logging out?
In-Reply-To: <4.2.2.20000705155259.023f74e8@hecky.acns.nwu.edu>
Message-ID: <B588F31D.9220%dempseyj@apple.com>

It should be the case that calling terminate() on the session anywhere
within the request-response loop will allow the current request response
loop to complete, allowing a component to return one last HTML page to the
user.

If you wish the last page to be completely outside of the the WebObjects
application (a static page not generated by a component) you could use a
WORedirect.  Note that WORedirect is a subclass of WOComponent, so this is
just a specific application of the general idea.

Of course, if you wish, you could put a link to the "front door URL" of your
application on that last component so users can click to start a new session
and "buy more things" or "login again", or whatever.

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Jonathan Rochkind <j-rochkind@nwu.edu>
> Date: Wed, 05 Jul 2000 15:54:00 -0500
> To: webobjects@omnigroup.com
> Subject: techniques for logging out?
> 
> The user clicks on a 'logout' button. I want to deallocate their session
> and return some nice neutral component to them that doesn't cause a new
> session to be allocated (or cause their session that I told to terminate to
> stick around!).
> 
> Are there any tricks to doing this? Do I need to use direct actions at all?
> What's up?
> 
> --Jonathan
> 
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From patrice at mac.com  Wed Jul  5 15:19:40 2000
From: patrice at mac.com (Patrice Gautier)
Date: Wed Jul  5 14:19:40 2000
Subject: techniques for logging out?
In-Reply-To: <3963A27F.C95E59C0@running-start.com>
Message-ID: <B588F33C.1CFC%patrice@mac.com>

for extra points, use a direct action; this way clicking on 'logout' can
never result in 'your session has timed out..'

    -P



> From: "Ryan R. Klems" <rklems@running-start.com>
> Date: Wed, 05 Jul 2000 14:02:55 -0700
> To: Jonathan Rochkind <j-rochkind@nwu.edu>
> Cc: webobjects@omnigroup.com
> Subject: Re: techniques for logging out?
> 
> I've done this in the past by terminating the session and returning a
> WORedirect...
> 
> - (WOComponent *) logout
> {
> WOComponent *redirect;
> 
> [[self session] terminate];
> redirect = [self pageWithName: @"WORedirect"];
> [redirect setURL: <Where to go>];
> return redirect;
> }
> 
> Jonathan Rochkind wrote:
>> 
>> The user clicks on a 'logout' button. I want to deallocate their session
>> and return some nice neutral component to them that doesn't cause a new
>> session to be allocated (or cause their session that I told to terminate to
>> stick around!).
>> 
>> Are there any tricks to doing this? Do I need to use direct actions at all?
>> What's up?
>> 
>> --Jonathan
>> 
>> _______________________________________________
>> WebObjects mailing list
>> WebObjects@omnigroup.com
>> http://www.omnigroup.com/mailman/listinfo/webobjects
> 
> -- 
> Ryan R. Klems
> Senior Software Engineer
> Running Start, Inc.
> (520)-547-4265
> rklems@running-start.com
> http://www.running-start.com
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From jgrant at mail.ardesic.com  Wed Jul  5 15:25:11 2000
From: jgrant at mail.ardesic.com (Jeff Grant)
Date: Wed Jul  5 14:25:11 2000
Subject: Strange behaviour - wonder what I did?
Message-ID: <B5891FED.F4A%jgrant@mail.ardesic.com>

Hey everyone;

    Well, I've really done it this time.  Does anyone out there understand
what's happening when the browser's refresh button is being pressed?  In my
app (which works fine otherwise), if a user presses that button, it returns
a specific page, which is NOT the page they were on (unless of course they
are on that given page) Which is a WOComponent, but not Main.  I've checked
all my actions that return that page (no luck).  I'm assuming this is a
NavBar/Template kind of thing, but what could I have done?  Is there some
sort of default behaviour that I may have set/not set?

Any suggestions would be greatly appreciated.

Jeff Grant


From michael at stb.nccom.com  Wed Jul  5 15:36:57 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Wed Jul  5 14:36:57 2000
Subject: EOKeyBinding warning - regarding capitalized key
References: <B58917BE.95DC%mmalc@stepwise.com>
Message-ID: <3963AA39.74FF745C@getasia.com>


mmalcolm crawford wrote:
> 
> Michael Gersten wrote:
> 
> > And now this argument falls apart. If I know that lowercase means
> > method, and uppercase means variable, then I can see the sense in what
> > you are saying.
> >
> The whole point is that it shouldn't matter if the "variable" is a real ivar
> or a method.  And convention states that the class name should start with a
> capital letter, so that doesn't leave many options for variables...

Again, I miss the point. If the convention is that uppercase is class name, and
the key/value protocol code says "I know this is a class name, not a variable or
method", then the code can't do anything -- keyvalue isn't defined for operation
on a class. It does operations on an instance.
 
> > Again, what is wrong with saying
> > [...]
> > d1 = [myFoo valueForKey: @"IDFoo"];
> >
> What happens if you have both an ivar IDFoo, and accessor methods
> [get]IDFoo() and setIDFoo()?  Is KVC supposed to guess that the accessor
> methods actually access IDFoo, or might there be another variable iDFoo?
> (Try it in WOBuilder and see what happens.)

Well, since it's valueForKey, it first uses getIDFoo(). If not found, it uses ID

Oh, I see.

The key/value code doesn't know if it should look for a variable named "IDFoo"
or "iDFoo".

So your concern, and the apparent reason that it doesn't work, is that instead
of making two
passes through the variables, one looking for iDFoo, and one looking for IDFoo
(and caching the result so that next time it is fast), it only makes one pass,
and then aborts when not found.

Hmm.

If that is the case, then Apple should document it as "Uppercase names will not
work without explicit accessor methods; ivars are not found", rather than "This
will print a warning message".

Michael

From lux at umich.edu  Wed Jul  5 15:44:39 2000
From: lux at umich.edu (Joshua 'Tool User' Marker)
Date: Wed Jul  5 14:44:39 2000
Subject: Versioning with frameworks
Message-ID: <Pine.SOL.4.10.10007051716120.25255-100000@battlezone.gpcc.itd.umich.edu>


	I'm trying to implement multiple versions of our frameworks with
java wrappers and a wo app (and a partridge in a pear tree). 

	I have Framework F, java, wrapped around Framework/Lib L, Obj C.
These install into Frameworks/F/Versions/A and lib_lA.o or whatever.  This
works handily, though Apple's make system clobbers old versions so I have
to move them in by hand. (or, 'by script' anyway.)

	However, 'Current' always gets set, no matter how I set the
install make files. I have a set of scripts that toggle 'current' to point
to A or B versions and this works great, I can _build_ fine. The problem
is that at run time, my apps look not at the version they were built with,
but at the version _then_ pointed to by the symbolic link 'current'. 

	This sucks.

	Further, if I remove the 'current' symlink (which shouldn't matter
- after all, they're building against the version I specify, not
'Current') - I can't generate the classpath properly on my java
frameworks.

	Any suggestions for what to do here? 

--- Joshua * San Francisco: 415 / 505.9406 (37.753083N -122.430501W)
    Future site of beautiful San Andreas Canyon!
You live longer once you realize that any time spent being unhappy is
wasted.  -- Ruth E. Renkl
---



From j-rochkind at nwu.edu  Wed Jul  5 15:47:37 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Wed Jul  5 14:47:37 2000
Subject: EOKeyBinding warning - regarding capitalized key
In-Reply-To: <3963AA39.74FF745C@getasia.com>
References: <B58917BE.95DC%mmalc@stepwise.com>
Message-ID: <4.2.2.20000705164442.023f82d8@hecky.acns.nwu.edu>

I actually HAVE experienced instability with upper case keys and key value 
coding.
I don't know why---apparently, key value coding uses some algorithm we 
haven't yet guessed for reasons we dont' understand which actually DOES 
result in crashes.

I used to do
WORedirect redirect;
redirect.takeValueForKey("http:/adfd", "URL");

This is even one of Apple's own reusable components, and it is even 
documented to have a key named "URL".  Since it's API isn't documented 
beyond binding keys, I thought this was the best way to deal with it.

However, my application actually was crashing right at this point for 
reasons that appeared to be due to the capital-U key. Not predictably every 
time, even more odd, but just sometimes. Changing it to the undocumented 
redirect.setURL("http://adfadf"); got rid of the crashes.

So, Apple's run time warning which warns that capital-letter keys may lead 
to infinite loops and other instability should apparently be taken at it's 
word. It may lead to such things.

WHY, I have no idea. I don't understand what the big problem with uppercase 
keys would be either. Those of you who apparently find this an engrossing 
issue are free to continue to speculate on that.

--Jonathan

At 04:35 PM 7/5/2000 -0500, you wrote:


>mmalcolm crawford wrote:
> >
> > Michael Gersten wrote:
> >
> > > And now this argument falls apart. If I know that lowercase means
> > > method, and uppercase means variable, then I can see the sense in what
> > > you are saying.
> > >
> > The whole point is that it shouldn't matter if the "variable" is a real 
> ivar
> > or a method.  And convention states that the class name should start with a
> > capital letter, so that doesn't leave many options for variables...
>
>Again, I miss the point. If the convention is that uppercase is class 
>name, and
>the key/value protocol code says "I know this is a class name, not a 
>variable or
>method", then the code can't do anything -- keyvalue isn't defined for 
>operation
>on a class. It does operations on an instance.
>
> > > Again, what is wrong with saying
> > > [...]
> > > d1 = [myFoo valueForKey: @"IDFoo"];
> > >
> > What happens if you have both an ivar IDFoo, and accessor methods
> > [get]IDFoo() and setIDFoo()?  Is KVC supposed to guess that the accessor
> > methods actually access IDFoo, or might there be another variable iDFoo?
> > (Try it in WOBuilder and see what happens.)
>
>Well, since it's valueForKey, it first uses getIDFoo(). If not found, it 
>uses ID
>
>Oh, I see.
>
>The key/value code doesn't know if it should look for a variable named "IDFoo"
>or "iDFoo".
>
>So your concern, and the apparent reason that it doesn't work, is that instead
>of making two
>passes through the variables, one looking for iDFoo, and one looking for IDFoo
>(and caching the result so that next time it is fast), it only makes one pass,
>and then aborts when not found.
>
>Hmm.
>
>If that is the case, then Apple should document it as "Uppercase names 
>will not
>work without explicit accessor methods; ivars are not found", rather than 
>"This
>will print a warning message".
>
>Michael
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From ed at leafe.com  Wed Jul  5 15:51:22 2000
From: ed at leafe.com (Ed Leafe)
Date: Wed Jul  5 14:51:22 2000
Subject: EOKeyBinding warning - regarding capitalized key
Message-ID: <S.0000403225@leafe.com>

On 7/5/2000 5:35 PM, Michael Gersten supposedly said:

>Well, since it's valueForKey, it first uses getIDFoo(). If not found, it 
>uses ID
>
>Oh, I see.
>
>The key/value code doesn't know if it should look for a variable named 
>"IDFoo"
>or "iDFoo".
>
>So your concern, and the apparent reason that it doesn't work, is that 
>instead
>of making two
>passes through the variables, one looking for iDFoo, and one looking for 
>IDFoo
>(and caching the result so that next time it is fast), it only makes one 
>pass,
>and then aborts when not found.

     What if you have two ivars, one named iDFoo, and one named IDFoo. 
For that matter, let's say you have others named IDFOO, idfoo, IdFoO, 
etc. Which do you pick? Sure, no one in their right mind would do such a 
thing, but it certainly is allowable by the language.

     I don't think your multiple pass alternative is viable. The only 
alternative to enforcing a naming convention is to provide no ability to 
resolve accessor methods.




      ___/
     /
    __/
   /
  ____/
  Ed Leafe
  http://leafe.com/


From bbum at codefab.com  Wed Jul  5 16:17:18 2000
From: bbum at codefab.com (Bill Bumgarner)
Date: Wed Jul  5 15:17:18 2000
Subject: Multiple framework versions?
Message-ID: <200007052217.e65MH9d25883@bjork.codefab.com>

WO 4.5 changes the way frameworks "executables" are handled.   In particular,  
the dylibs are no longer found in the framework.  Instead, they are found  
somewhere on LD_LIBRARY_PATH -- typically, /opt/Apple/Library/Executables or  
/opt/Apple/Local/Library/Executables.   Basically, 4.5 fixes the static path  
problem in the linker-- that is, when something is linked, it no longer sticks  
the absolute path to the dylib into the executable.   This allows the dylibs to  
be moved around at will [as long as you update the environment variables  
correctly].

Example:  Under WO 4.5, ldd of Monitor yields:

      libXML.so.A =>   /opt/Apple/Library/Executables/libXML.so.A
        libMonitor.so.A =>       /opt/Apple/Library/Executables/libMonitor.so.A
        libWOExtensions.so.A =>  /opt/Apple/Library/Executables/libWOExtensions.so.A
        libWebObjects.so.A =>    /opt/Apple/Library/Executables/libWebObjects.so.A
        libEOAccess.so.B =>      /opt/Apple/Library/Executables/libEOAccess.so.B
        libEOControl.so.B =>     /opt/Apple/Library/Executables/libEOControl.so.B
        libFoundation.so.C =>    /opt/Apple/Library/Executables/libFoundation.so.C
        libMultiScript.so.A =>   /opt/Apple/Library/Executables/libMultiScript.so.A
        libpdo.so =>     /opt/Apple/Library/Executables/libpdo.so
        libnsl.so.1 =>   /lib/libnsl.so.1
        libthread.so.1 =>        /lib/libthread.so.1
        libsocket.so.1 =>        /lib/libsocket.so.1
        libc.so.1 =>     /lib/libc.so.1
        libm.so.1 =>     /lib/libm.so.1
        libdl.so.1 =>    /lib/libdl.so.1
        libmp.so.2 =>    /lib/libmp.so.2
        /usr/platform/SUNW,Ultra-250/lib/libc_psr.so.1

Under WO 4.0, it yields:

    /opt/Apple/Library/PrivateFrameworks/Monitor.framework/Versions/A/Monitor
        /opt/Apple/Library/Frameworks/WOExtensions.framework/Versions/A/WOExtensions
        /opt/Apple/Library/Frameworks/WebObjects.framework/Versions/A/WebObjects
        /opt/Apple/Library/Frameworks/EOAccess.framework/Versions/B/EOAccess
        /opt/Apple/Library/Frameworks/EOControl.framework/Versions/B/EOControl
        /opt/Apple/Library/Frameworks/Foundation.framework/Versions/C/Foundation
         
/opt/Apple/Library/PrivateFrameworks/MultiScript.framework/Versions/A/MultiScript
        libpdo.so =>     /usr/lib/libpdo.so
        libnsl.so.1 =>   /usr/lib/libnsl.so.1
        libthread.so.1 =>        /usr/lib/libthread.so.1
        libsocket.so.1 =>        /usr/lib/libsocket.so.1
        libc.so.1 =>     /usr/lib/libc.so.1
        libm.so.1 =>     /usr/lib/libm.so.1
        libdl.so.1 =>    /usr/lib/libdl.so.1
        libmp.so.2 =>    /usr/lib/libmp.so.2

The 4.5 output basically indicates that Monitor requires a dylib named  
libWebObjects.so.A-- the dyanmic linker found said dylib at  
/opt/Apple/Library/Executables/libWebObjects.so.A.   The 4.0 output indicates  
that the Monitor was linked against a dylib that MUST be found at  
/opt/Apple/Library/Frameworks/WebObjects.framework/Versions/A/WebObjects.

So, under 4.0, simply changing the framework search path and rebuilding the  
project would yield a viable binary regardless of where the frameworks were  
installed, but with the stipulation that the frameworks *cannot be moved*.

Under 4.5, you must change LD_LIBRARY_PATH to reflect where the symbolic link  
to the framework binary is-- i.e. where the symbolic link is typically  
installed.

b.bum



From dneumann at apple.com  Wed Jul  5 16:30:52 2000
From: dneumann at apple.com (David Neumann)
Date: Wed Jul  5 15:30:52 2000
Subject: Bar charts, pie charts, etc.
Message-ID: <200007052230.PAA14626@scv1.apple.com>

On the server there is always the Plot.framework, the example is in script
but that shouldn't stop you from using it. It gens GIFs.

Also a cool charting technology from Corda that can emit flash for
interesting looking and yet low bandwidth stuff.  Pat Homelvig from
http://www.whitewolf.com created a framework to make using Corda's stuff
much easier from within a WOApp.

d

----------
>From: "Schneider, Eric" <ESchneider@tiaa-cref.org>
>To: webobjects@omnigroup.com
>Subject: Bar charts, pie charts, etc.
>Date: Wed, Jul 5, 2000, 9:27 AM
>

> Howdy,
>
> I'm working on a project that will require dynamic charts.........for
> example a bar chart that shows the effect of inflation over 30
> years......real exciting stuff.
>
> Has anyone come across any nifty tools that does this and works well with
> WO?  Someone had mentioned JChart....had anyone used that?  Suggestions
> would be greatly appreciated.
>
> Thanks,
> Eric.
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From bmarquis at ogse.com  Wed Jul  5 16:32:43 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Wed Jul  5 15:32:43 2000
Subject: Date -> NSGregorianDate
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284537@SBNT4>

This is easier:

NSGregorianDate date = new NSGregorianDate(javaDate.getTime());

-----------------------------------
Brian Marquis
Internet Programmer
Orion Group Software Engineers
219-233-3401   Fax: 219-239-3348
http://www.ogse.com
mailto:bmarquis@ogse.com
-----------------------------------


> -----Original Message-----
> From:	Paul R. Summermatter [SMTP:paulrs@lgs-systems.com]
> Sent:	Tuesday, July 04, 2000 7:44 AM
> To:	'Brian Wotring'
> Cc:	'webobjects@omnigroup.com'
> Subject:	RE: Date -> NSGregorianDate
> 
> Brian,
> 
> 	A com.apple.client.foundation.NSGregorianDate or a
> com.apple.yellow.foundation.NSGregorianDate?  If the latter, you ought to
> be
> able to do something like:
> 
> NSGregorianDate date = new NSGregorianDate(javaDate.getYear(),
> javaDate.getMonth(), javaDate.getDay(), javaDate.getMinute(),
> javaDate.getSecond(), new NSTimeZone(javaDate.getTimezoneOffset()));
> 
> (NB. I have not tested this code and there may be differences in
> java.util.Date's returning values in seconds/milliseconds and
> NSGregorianDate expecting arguments in seconds/milliseconds)
> 
> 	If it's the former, NSGregorianDate is just a wrapper around a
> java.util.Date, so conversion is trivial.
> 
> Regards,
> Paul
> 
> [ -----Original Message-----
> [ From: Brian Wotring [mailto:brian@fortnocs.com]
> [ Sent: Monday, July 03, 2000 10:59 PM
> [ To: webobjects@omnigroup.com
> [ Subject: Date -> NSGregorianDate
> [ 
> [ 
> [ 
> [ I have a Java class that has no WO code at all in it and I 
> [ need to convert
> [ it's date() member and convert it into an NSGregorianDate object.
> [ 
> [ Suggesstions?
> [ 
> [ 
> [ 
> [   |  Brian Wotring  ( brian@fortnocs.com )
> [   |  Fort Nocs, Inc.
> [   |  PGP Key ID: 0x9674763D
> [ _______________________________________________
> [ WebObjects mailing list
> [ WebObjects@omnigroup.com
> [ http://www.omnigroup.com/mailman/listinfo/webobjects
> [ 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From brian at fortnocs.com  Wed Jul  5 16:43:56 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 15:43:56 2000
Subject: EONullValue
Message-ID: <3.0.6.32.20000705155312.01352c20@mailhost.fortnocs.com>

When creating a qualifier like:

EOQualifier q = EOQualifier.qualifierWithQualifierFormat( "some_int_field =
....

how is a null value specified so that the qualifier only allows fields with
that key having a null value ?



  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From rklems at running-start.com  Wed Jul  5 16:49:46 2000
From: rklems at running-start.com (Ryan R. Klems)
Date: Wed Jul  5 15:49:46 2000
Subject: EONullValue
References: <3.0.6.32.20000705155312.01352c20@mailhost.fortnocs.com>
Message-ID: <3963BB58.B06C5570@running-start.com>

Well, in ObjC you do "xxx = nil" and I would assume its the same in
java, but it may be "xxx = null"

-Ryan

Brian Wotring wrote:
> 
> When creating a qualifier like:
> 
> EOQualifier q = EOQualifier.qualifierWithQualifierFormat( "some_int_field =
> ....
> 
> how is a null value specified so that the qualifier only allows fields with
> that key having a null value ?
> 
>   |  Brian Wotring  ( brian@fortnocs.com )
>   |  Fort Nocs, Inc.
>   |  PGP Key ID: 0x9674763D
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

-- 
Ryan R. Klems
Senior Software Engineer
Running Start, Inc.
(520)-547-4265
rklems@running-start.com
http://www.running-start.com

From brian at fortnocs.com  Wed Jul  5 16:53:26 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 15:53:26 2000
Subject: EONullValue
In-Reply-To: <3963BB58.B06C5570@running-start.com>
References: <3.0.6.32.20000705155312.01352c20@mailhost.fortnocs.com>
Message-ID: <3.0.6.32.20000705160225.01352c20@mailhost.fortnocs.com>

>Well, in ObjC you do "xxx = nil" and I would assume its the same in
>java, but it may be "xxx = null"

Well, that was my first guess, though, it did not work, says 'null' isn't a
valid key.



  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From joshua at medicalhost.com  Wed Jul  5 16:54:06 2000
From: joshua at medicalhost.com (Tool User)
Date: Wed Jul  5 15:54:06 2000
Subject: NSGregorianDate gregorianUnitsSinceDate() problem in Java
In-Reply-To: <200007031453.QAA10870@mindseal.comm2000.it>
Message-ID: <0007051553.AA436002@yak>


> I  compute the difference between two dates in days with these lines  
> of code:
> 
> 
> 	NSGregorianDate myStartDate // assume this exists
> 	NSGregorianDate myStopDate // assume this exists
> 

	<snip>

> method hangs and, after a bit, the MacOSX starts swapping, as it was  
> recursively calling
> something.

	If you watch the objects being created and GCed there (say, by turning off GC. . . . ;-) ) you'll see that this method sometimes fails to return! True story. I've filed a bug on this.

	I ended up doing it myself, the tacky way - creating lots of intermediate objects in a tight memory loop. (As it turns, this is how Apple does it, too, apparently.) 

From dneumann at apple.com  Wed Jul  5 17:51:11 2000
From: dneumann at apple.com (David Neumann)
Date: Wed Jul  5 16:51:11 2000
Subject: AW: Two Apps - one Database -> Syncronization?
Message-ID: <200007052350.QAA28320@scv1.apple.com>

If you want the latest destination objects, then you want to refault the EO,
that will force the rels on that EO to become faults and reconstitute
themselves.

Note that I had thought that the EOF in 4.5 would do a attribute refresh  on
not just the the root object fetched but all related objects in all
relationships specified in the array you pass to the fetch spec with
setPrefetchingRelatonshipKeyPaths ... this is an array of strings. The
strings are relationship names. Mainly intended to allow for custom deep
fetching down relationships. For example consider fetching Movies... You
want not only the movie table info, but you KNOW you also want the Studio
AND the Actors of the Movies. The hints on such a fetch might be:
("studio", "actors")
Now in 4.0 if the refreshes flag were on, this would only refresh previously
fetched Movie objects; snapshot data would be used to populate the studios
and actors fetched.  4.5 should use the latest values from the database
instead. The hints give you an ability to basically invalidate and refresh a
wedge in the object graph.

d

PS: Note that the isDeep thing on a fetch spec referes to fetching root
objects in terms of *inheritence* not compositional relations (which is the
norm). For example... LaserDiscs and VideoTape both inherit from MovieMedia.
So when you fetch MovieMedias, do you just get MovieMedias, or do you also
get LaserDiscs and VideoTape. isDeep says got get me all of them.

d

----------
>From: Daniel Bleisteiner <daniel.bleisteiner@metaobject.de>
>To: WebObjects <webobjects@omnigroup.com>
>Subject: AW: Two Apps - one Database -> Syncronization?
>Date: Wed, Jul 5, 2000, 10:34 AM
>

> We mostly use relations to get objects and therefore i'm not sure where to
> look for the actual fetchspec. We tried to set this on the fetchspec of an
> early displaygroup we use to get one initial object. We also used isDeep to
> refetch all connected objects but it didn't work.
>
> How exactly should we set the fetchspec this way?
>
> Oliver Fox, Daniel Bleisteiner, MetaObject GmbH
> -
> Oranienburger Strasse 69, 10117 Berlin
> Tel: +49-30-285381-10, Fax: +49-30-285381-99
>
>
> -----Ursprungliche Nachricht-----
> Von: webobjects-admin@omnigroup.com
> [mailto:webobjects-admin@omnigroup.com]Im Auftrag von Geoff Hopson
> Gesendet: Dienstag, 4. Juli 2000 20:47
> An: Daniel Bleisteiner
> Cc: WebObjects
> Betreff: Re: Two Apps - one Database -> Syncronization?
>
>
> The following method on EOFetchSpecification works well for us in the
> same situation:
>
> - (void)setRefreshesRefetchedObjects:(BOOL)refreshesRefetchedObjects;
>
> Set it to YES, and the fetch spec will ignore the snapshot and fetch
> your objects directly from the database.
>
> Hope this helps,
> Geoff
>
> Daniel Bleisteiner wrote:
>>
>> Hi,
>>
>> i just have two different applications running the same database - a
>> storefront and the backoffice of a shop. Is it possible to tell the
>> storefront to refetch all changed objects from the database on
>> session-start?
>>
>> At this point we need to restart the storefront everytime the backoffice
>> changed objects.
>>
>> Daniel Bleisteiner, MetaObject GmbH
>> -
>> Oranienburger Strasse 69, 10117 Berlin
>> Tel: +49-30-285381-10, Fax: +49-30-285381-99
>>
>> _______________________________________________
>> WebObjects mailing list
>> WebObjects@omnigroup.com
>> http://www.omnigroup.com/mailman/listinfo/webobjects
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From michael at stb.nccom.com  Wed Jul  5 17:53:54 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Wed Jul  5 16:53:54 2000
Subject: EOKeyBinding warning - regarding capitalized key
References: <S.0000403225@leafe.com>
Message-ID: <3963CA50.4A2DAE63@getasia.com>

> >So your concern, and the apparent reason that it doesn't work, is that
> >instead
> >of making two
> >passes through the variables, one looking for iDFoo, and one looking for
> >IDFoo
> >(and caching the result so that next time it is fast), it only makes one
> >pass,
> >and then aborts when not found.
> 
>      What if you have two ivars, one named iDFoo, and one named IDFoo.
> For that matter, let's say you have others named IDFOO, idfoo, IdFoO,
> etc. Which do you pick? Sure, no one in their right mind would do such a
> thing, but it certainly is allowable by the language.

Simple: Only 'IDFoo' will be used by [obj valueForKey: @"IDFoo"]

The only time it ever becomes an issue is that both "IDFoo" and "iDFoo" will
have the same "setIDFoo" accessor.

Remember, a method named "setIDFoo" knows what it will set; the only ambiguity
is that two different variables have the same name for custom set accessors.

I was mistaken when I said earlier that this would be the problem. It isn't.
When it looks for, and does not find setIDFoo:, it still has the original passed
string, @"IDFoo", so it has no ambiguity for what ivar to use.

It has a known method name to look for, a known ivar name, etc.

So we are back to the question: why not allow it? At the very least, if it
worked before, why not allow it to keep on working now?

From dempseyj at apple.com  Wed Jul  5 17:57:45 2000
From: dempseyj at apple.com (James Dempsey)
Date: Wed Jul  5 16:57:45 2000
Subject: EONullValue
In-Reply-To: <3.0.6.32.20000705160225.01352c20@mailhost.fortnocs.com>
Message-ID: <B5891866.9238%dempseyj@apple.com>

In Java do something like this:

// build an array with object arguments for your qualifier string
// In this case one argument the EONullValue object
NSArray qualifierArgs = new NSArray(EONullValue.nullValue());


// Build a qualifier just like usual using qualifier with qualifier format
EOQualifier q = 
    EOQualifier.qualifierWithQualifierFormat
            ( "some_int_field = %@", qualifierArgs);


That should cover it for you.

-James

-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Brian Wotring <brian@fortnocs.com>
> Date: Wed, 05 Jul 2000 16:02:25 -0700
> To: "Ryan R. Klems" <rklems@running-start.com>
> Cc: webobjects@omnigroup.com
> Subject: Re: EONullValue
> 
> 
>> Well, in ObjC you do "xxx = nil" and I would assume its the same in
>> java, but it may be "xxx = null"
> 
> Well, that was my first guess, though, it did not work, says 'null' isn't a
> valid key.
> 
> 
> 
> |  Brian Wotring  ( brian@fortnocs.com )
> |  Fort Nocs, Inc.
> |  PGP Key ID: 0x9674763D
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From dneumann at apple.com  Wed Jul  5 18:08:30 2000
From: dneumann at apple.com (David Neumann)
Date: Wed Jul  5 17:08:30 2000
Subject: unableToSetNilForKey
Message-ID: <200007060008.RAA01390@scv1.apple.com>

Actaully in Java you want to override and call super on a different 
method... since nil is an ObjC thing, null was used here in the name. I
suppose it was a tradeoff of one kind of consistency for another:

    public void unableToSetNullForKey(String keyname) {


----------
>From: "Brian P. Marquis" <bmarquis@ogse.com>
>To: "Multiple recipients of list (E-mail)" <webobjects@omnigroup.com>
>Subject: unableToSetNilForKey
>Date: Wed, Jul 5, 2000, 2:04 PM
>

> I need to be able to override unableToSetNilForKey, but I want the default
> behavoir for the fields I'm not checking. I tried
> super.unableToSetNilForKey( keyname ); but that method doesn't exist in
> EOCustomObject.
>
>     public void unableToSetNilForKey(String keyname) {
>         if ( keyname.equals("qty") ) {
>             qty = 0;
>         } else {
>             // not sure what goes here
>         }
>     }
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From hoffhines at apple.com  Wed Jul  5 18:23:59 2000
From: hoffhines at apple.com (Michael Hoffhines)
Date: Wed Jul  5 17:23:59 2000
Subject: Bar charts, pie charts, etc.
Message-ID: <002501bfe6e0$693ef660$c622c511@apple.com>

This is a multi-part message in MIME format.

------=_NextPart_000_0021_01BFE6A5.BCBFEC30
Content-Type: multipart/alternative;
	boundary="----=_NextPart_001_0022_01BFE6A5.BCBFEC30"


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Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

ReportMill works well with WO and generates charts and flash=20
in addition to pdf. Free demo download at http://www.reportmill.com

>From: "Schneider, Eric" <ESchneider@tiaa-cref.org>
>Subject: Bar charts, pie charts, etc.

> Howdy,
>
> I'm working on a project that will require dynamic charts.........for
> example a bar chart that shows the effect of inflation over 30
> years......real exciting stuff.



------=_NextPart_001_0022_01BFE6A5.BCBFEC30
Content-Type: text/html;
	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>ReportMill works well with WO and generates charts =
and flash=20
</FONT></DIV>
<DIV><FONT size=3D2>in addition to pdf. Free demo download at <A=20
href=3D"http://www.reportmill.com">http://www.reportmill.com</A></FONT></=
DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>&gt;From: "Schneider, Eric" &lt;<A=20
href=3D"mailto:ESchneider@tiaa-cref.org">ESchneider@tiaa-cref.org</A>&gt;=
<BR>&gt;Subject:=20
Bar charts, pie charts, etc.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>&gt; Howdy,<BR>&gt;<BR>&gt; I'm working on a project =
that will=20
require dynamic charts.........for<BR>&gt; example a bar chart that =
shows the=20
effect of inflation over 30<BR>&gt; years......real exciting=20
stuff.<BR></FONT></DIV>
<DIV><FONT size=3D2>&nbsp;</DIV></FONT></BODY></HTML>

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	filename="Michael A. Hoffhines.vcf"

BEGIN:VCARD
VERSION:2.1
N:Hoffhines;Michael;A.
FN:Michael A. Hoffhines
NICKNAME:Mike
ORG:Apple Computer, Inc.
TITLE:Developer Trainer
TEL;WORK;VOICE:408 974 2889
TEL;WORK;FAX:408 974 3612
ADR;WORK:;;1 Infinite Loop MS: 38-ET;Cupertino;CA;95014;USA
LABEL;WORK;ENCODING=3DQUOTED-PRINTABLE:1 Infinite Loop MS: =
38-ET=3D0D=3D0ACupertino, CA 95014=3D0D=3D0AUSA
ADR;HOME:;;1658 Nord Lane;San Jose;CA;95125;USA
LABEL;HOME;ENCODING=3DQUOTED-PRINTABLE:1658 Nord Lane=3D0D=3D0ASan Jose, =
CA 95125=3D0D=3D0AUSA
X-WAB-GENDER:2
EMAIL;PREF;INTERNET:hoffhines@apple.com
REV:20000706T002330Z
END:VCARD

------=_NextPart_000_0021_01BFE6A5.BCBFEC30--


From brian at fortnocs.com  Wed Jul  5 18:31:36 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 17:31:36 2000
Subject: Monitor not working
In-Reply-To: <200007060021.RAA03333@scv1.apple.com>
Message-ID: <3.0.6.32.20000705174051.01352c20@mailhost.fortnocs.com>

>what do you see when you look at this in the browser:
>http://localhost:1085 ?
>If you see your app listed then it is the adaptor being unable to get info
>from wotaskd.  

Yep, that's my problem.

>For the ISAPI adaptor there is a registry entry documented in
>the Deployment Docs you might want to edit to point at your wotaskd.  If
>CGI, then there is a similarly named env variable to fill out.

I have read the docs, and they speak of a registry entry CONF_URL which
seems to make no difference at all.




  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From brian at fortnocs.com  Wed Jul  5 18:59:44 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 17:59:44 2000
Subject: Monitor not working
In-Reply-To: <200007060046.RAA25512@scv3.apple.com>
Message-ID: <3.0.6.32.20000705180902.01352c20@mailhost.fortnocs.com>

At 07:45 PM 7/5/2000 -0500, you wrote:
>Did you create your CONF_URL entry beneath HKEY_LOCAL_MACHINE?
>In Apple/WebObjects/Configuration?
>Of type REG_SZ?
>With a value of:  "http://localhost:1085"?
>Then restart IIS?

Yes, that works, thanks all.



  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From brian at fortnocs.com  Wed Jul  5 19:20:01 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Wed Jul  5 18:20:01 2000
Subject: headers
Message-ID: <3.0.6.32.20000705182920.012f6af0@mailhost.fortnocs.com>

Hopefully somebody can help me with this.  I have been unable to allow
custom headers into a WO app deployed on an NT box, using the IIS adaptor.

I've modified the httpheaders.h and added "myheader", to the http_headers[]
array. Compiled the adaptor, and placed the new WebObjects.dll in the
/scripts directory, and rebooted the box.

Is this the only steps necessary to allow a header, "myheader" for example,
through to the application?  When I print out the headers dictionary, I do
not see the header coming through when sent.

In addition, I have tried adding "HTTP_myheader" to the array.  Same result.

Any help will be appreciated, thanks.




  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From stuart at selenium.com.au  Wed Jul  5 22:20:03 2000
From: stuart at selenium.com.au (Stuart Parker)
Date: Wed Jul  5 21:20:03 2000
Subject: WOMail can't determine IP error message
Message-ID: <200007060419.OAA01572@dev3.selenium.com.au>

Hi there,
	I've just implemented WOMail in one of apps. It worked fine  
until we threw the system behind a firewall, and now it gives a  
"Can't determine IP address of host:" message.
	I can do a nslookup of the host name and get a response, so  
I think that WOMail uses a different mechanism to determine an ip  
address from a dns name. Would anyone have an idea of how it does  
this? I've tried using the IP address instead of the domain name, but  
it can't convert an ip address (as string) into an ip address.

Thanks,
Stuart Parker
Selenium Interactive


From ehermanson at gofish.com  Wed Jul  5 23:08:41 2000
From: ehermanson at gofish.com (Eric Hermanson)
Date: Wed Jul  5 22:08:41 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
References: <F365D2C83704D411A70300B0D02056960C944C@hope.round1.com>
Message-ID: <01d601bfe707$d37fab10$93941f18@quark>

----- Original Message -----
From: "Ray Schnitzler" <schnitz@round1.com>

> In our experience, it seems that this happens when you start a definition
> search by clicking the button.  Searching by hitting <enter> doesn't cause
> the problem.

That's not my experience.  For me, the find panel eventually gets 'hosed'
regardless of whether I use the button or just hit return to initiate
"Definition" search.  I'm using a 500 Mhz G4, WO4.5, mainly searching Obj-C.
Maybe it works for Java files, and not Obj-C, and that's why I'm seeing the
problems while others are not?

- Eric



From leon at drakeassociates.com  Wed Jul  5 23:17:50 2000
From: leon at drakeassociates.com (Leon Amdour)
Date: Wed Jul  5 22:17:50 2000
Subject: Cascade delete
Message-ID: <4.3.2.7.1.20000705221442.00b09c80@drakeassociates.com>

Hi, all.

It seems that cascade delete doesn't work the way I expected it to. I have 
an optional one-to-many relationship betwen two tables. Main table owns 
destination. When I delete  record in the main table records in destination 
don't get deleted (it does work for a one-to-one mandatory relationship).
Could I be doing something wrong, or doesn't cascade work for optional 
relationships?

Thanks.
Leon


From dneumann at apple.com  Wed Jul  5 23:49:06 2000
From: dneumann at apple.com (David Neumann)
Date: Wed Jul  5 22:49:06 2000
Subject: headers
Message-ID: <200007060548.WAA08338@scv1.apple.com>

I'm no HTTP guru and could be wrong, but I don't think you can necessarily
control what headers a web server interface passes to you. For example, NES
3.6's CGI interface does not pass the "authorization" header but its NSAPI
does.  You can certainly return any headers you please and these seem to
make it to the client regardless. If the ISAPI interface is not passing
"myheader" then there's nothing you can do really... except look for some
undocumented feature in the ISAPI that does the trick for you.

d



----------
>From: Brian Wotring <brian@fortnocs.com>
>To: webobjects@omnigroup.com
>Subject: headers
>Date: Wed, Jul 5, 2000, 8:29 PM
>

>
> Hopefully somebody can help me with this.  I have been unable to allow
> custom headers into a WO app deployed on an NT box, using the IIS adaptor.
>
> I've modified the httpheaders.h and added "myheader", to the http_headers[]
> array. Compiled the adaptor, and placed the new WebObjects.dll in the
> /scripts directory, and rebooted the box.
>
> Is this the only steps necessary to allow a header, "myheader" for example,
> through to the application?  When I print out the headers dictionary, I do
> not see the header coming through when sent.
>
> In addition, I have tried adding "HTTP_myheader" to the array.  Same result.
>
> Any help will be appreciated, thanks.
>
>
>
>
>   |  Brian Wotring  ( brian@fortnocs.com )
>   |  Fort Nocs, Inc.
>   |  PGP Key ID: 0x9674763D
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From mve at cerebri.com  Thu Jul  6 00:06:35 2000
From: mve at cerebri.com (Matthias Vetsch)
Date: Wed Jul  5 23:06:35 2000
Subject: EOAdaptor for DB2?
Message-ID: <005801bfe718$af7958e0$0200a8c0@access.ch>

This is a multi-part message in MIME format.

------=_NextPart_000_0055_01BFE721.0EBA7160
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I'd like to use a DB2 database installed on AS/400. Does anyone know =
whether an EOAdaptor for DB2 exists and where I can get it?
Thanks,
Matthias =20

------=_NextPart_000_0055_01BFE721.0EBA7160
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#d8d0c8>
<DIV><FONT face=3DArial size=3D2>I'd like&nbsp;to use a DB2 database =
installed on=20
AS/400. Does anyone know whether an EOAdaptor for DB2 exists and =
where&nbsp;I=20
can get it?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Matthias =
</FONT>&nbsp;</DIV></BODY></HTML>

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From brendan at clickspace.com  Thu Jul  6 00:08:53 2000
From: brendan at clickspace.com (Brendan Duddridge)
Date: Wed Jul  5 23:08:53 2000
Subject: Parent to Child component communication
In-Reply-To: <200007052352.QAA08993@scyther.omnigroup.com>
Message-ID: <B5897E8F.3B12%brendan@clickspace.com>

Hi,

Ok, so I know a child component can invoke a parent's action method. But how
do you make a parent invoke a child's action method?

I'm creating a generic Address Information component that has a method to
validate its contents, but has no widget to invoke that action. I'd like the
parent component to invoke that action.

I'm doing this because I want to use the Address Information component in
more than one page, but those other pages can have additional form elements
that need to be submitted along with the child's form elements.

So I'd like to have the parent call the child component's validateInput()
method. The validateInput() method sets an attribute isValidInput on the
child which is bound to the parent's isValid() method. Then the parent will
know if the child's input is valid (ie, all required form values have been
specified, the user isn't entering a duplicate record into the database,
etc.)

If the child's input is valid, then the parent can proceed to validate it's
own form values.

Is this possible? If so, how do you do it?

Or should I scrap that idea and re-work my components so that I don't have
parent form values on the same component as a child component?

I was just trying to re-use the same form on more than one component.


Thanks for the help,

 
Brendan Duddridge
ClickSpace Interactive Inc.
Calgary, AB
Canada
http://www.clickspace.com/


From milliken at ricochet.net  Thu Jul  6 00:34:34 2000
From: milliken at ricochet.net (Seth Milliken)
Date: Wed Jul  5 23:34:34 2000
Subject: _scope selector not recognized
Message-ID: <p04310101b589d66cc145@[63.194.86.57]>

I've just deployed a WO 4.5 application on Mac OS X Server 1.2. The 
app is running fine, but I've been having a bit of trouble getting 
Monitor to work. When I launch Monitor, the first page comes up fine, 
but if I do anything at all, it throws an exception.

Here are two exceptions representative of my problems:

Exception while evaluating WebScript expression [super 
appendToResponse:aResponse inContext:aContext]:
<WOComponent>: Cannot initialize because:
*** -[WOCollapsibleComponentContent _scope]: selector not recognized


Exception occured while evaluating 'hostList', on target:<HostsPage 0x29ba78>:
*** -[HostsPage _scope]: selector not recognized

Does anyone recognize these symptoms as indicative of an obvious 
mistake I've made?
-- 
_____________________________________________________
  Seth Milliken              milliken@ricochet.net
  San Francisco              PGP Public Key Available
_____________________________________________________

From Malte Tancred <malte at oops.se>  Thu Jul  6 01:15:27 2000
From: Malte Tancred <malte at oops.se> (Malte Tancred)
Date: Thu Jul  6 00:15:27 2000
Subject: Deny Delete Rule ignored on some relationships
Message-ID: <auto-000000282307@oops.se>

Hi!

Posted this question on the eof list some days ago. No answer
as of yet so I'll try here as well...

/M

Begin forwarded message:

From: Malte Tancred <malte@oops.se>
Date: 2000-06-30 13:09:44 +0200
To: eof@omnigroup.com
Subject: Deny Delete Rule ignored on some relationships

Hi!

Our problem:
Deny delete rule in a 1-n relationship in some cases does
not work if the relation is an array fault, ie the objects
pointed to by the relationship is not fetched yet.


Case description

The two basic entities involved: Folder and FolderItem. Folder
has two relationships, subfolders (to-many to Folder) and items
(to-many to FolderItem). Both entities are abstract.


The Folder entity

For the Folder entity there exists several concrete sub-entities/
subclasses, all of which are stored in the same table in the database.


The FolderItem entity

The FolderItem entity has a different setup than Folder. There are
several abstract sub-entities/subclasses to FolderItem, which in turn
have several concrete sub-entities/subclasses. The concrete entities
are stored in separate tables in the database.

The 'middle-layer' is simply there to narrow down the SELECTs for a
specific category of folder items.


Delete rules

In Folder, if the delete rule for the relationship 'subfolders' is
set to DENY in the concrete sub-entities to Folder everything works
as expected. Ie trying to delete a folder which has subfolders is not
allowed.

If the same DENY rule is set on the 'items' relationship than it is
possible to remove a folder if the items are not already fetched, ie
'items' points to an array fault.

If we trigger the array fault before deletion of the folder (by issuing
a [[folder items] self] call) then the rule works as expected - the
folder cannot be deleted.

Has anyone experienced similar problems?

Cheerio,
Malte

--
Malte Tancred, Oops AB
malte@oops.se
http://www.oops.se

From clread at mindspring.com  Thu Jul  6 02:33:44 2000
From: clread at mindspring.com (Charles L. Read)
Date: Thu Jul  6 01:33:44 2000
Subject: managing software downloads on a storefront
Message-ID: <87puorwzcz.fsf@mindspring.com>

How do people manage (and restrict) software downloads
on a web-site through WebObjects?

I would prefer *not* to put downloadable files
under DocumentRoot.  So, is there some way I
can push the downloadable files when someone
presses a link?

Regards,
-- 
Charles L. Read <charles_read@hotmail.com>
PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65

From centro at altera.it  Thu Jul  6 03:00:57 2000
From: centro at altera.it (Matteo Centro)
Date: Thu Jul  6 02:00:57 2000
Subject: WOPopUpButton Values
Message-ID: <p04320402b589f8cdeed4@[192.168.2.102]>

Hi all,

I need WOPopUpButton to generate a <SELECT><OPTION> html tag with 
controllable Value Fields, WO usually assigns Values automatically 
starting from 0.
How can I change this behaviour?

Just to explain better, now I have

<SELECT name="6.1">
<OPTION value="0">Coke</OPTION>
<OPTION value="1">Pepsi</OPTION>
<OPTION value="2">Orange Juice</OPTION>
<OPTION value="3">Water</OPTION>

And I need to do

<SELECT name="6.1">
<OPTION value="CC">Coke</OPTION>
<OPTION value="PP">Pepsi</OPTION>
<OPTION value="OJ">Orange Juice</OPTION>
<OPTION value="WA">Water</OPTION>


Is there an easy way to do this?


Thanks,



Matteo

From clread at mindspring.com  Thu Jul  6 03:04:14 2000
From: clread at mindspring.com (Charles L. Read)
Date: Thu Jul  6 02:04:14 2000
Subject: simple DB query
Message-ID: <87n1jvwxy8.fsf@mindspring.com>

How is a simple DB query done within WO?
Eg, in SQL:

  select * from Customer where emailAddr="myString";

-- 
Charles L. Read <charles_read@hotmail.com>
PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65

From chionhwe at fudge.dhs.org  Thu Jul  6 03:19:08 2000
From: chionhwe at fudge.dhs.org (Chionh Wei Peng)
Date: Thu Jul  6 02:19:08 2000
Subject: Servelet-based WOAdaptor
Message-ID: <39644F46.1298A019@fudge.dhs.org>

Hi,

This may sound kind of weird but I am wondering if anyone has developed
a WOAdaptor that can be loaded as a Servelet. I need it to integrate a
WO app for a customer who wants to run it using a Servelet interface.

Thanks!

Wei Peng


From m.paulus at coss.de  Thu Jul  6 03:32:36 2000
From: m.paulus at coss.de (Michael Paulus)
Date: Thu Jul  6 02:32:36 2000
Subject: Problems with large WOResponse objects
Message-ID: <00Jul6.112652gmt+0100.27777@gateway.coss.de>

I have a problem with WO 4.01 patch 2 under NT/IIS. If a WOResponse contains
a large content field (> 8 MB), I'm often getting "Invalid response received
from application". If this happens, the WOAdaptor log file contains
following message:

	Info: Request GET
/scripts/WebObjects.exe/MyApplication.woa/1/wa/getDocument HTTP/1.1 sent,
awaiting response
	Error: WSARecvEx() failed: No error
	Error: Invalid response!

It seems that someone has closed my socket connection between the WOAdaptor
and the application. The probability of this behaviour increases with memory
usage (especially if virtual memory will be used).

It is possible to reproduce this problem with a small test application I
have written. This application adds a NSData with x MB to a WOResponse
during the request-response loop. To waste memory and to enforce swapping in
this way, I store all created NSData objects in a vector. After several
request-response loops, the test system produces the described invalid
response message.

Any suggestions/ideas?

Thanks
  Michael

--
Michael Paulus <m.paulus@coss.de>


From centro at altera.it  Thu Jul  6 03:49:19 2000
From: centro at altera.it (Matteo Centro)
Date: Thu Jul  6 02:49:19 2000
Subject: WOPopUpButton Values
In-Reply-To: <p04320402b589f8cdeed4@[192.168.2.102]>
References: <p04320402b589f8cdeed4@[192.168.2.102]>
Message-ID: <p04320405b58a06411812@[192.168.2.102]>

Please forget my previous posting... I solved the problem!


Thanks


Matteo


From garrick.mcfarlane at linklaters.com  Thu Jul  6 04:07:17 2000
From: garrick.mcfarlane at linklaters.com (McFarlane, Garrick)
Date: Thu Jul  6 03:07:17 2000
Subject: headers
Message-ID: <4FB25AF6938BD3119BD60000D11AF7C401CE2887@alopex03.europe.linklaters.com>

Brian, Dave --

I've been learning a little more than I'd like to about ISAPI/IIS/WOAdaptor
lately. The problem you mention here is the second of two serious bugs 
I've encountered in ISAPI in a fortnight. What amazes me is that they
have persisted this long. Sadly, one gets kind of used to bugs in WO
because much as its popularity is increasing, it's still a relatively
niche product. But I don't expect to find that sort of thing with 
Microsoft/IIS/Windows -- call me naive -- but I thought 100 billion
happy developers around the world were using it.

Anyway, and this is what you really want to know:

-- the ISAPI call to retrieve a named header doesn't seem
   to work for certain custom headers. Despite what the
   ISAPI documentation says. This call is GetServerVariable
   with a named key.

-- there is a special key you can supply to GetServerVariable
   named "ALL_HTTP". This will populate a buffer you supply
   with all the headers received -- not just those known about
   or requested. You can then parse this for the info you're
   looking for.

-- once you've found the info you're looking for, pass it to
   the WOAdaptor's req_addStaticHeader function to force it
   down into the WORequest from the adaptor.

-- (because of the ISAPI bug, there's no point in adding
    the key to http_headers[] -- it just get's ignored.)

Let me know if you want some crappy code that does this.
All I ask in return is undying gratitude.*

Rgds

Garrick McFarlane
WOConsultant
Linklaters, London
+44 (0) 701 0707 998

* Actually I'd forego the gratitude for a patch that
  fixes WO4.5 deployment...

-----Original Message-----
From: David Neumann [mailto:dneumann@apple.com]
Sent: Thursday, July 06, 2000 6:48 AM
To: Brian Wotring; webobjects@omnigroup.com
Subject: Re: headers


I'm no HTTP guru and could be wrong, but I don't think you can necessarily
control what headers a web server interface passes to you. For example, NES
3.6's CGI interface does not pass the "authorization" header but its NSAPI
does.  You can certainly return any headers you please and these seem to
make it to the client regardless. If the ISAPI interface is not passing
"myheader" then there's nothing you can do really... except look for some
undocumented feature in the ISAPI that does the trick for you.

d



----------
>From: Brian Wotring <brian@fortnocs.com>
>To: webobjects@omnigroup.com
>Subject: headers
>Date: Wed, Jul 5, 2000, 8:29 PM
>

>
> Hopefully somebody can help me with this.  I have been unable to allow
> custom headers into a WO app deployed on an NT box, using the IIS adaptor.
>
> I've modified the httpheaders.h and added "myheader", to the
http_headers[]
> array. Compiled the adaptor, and placed the new WebObjects.dll in the
> /scripts directory, and rebooted the box.
>
> Is this the only steps necessary to allow a header, "myheader" for
example,
> through to the application?  When I print out the headers dictionary, I do
> not see the header coming through when sent.
>
> In addition, I have tried adding "HTTP_myheader" to the array.  Same
result.
>
> Any help will be appreciated, thanks.
>
>
>
>
>   |  Brian Wotring  ( brian@fortnocs.com )
>   |  Fort Nocs, Inc.
>   |  PGP Key ID: 0x9674763D
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects


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From Filippo.Macchiettini at concept.it  Thu Jul  6 04:24:21 2000
From: Filippo.Macchiettini at concept.it (Filippo Macchiettini)
Date: Thu Jul  6 03:24:21 2000
Subject: WOPopUpButton Values
Message-ID: <200007061024.MAA10980@mindseal.comm2000.it>

> Hi all,
>
> I need WOPopUpButton to generate a <SELECT><OPTION> html tag with
> controllable Value Fields, WO usually assigns Values automatically 
> starting from 0.
> How can I change this behaviour?

> Just to explain better, now I have

> <SELECT name="6.1">
> <OPTION value="0">Coke</OPTION>
> <OPTION value="1">Pepsi</OPTION>
> <OPTION value="2">Orange Juice</OPTION>
> <OPTION value="3">Water</OPTION>

> And I need to do

> <SELECT name="6.1">
> <OPTION value="CC">Coke</OPTION>
> <OPTION value="PP">Pepsi</OPTION>
> <OPTION value="OJ">Orange Juice</OPTION>
> <OPTION value="WA">Water</OPTION>

> Is there an easy way to do this?

> Thanks,

you should put something in the "value" binding of the WOPopUpButton  
(just look at the
documentation for WOPopUpButton)

For example, bind a method that, given an element of the popUpButton  
list  (you can access it through the 'item' binding), returns the  
correct string ("CC" for "Coke").
Hope it helps.

Ciao, Filippo

------------------------------------------------------------------------

Filippo Macchiettini

Project Engineer at Concept S.r.l 

filippo.macchiettini@concept.it

http://www.concept.it
 

 







From Christoph.Niessen at dv-org.de  Thu Jul  6 05:57:25 2000
From: Christoph.Niessen at dv-org.de (Christoph Niessen)
Date: Thu Jul  6 04:57:25 2000
Subject: EOF and SQL Server 7
Message-ID: <D11A9C58923DD211A6290080C87E5FD30DBBD8@mail.dv-org.de>

Hello everybody,

I am forwarding this on behalf of a customer:

---

I have a problem regarding Weobjects. I use the odbc adapter to connect my
eomodel to microsoft sql and I can fetch records in the eomodel correctly
with that. However, when my obj-c program tries to fetch a record, it gives
EOGeneralAdapterException. What is the problem?? I am using SQL7.0 standard
pack. With SQL enterprise 7.0, it is alright though.

---

Any ideas?

Christoph Niessen
www.wapobjects.com

From squirk at home.com  Thu Jul  6 06:17:16 2000
From: squirk at home.com (Steve Quirk)
Date: Thu Jul  6 05:17:16 2000
Subject: EOAdaptor for DB2?
In-Reply-To: <005801bfe718$af7958e0$0200a8c0@access.ch>
Message-ID: <Pine.BSF.4.21.0007060816350.63630-100000@cc677580-a.sumt1.nj.home.com>

Yes.  It's the ODBC adaptor.

Works great.

Steve

On Thu, 6 Jul 2000, Matthias Vetsch wrote:

> I'd like to use a DB2 database installed on AS/400. Does anyone know
> whether an EOAdaptor for DB2 exists and where I can get it? Thanks,
> Matthias
> 


From jrg23 at yahoo.com  Thu Jul  6 06:55:07 2000
From: jrg23 at yahoo.com (John Gassenheimer)
Date: Thu Jul  6 05:55:07 2000
Subject: WO and Win2000
Message-ID: <20000706125505.10476.qmail@web124.yahoomail.com>

Yes WO4.5 works on W2K.  I know we have clients
deployed with it but my experience is mostly with
development and no major problems so far :)

jrg@apple.com


--- Leon Amdour <leon@drakeassociates.com> wrote:
> Hi, everyone.
> 
> Can anyone tell me if WO4.5 works with Win2000, and
> if it does, are there 
> any problems I need to be aware of.
> Thanks a lot.
> Leon
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


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From jrg23 at yahoo.com  Thu Jul  6 07:02:28 2000
From: jrg23 at yahoo.com (John Gassenheimer)
Date: Thu Jul  6 06:02:28 2000
Subject: simple DB query
Message-ID: <20000706130225.11617.qmail@web124.yahoomail.com>

There are a few ways to do this.  You can use a model
based fetch specification where you can pass in a
binding with "myString".  And then use EOUtilities
method
objectsWithFetchSpecificationAndBindings(editingContext,
entityName, fetchSpecName, bindingDict)

or you can create a fetch specification and fetch in
code.
to see source code and examples look in WOInfoCenter
under 
Books/WebObjects/Topics In WebObjects
Programming/Fetching

good luck
jrg@apple.com
 
--- "Charles L. Read" <clread@mindspring.com> wrote:
> 
> How is a simple DB query done within WO?
> Eg, in SQL:
> 
>   select * from Customer where emailAddr="myString";
> 
> -- 
> Charles L. Read <charles_read@hotmail.com>
> PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D
> 70 C1 DF 5F 65
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


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Send instant messages & get email alerts with Yahoo! Messenger.
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From bmarquis at ogse.com  Thu Jul  6 07:24:31 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Thu Jul  6 06:24:31 2000
Subject: unableToSetNilForKey
Message-ID: <CD4FCCD776FDD211986F00A0C9A7094728453C@SBNT4>

Has anyone actually used "unableToSetNullForKey" in Java? I'm beginning to
wonder if it works at all.

This brings me to another question. Is it better to simply avoid using
scalar types for exposed properties/accessors?

> -----Original Message-----
> From:	Brian P. Marquis [SMTP:bmarquis@ogse.com]
> Sent:	Wednesday, July 05, 2000 2:35 PM
> To:	Multiple recipients of list (E-mail)
> Subject:	RE: unableToSetNilForKey
> 
> I've made the following changes to my class, but still get the
> NSInvalidArgumentException, and the println never gets executed. Wierd.
> Any
> ideas?
> 
>     public void unableToSetNullForKey( String keyname ) {
>         System.out.println( keyname + "\n" );
>         if ( keyname.equals("qty") ) {
>             qty = 0;
>         } else {
>             super.unableToSetNullForKey( keyname );
>         }
>     }
> 
> 
> > -----Original Message-----
> > From:	Brian P. Marquis [SMTP:bmarquis@ogse.com]
> > Sent:	Wednesday, July 05, 2000 2:05 PM
> > To:	Multiple recipients of list (E-mail)
> > Subject:	unableToSetNilForKey
> > 
> > I need to be able to override unableToSetNilForKey, but I want the
> default
> > behavoir for the fields I'm not checking. I tried
> > super.unableToSetNilForKey( keyname ); but that method doesn't exist in
> > EOCustomObject.
> > 
> >     public void unableToSetNilForKey(String keyname) {
> >         if ( keyname.equals("qty") ) {
> >             qty = 0;
> >         } else {
> >             // not sure what goes here
> >         }
> >     }
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From wostuff at hotmail.com  Thu Jul  6 07:45:47 2000
From: wostuff at hotmail.com (Andrus Adamchik)
Date: Thu Jul  6 06:45:47 2000
Subject: managing software downloads on a storefront
Message-ID: <F142fcKOREALVl83iIU000035f5@hotmail.com>

Charles,

I haven't implemented it yet, but lately I was thinking a lot about this 
problem. I came up with some stuff for FTP download (after all it is faster 
then HTTP). So here is how I see it:

1. You set up an FTP server and create an "anonymous" account there 
(creating *real* user accounts may present a security threat). There will be 
a directory tree accessible by anonymous users (say everyting under 
/home/ftp/pub), but to download a file user must have at least "read" 
permissions.

2. When a user checks out from the store and makes a payment, a new 
directory is created on FTP server where all the files he can access are 
copied. At this point they will be owned by root and have permissions like 
500 (anonymous user still can NOT access them).

3. When a user clicks on "Download" link in WebObjects (I assume WO 
application already did authentication), a script is executed on the FTP 
server to change permissions to say 544, and directory is renamed to some 
random name (like WO Session ID).

4. User redirected to the URL of this new directory and performs download.

5. When the download is complete (terminated or stalled), a script on the 
server will revoke those read permissions and rename directories back to 
their original state making them inaccessible again.

This idea is the same as the idea behind WO Session security - SessionId is 
random and lives for a short period of time only, so it is hard to hijack 
it.

Hope this helps. Please let me know if you have better solutions (or any 
specific solutions that work with HTTP).

Andrus


>From: clread@mindspring.com (Charles L. Read)
>To: webobjects@omnigroup.com
>Subject: managing software downloads on a storefront
>Date: 06 Jul 2000 01:23:56 -0500
>
>How do people manage (and restrict) software downloads
>on a web-site through WebObjects?
>
>I would prefer *not* to put downloadable files
>under DocumentRoot.  So, is there some way I
>can push the downloadable files when someone
>presses a link?
>
>Regards,
>--
>Charles L. Read <charles_read@hotmail.com>
>PGP fingerprint =  5F 94 2C B6 36 35 64 A9  CF F5 3D 70 C1 DF 5F 65
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects

________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com


From bmarquis at ogse.com  Thu Jul  6 07:52:11 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Thu Jul  6 06:52:11 2000
Subject: Uname question
Message-ID: <CD4FCCD776FDD211986F00A0C9A7094728453E@SBNT4>

I ran across a problem with the WebObjects adaptor connecting to a WOapp
running on HP-UX (the adaptor was running on RH 6.2).

I kept getting invalid host name when I tried to start the app from monitor
and finally discovered through careful examination of http://appserver:1085
that the app was running on "Appservername" while the host in monitor was
set to "appservername". 

Question is, since dns is case-insensitive, is it ok to use mixed case or
should we change the machine name to lowercase?

From jon at holicow.com  Thu Jul  6 07:58:43 2000
From: jon at holicow.com (Jon Nolan)
Date: Thu Jul  6 06:58:43 2000
Subject: unableToSetNilForKey
In-Reply-To: <CD4FCCD776FDD211986F00A0C9A7094728453C@SBNT4>
Message-ID: <v04020a00b58a3fb12cc4@[166.70.65.250]>

Yes.  Here's my method.

public void unableToSetNullForKey(String key) {
    takeValueForKey(new Integer(0), key);
}

Works every time in both 4.0.1 and 4.5.

Jon


>Has anyone actually used "unableToSetNullForKey" in Java? I'm beginning to
>wonder if it works at all.
>
>This brings me to another question. Is it better to simply avoid using
>scalar types for exposed properties/accessors?
>
>> -----Original Message-----
>> From:	Brian P. Marquis [SMTP:bmarquis@ogse.com]
>> Sent:	Wednesday, July 05, 2000 2:35 PM
>> To:	Multiple recipients of list (E-mail)
>> Subject:	RE: unableToSetNilForKey
>>
>> I've made the following changes to my class, but still get the
>> NSInvalidArgumentException, and the println never gets executed. Wierd.
>> Any
>> ideas?
>>
>>     public void unableToSetNullForKey( String keyname ) {
>>         System.out.println( keyname + "\n" );
>>         if ( keyname.equals("qty") ) {
>>             qty = 0;
>>         } else {
>>             super.unableToSetNullForKey( keyname );
>>         }
>>     }
>>
>>
>> > -----Original Message-----
>> > From:	Brian P. Marquis [SMTP:bmarquis@ogse.com]
>> > Sent:	Wednesday, July 05, 2000 2:05 PM
>> > To:	Multiple recipients of list (E-mail)
>> > Subject:	unableToSetNilForKey
>> >
>> > I need to be able to override unableToSetNilForKey, but I want the
>> default
>> > behavoir for the fields I'm not checking. I tried
>> > super.unableToSetNilForKey( keyname ); but that method doesn't exist in
>> > EOCustomObject.
>> >
>> >     public void unableToSetNilForKey(String keyname) {
>> >         if ( keyname.equals("qty") ) {
>> >             qty = 0;
>> >         } else {
>> >             // not sure what goes here
>> >         }
>> >     }
>> > _______________________________________________
>> > WebObjects mailing list
>> > WebObjects@omnigroup.com
>> > http://www.omnigroup.com/mailman/listinfo/webobjects
>> _______________________________________________
>> WebObjects mailing list
>> WebObjects@omnigroup.com
>> http://www.omnigroup.com/mailman/listinfo/webobjects
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects


From bmarquis at ogse.com  Thu Jul  6 07:58:55 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Thu Jul  6 06:58:55 2000
Subject: Initialising PageWithName Objects
Message-ID: <CD4FCCD776FDD211986F00A0C9A7094728453F@SBNT4>

> > How can I put initialisation code for that object i a similar way as
> > one normally can when using a constructor?
> > 
> 
As pointed out by another post, you can use accessor methods to set
properties on a component returned from pageWithName. If you must use the
objects constructor for initialization, then you could use the session
object to pass values and access them in the objects construtor.

From mmalc at stepwise.com  Thu Jul  6 08:09:08 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Thu Jul  6 07:09:08 2000
Subject: unableToSetNilForKey
In-Reply-To: <CD4FCCD776FDD211986F00A0C9A7094728453C@SBNT4>
Message-ID: <B58A519A.9681%mmalc@stepwise.com>

Brian P. Marquis wrote:

> Has anyone actually used "unableToSetNullForKey" in Java? I'm beginning to
> wonder if it works at all.
> 
Have you set the "Allow null value" switch in the advanced attribute
inspector?  If not, the model constraints will be checked before your code
is reached...

> This brings me to another question. Is it better to simply avoid using
> scalar types for exposed properties/accessors?
> 
In general, probably yes.  For one thing you have to cater for null
values(!); furthermore whilst you may think that you're saving memory,
recall that snapshots have to be made, and if you're using an
EOGenericRecord in 4.5 you'll be saving the ivars in a dictionary, so
they'll have to be objects too... so actually you may be both not saving
memory, and actually causing the system to do a number of "unwanted"
conversions between objects and scalars.

mmalc.



From brian at fortnocs.com  Thu Jul  6 08:30:58 2000
From: brian at fortnocs.com (Brian Wotring)
Date: Thu Jul  6 07:30:58 2000
Subject: EOF errors
Message-ID: <3.0.6.32.20000706074024.0133fde0@mailhost.fortnocs.com>

Is it common for EOF to have exceptions like this?  I'm using SQL server,
two instances of the WO app were running, and these apps were NOT handling
concurrent requests.  The apps just do a very small single insert per request:

<pre>NSInternalInconsistencyException:
_primaryKeyForObject:: EODatabaseContext 0xc98810 is unable to obtain a
primary key for FNTransaction object 0xc8fc00
	at java.lang.Throwable.&lt;init&gt;(Compiled Code)
	at java.lang.Exception.&lt;init&gt;(Compiled Code)
	at java.lang.RuntimeException.&lt;init&gt;(Compiled Code)
	at com.apple.yellow.foundation.NSException.&lt;init&gt;(Compiled Code)
	at FNDatabaseManager.logTransaction(Compiled Code)
	at FNRequestManager.handleRequestWithResponse(Compiled Code)
	at DirectAction.defaultAction(Compiled Code)
</pre>


  |  Brian Wotring  ( brian@fortnocs.com )
  |  Fort Nocs, Inc.
  |  PGP Key ID: 0x9674763D

From jon at holicow.com  Thu Jul  6 08:31:47 2000
From: jon at holicow.com (Jon Nolan)
Date: Thu Jul  6 07:31:47 2000
Subject: unableToSetNilForKey
In-Reply-To: <B58A519A.9681%mmalc@stepwise.com>
References: <CD4FCCD776FDD211986F00A0C9A7094728453C@SBNT4>
Message-ID: <v04020a04b58a4680c631@[166.70.65.250]>

>> This brings me to another question. Is it better to simply avoid using
>> scalar types for exposed properties/accessors?
>>
>In general, probably yes.  For one thing you have to cater for null
>values(!); furthermore whilst you may think that you're saving memory,
>recall that snapshots have to be made, and if you're using an
>EOGenericRecord in 4.5 you'll be saving the ivars in a dictionary, so
>they'll have to be objects too... so actually you may be both not saving
>memory, and actually causing the system to do a number of "unwanted"
>conversions between objects and scalars.
>
>mmalc.

mmalc,

I believe that you say is absolutely true.  I don't think it's a good idea
at all to use scalar types in EOs.

There is also a bunch of non-EO key value binding going on in the typical
WO application and so the problem remains.  I'm not sure what Brian is
doing but the little example I posted previously is used within financial
calculator components that depend on scalar types to calculate annuity,
compound, future value, etc.  I try to avoid using objects for my ivars in
this situation.  Obviously these components could be implemented with
objects and conversions would be made before the calculations.  I just
prefer the scalar approach.  It seems cleaner and more efficient for my
purposes.

Jon Nolan

Web Dynamics, Inc.
476 Heritage Park Blvd., Suite 215
Layton, Utah  84041
Phone: 801-927-1008
Email: jon@holicow.com

From randy at oceansoft.com  Thu Jul  6 08:35:12 2000
From: randy at oceansoft.com (Randy Leonard)
Date: Thu Jul  6 07:35:12 2000
Subject: wish list and bad things in WO
Message-ID: <B12854354C36D3119E81204C4F4F50200430F9@EARTH>

I've been asking for this since the early days of WebObjects, but it's never
seemed to be on the list of Apple's priorities for WebObjects.  They do it
for Interface Builder, why not WebObjectsBuilder? 

I hacked this functionality into WebObjects 3.x and it worked great!  But
it's not advisable to release a product dependent on Apple's private API's
;).

Randy Leonard
Ocean Software, Inc.
randy@oceansoft.com
904-363-1646


-----Original Message-----
From: d.theisen@objectpark.de [mailto:d.theisen@objectpark.de]
Sent: Tuesday, July 04, 2000 6:43 PM
To: gustavo.frederico@usa.net
Cc: webobjects@omnigroup.com
Subject: Re: wish list and bad things in WO


Hello!

> Here is my wish list for WebObjects:
> - my own custom sub-component representation in WebObjectsBuilder. I want
my
>   sub-component to look like a WORepetition, or a WOCondition

In addition, we'd like to be able to provide custom views and custom
inspectors(!) like the BODY inspector

> - EOModeler format in xml
> - XMLFileAdaptor
> - change wod files to xml

We at ObjectTeam very much second this. This would allow us to drive
user friendlyness and look of our WAP framework
<http://www.wapobjects.com> to the max.

Regards,
  Dirk
_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects

From pvanhout at pragmatyxs.com  Thu Jul  6 08:36:43 2000
From: pvanhout at pragmatyxs.com (Paul Van Hout)
Date: Thu Jul  6 07:36:43 2000
Subject: EOF and SQL Server 7
In-Reply-To: <D11A9C58923DD211A6290080C87E5FD30DBBD8@mail.dv-org.de>
Message-ID: <003601bfe757$b8c6a3a0$6501a8c0@pragmatyxs.com>

What version of WebObjects?  If 4.0, have the latest patches been installed?
What exception is being thrown?

During debug have -EOAdaptorDebugEnable = YES set for the command line as it
is helpful for troubleshooting.

Paul

-----Original Message-----
From: webobjects-admin@omnigroup.com
[mailto:webobjects-admin@omnigroup.com]On Behalf Of Christoph Niessen
Sent: Thursday, July 06, 2000 4:57 AM
To: webobjects@omnigroup.com
Subject: EOF and SQL Server 7


Hello everybody,

I am forwarding this on behalf of a customer:

---

I have a problem regarding Weobjects. I use the odbc adapter to connect my
eomodel to microsoft sql and I can fetch records in the eomodel correctly
with that. However, when my obj-c program tries to fetch a record, it gives
EOGeneralAdapterException. What is the problem?? I am using SQL7.0 standard
pack. With SQL enterprise 7.0, it is alright though.

---

Any ideas?

Christoph Niessen
www.wapobjects.com
_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects


From mb at uptime.ch  Thu Jul  6 08:38:18 2000
From: mb at uptime.ch (Michael Bieri)
Date: Thu Jul  6 07:38:18 2000
Subject: Localized resources
Message-ID: <0007061636.AA460232@zhp105wks>

Hi all,

does somebody know how it's possible to add a file to the global resources 
as well as to a certain language project (like the LocalizedHello example)
that comes with WO? They did some funny stuff with the japanese 
resources....

Everytime I try to add a resource to the language project it complains, that
it's already in the global resources. And if I try it the other way, it
complains, that the file is already in a language project.

Is there a difference between resourcefiles (like *.strings) and 
WOComponents?

btw. its for WO 4.01

thanks & greetings
	Michael
____________________________________________________________________________
Uptime Object Factory Inc
Archivierung | Document Management | Workflow
Technopark Zuerich, Technoparkstrasse 1, CH-8005 Zuerich | Switzerland

Michael Bieri
El. Ing. HTL
michael.bieri@uptime.ch

PHONE +41 (0)1 276 80 60 | FAX +41 (0)1 276 80 61 | WWW http://www.uptime.ch

From Jens.Baumeister at Uni-Koeln.DE  Thu Jul  6 08:43:58 2000
From: Jens.Baumeister at Uni-Koeln.DE (Jens Baumeister)
Date: Thu Jul  6 07:43:58 2000
Subject: Error when trying to save BigDecimal to Oracle NUMBER(12,2)
Message-ID: <Pine.SOL.3.96.1000706162342.6797A-100000@campfire.rrz.Uni-Koeln.DE>

Hi,

thanks to the list I found the underlying reason for my
EOGeneralAdaptorFault problem:

Apparently, I can't save a BigDecimal into an oracle column of the type
NUMBER(12,2).

Wehn I cange the Oracle type to NUMBER(12) I can happily save any
BigDecimal that happens to be a whole number, but with NUMBER(12,2) it
won't let me save any number to the DB.

The value I'm trying to save is an amount of money that'll never go below
0.00 and not above 999999.99

What datatypes should I be using in Java and / or Oracle?

Jens

----
She sells c-shells by the seashore.


From cchan at gefmus.com  Thu Jul  6 08:58:01 2000
From: cchan at gefmus.com (Chiu Chan)
Date: Thu Jul  6 07:58:01 2000
Subject: Send mail from a WebObjects Application?
In-Reply-To: <Pine.SOL.3.96.1000706162342.6797A-100000@campfire.rrz.Uni-Koeln.DE>
Message-ID: <000b01bfe75a$08651b60$0715640a@gefmus.com>

Hi, I'm a new user,
can anyone please tell me how to send an email
from a WebObjects application?

thanks
Chiu


From richterd at umich.edu  Thu Jul  6 09:01:46 2000
From: richterd at umich.edu (David Mac Cary Richter)
Date: Thu Jul  6 08:01:46 2000
Subject: _scope selector not recognized
In-Reply-To: <p04310101b589d66cc145@[63.194.86.57]>
Message-ID: <Pine.SOL.4.10.10007061058310.4376-100000@stargate.gpcc.itd.umich.edu>

On Wed, 5 Jul 2000, Seth Milliken wrote:

> I've just deployed a WO 4.5 application on Mac OS X Server 1.2. The 
> app is running fine, but I've been having a bit of trouble getting 
> Monitor to work. When I launch Monitor, the first page comes up fine, 
> but if I do anything at all, it throws an exception.
> 

	Yes, I know what's up: WO4.5 was installed on top of the previous
copy of WO4.0x (which hadn't been properly uninstalled).  There are two
packages in /Local/Library/Receipts that won't properly uninstall now that
they'be been partially overwritten.

	If you try it, you will also notice that D2W apps fail when you
try to do anything.  You'll need to start over--I strongly recommend a
format.

	-david.

_____
i value your electrons--try and hit me:
drichter@apple.com / richterd@umich.edu
415.902.3724 (PCS) / 408.974.2871 (off)
    .  http://www.downhaven.com  .



From Jens.Baumeister at Uni-Koeln.DE  Thu Jul  6 09:07:15 2000
From: Jens.Baumeister at Uni-Koeln.DE (Jens Baumeister)
Date: Thu Jul  6 08:07:15 2000
Subject: Send mail from a WebObjects Application?
In-Reply-To: <000b01bfe75a$08651b60$0715640a@gefmus.com>
Message-ID: <Pine.SOL.3.96.1000706170559.6797B-100000@campfire.rrz.Uni-Koeln.DE>

On Thu, 6 Jul 2000, Chiu Chan wrote:

> Hi, I'm a new user,
> can anyone please tell me how to send an email
> from a WebObjects application?

Look at the documentaion for this class:

WOMailDelivery

Jens


From mmalc at stepwise.com  Thu Jul  6 09:09:16 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Thu Jul  6 08:09:16 2000
Subject: unableToSetNilForKey
In-Reply-To: <B58A519A.9681%mmalc@stepwise.com>
Message-ID: <B58A5FF0.969B%mmalc@stepwise.com>

I wrote:
>> This brings me to another question. Is it better to simply avoid using
>> scalar types for exposed properties/accessors?
> In general, probably yes. [...] whilst you may think that you're saving,
> memory recall that snapshots have to be made, and if you're using an
> EOGenericRecord in 4.5 you'll be saving the ivars in a dictionary, so
> they'll have to be objects too... so actually you may be both not saving
> memory, and actually causing the system to do a number of "unwanted"
> conversions between objects and scalars.
>
Sorry for being lazy here (and thanks to Jon Nolan for nudging -- in
private! :-)

The "implied" converse to this is, if your business logic is accessing these
values more frequently than EOF, then scalar ivars may be more efficient.

mmalc


From mmalc at stepwise.com  Thu Jul  6 09:11:54 2000
From: mmalc at stepwise.com (mmalcolm crawford)
Date: Thu Jul  6 08:11:54 2000
Subject: Send mail from a WebObjects Application?
In-Reply-To: <000b01bfe75a$08651b60$0715640a@gefmus.com>
Message-ID: <B58A6079.96A0%mmalc@stepwise.com>

Chiu Chan wrote:
> can anyone please tell me how to send an email
> from a WebObjects application?
>
Check out WOMailDelivery.

mmalc.


From Michael.Chen at hbo.com  Thu Jul  6 09:34:08 2000
From: Michael.Chen at hbo.com (Chen, Michael (HBO))
Date: Thu Jul  6 08:34:08 2000
Subject: Broken images for "direct to Java client"
Message-ID: <DF8D8519EC88D31193B100A0C931F226530A90@hbonyex04mb.homebox.com>

Hi:

I used the "direct to Java client template" to create a Java client
Application. 

Right now, the users of my application need to specify the port number
(e.g., http://www.host.com:1234/cgi-bin/WebObjects/application
<http://www.host.com:1234/cgi-bin/WebObjects/application> ) in the URL to
display the images properly. (The images are in the framework -
EOJavalient.framework.) If users left out the port number in the URL, then
they got broken images for the application. 

The Java console utility of Netscape displays the following error messages:
...
Could not load icon with url
/WebObjects/Frameworks/EOJavaClient.framework/WebServerResources/ActionIconF
ind.gif
...

Any comments will be appreciated.

Sincerely,
Mike Chen



From dempseyj at apple.com  Thu Jul  6 09:35:24 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 08:35:24 2000
Subject: WORedirect (was Re: EOKeyBinding warning etc.)
In-Reply-To: <4.2.2.20000705164442.023f82d8@hecky.acns.nwu.edu>
Message-ID: <B589F421.9278%dempseyj@apple.com>

Just a note - 

In 4.5 WORedirect has been "promoted" to the WebObjects framework proper in
Java (for meritorious service I suppose).

Its two methods url() and setURL() are documented in WOInfoCenter
(WebObjects Reference (Java)).

Of course, it inherits lots of other methods from WOComponent.

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Jonathan Rochkind <j-rochkind@nwu.edu>
> Date: Wed, 05 Jul 2000 16:49:19 -0500
> To: michael@stb.nccom.com, webobjects@omnigroup.com
> Subject: Re: EOKeyBinding warning - regarding capitalized key
> 
> This is even one of Apple's own reusable components, and it is even
> documented to have a key named "URL".  Since it's API isn't documented
> beyond binding keys, I thought this was the best way to deal with it.
> 
> However, my application actually was crashing right at this point for
> reasons that appeared to be due to the capital-U key. Not predictably every
> time, even more odd, but just sometimes. Changing it to the undocumented
> redirect.setURL("http://adfadf"); got rid of the crashes.


From shayman at apple.com  Thu Jul  6 09:37:35 2000
From: shayman at apple.com (Steve Hayman)
Date: Thu Jul  6 08:37:35 2000
Subject: PWO II Training in Toronto
Message-ID: <3964A766.6B949720@apple.com>

The Programming WebObjects courses taught in Toronto (and Montreal) are
indeed Apple courses, taught in the Apple offices by Apple employees
(or, sometimes, Apple subcontractors) on MacOS X Server.
It's the same high-quality course you would get if you went to Cupertino or
any
of the other Apple locations.

Regards,
Steve
-- 
Steve Hayman
Senior Systems Engineer, Apple iServices, Toronto
shayman@apple.com || (416) 769-8995

From scottc at centricsystems.ca  Thu Jul  6 09:38:27 2000
From: scottc at centricsystems.ca (Scott Corscadden)
Date: Thu Jul  6 08:38:27 2000
Subject: Error when trying to save BigDecimal to Oracle NUMBER(12,2)
References: <Pine.SOL.3.96.1000706162342.6797A-100000@campfire.rrz.Uni-Koeln.DE>
Message-ID: <3964A7C9.8E64A81E@centricsystems.ca>

Hi Jens. When you changed your database integrity constraint, did you update your EOModel file? (You
can choose 'New Updated Model' then choose this table and see the new way that EOF 'sees' that
column). Another thing that might help is to turn EOAdaptorDebugEnabled to see exactly what is being
sent to the db.

HTH
ScottC

Jens Baumeister wrote:
> 
> Hi,
> 
> thanks to the list I found the underlying reason for my
> EOGeneralAdaptorFault problem:
> 
> Apparently, I can't save a BigDecimal into an oracle column of the type
> NUMBER(12,2).
> 
> Wehn I cange the Oracle type to NUMBER(12) I can happily save any
> BigDecimal that happens to be a whole number, but with NUMBER(12,2) it
> won't let me save any number to the DB.
> 
> The value I'm trying to save is an amount of money that'll never go below
> 0.00 and not above 999999.99
> 
> What datatypes should I be using in Java and / or Oracle?
> 
> Jens
> 
> ----
> She sells c-shells by the seashore.
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects

From marcus.mueller at pixelpark.com  Thu Jul  6 09:39:42 2000
From: marcus.mueller at pixelpark.com (Marcus Mueller)
Date: Thu Jul  6 08:39:42 2000
Subject: WOF 4.0, 4.5 JavaVM quirks
Message-ID: <200007061539.IAA22658@scyther.omnigroup.com>

Hi,

did someone notice, that there's an obvious problem with using  
java.net.* classes in a Java project on WebObjects 4.01 and 4.5?

If you use UDP, for example, you get the following:

ld.so.1:  
/www/apps/webobjects-4.5/Local/Library/WebObjects/Applications/ChangeReflector.woa/ChangeReflector:  
fatal: libnet.so: open failed: No such file or directory (libnet.so)
Jul 06 17:16:29 ChangeReflector[4664] *** <WOApplicationMain>:  
Cannot initialize because:
java/lang/UnsatisfiedLinkError: no net in shared library path
Stack Trace:
java.lang.UnsatisfiedLinkError: no net in shared library path
        at java.lang.Runtime.loadLibrary(Runtime.java)
        at java.lang.System.loadLibrary(System.java)
        at
        at
        at UDPChangeListener.<init>(UDPChangeListener.java:56)
        at UDPChangeListener.<init>(UDPChangeListener.java:51)
        at Application.setup(Application.java:55)
        at Application.<init>(Application.java:33)


libnet.so is located in  
$(NEXT_ROOT)/Library/JDK/lib/sparc/native_threads, but as far as I  
understand what's happening with the LD_LIBRARY_PATH there should  
also be a link to that shared object from  
$(NEXT_ROOT)/Library/JDK/lib. Is there any reason why it's missing,  
other than a mistake/omission in Apple's installer scripts? Or am I  
missing something? Will providing the links solve my problems or will  
it introduce new subtle errors? I need to be sure on this, otherwise  
or deployment is in danger.


Thanks in advance,

  Marcus


--
Marcus Müller  .  .  .  IT Developer
Pixelpark AG Dortmund  .  http://www.pixelpark.com
Ruhrallee 9  .  44139 Dortmund  .  Germany
phone: +49 231 552 1455, fax: -1490


From jleung at ci.tacoma.wa.us  Thu Jul  6 09:44:09 2000
From: jleung at ci.tacoma.wa.us (jleung@ci.tacoma.wa.us)
Date: Thu Jul  6 08:44:09 2000
Subject: ReportMill question
Message-ID: <C78C3488003ED311816100A0C9E3245E2502A2@m5.ci.tacoma.wa.us>

In ReportMill, does anyone know how to change the name 
of a Table once it has been created.  I am trying to cut and paste 
Tables from one template to another or reproduce the same Table
within a template under a different Table name.

John

From dempseyj at apple.com  Thu Jul  6 10:00:02 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 09:00:02 2000
Subject: PWO II Training in Toronto
In-Reply-To: <3964A766.6B949720@apple.com>
Message-ID: <B589F9E8.9280%dempseyj@apple.com>

> It's the same high-quality course you would get if you went to Cupertino or
> any of the other Apple locations.

With the sole exception that any beer you may hoist at the end of a
brain-filling day of training has more alcoholic content in Canada...

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Steve Hayman <shayman@apple.com>
> Date: Thu, 06 Jul 2000 11:36:06 -0400
> To: webobjects@omnigroup.com
> Cc: Bill Garrison <garrison@standardorbit.com>
> Subject: Re: PWO II Training in Toronto
> 
> The Programming WebObjects courses taught in Toronto (and Montreal) are
> indeed Apple courses, taught in the Apple offices by Apple employees
> (or, sometimes, Apple subcontractors) on MacOS X Server.
> It's the same high-quality course you would get if you went to Cupertino or
> any
> of the other Apple locations.
> 
> Regards,
> Steve
> -- 
> Steve Hayman
> Senior Systems Engineer, Apple iServices, Toronto
> shayman@apple.com || (416) 769-8995
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From dempseyj at apple.com  Thu Jul  6 10:01:51 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 09:01:51 2000
Subject: Localized resources
In-Reply-To: <0007061636.AA460232@zhp105wks>
Message-ID: <B589FA50.9281%dempseyj@apple.com>

Michael,

There appears to be a limitation in Project Builder in which it will allow a
resource to be localized OR global, but not both.  This is inconvenient,
however here are two potential workarounds:

Workaround #1 Not so elegant:
Philosophy: Forget PB - I'll just make sure everything's right in the file
system when I deploy.

Localized resources are just file system-based resources, and so, you could
just ensure that you manually put the right global resources in the top
level Resources/WebServerResources directories when you deploy.  Not a
terrific solution as it is file-moving intensive, not automatic, and error
prone.

Workaround #2 More elegant:
Philosophy: Use the functionality that is provided to achieve the desired
effect

Make a language project for your global, default language.  (In the US that
might be English).  Put all of your 'global' default items in there, and
manage it like any other language.

In your Session class, override setLanguages() so that it always appends
your global language (in this case, the string "English") to the incoming
array of languages.  This way, whenever the language is set by either you or
the framework, the default language is always at the end of the list as a
'catch-all'.

In this scenario, a session always has a fallback language which serves as
the global/default, and you can use Project Builder to manage those
global/default resources since they too are stored in a language project.

Thanks to Erik Doernenburg for confirmation on technique #2.

This should be the case in WO 4.0 and later.

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Michael Bieri <mb@uptime.ch>
> Date: Thu, 06 Jul 2000 16:36:46 +0200
> To: webobjects@omnigroup.com
> Subject: Localized resources
> 
> Hi all,
> 
> does somebody know how it's possible to add a file to the global resources
> as well as to a certain language project (like the LocalizedHello example)
> that comes with WO? They did some funny stuff with the japanese
> resources....
> 
> Everytime I try to add a resource to the language project it complains, that
> it's already in the global resources. And if I try it the other way, it
> complains, that the file is already in a language project.
> 
> Is there a difference between resourcefiles (like *.strings) and
> WOComponents?
> 
> btw. its for WO 4.01
> 
> thanks & greetings
> Michael
> ____________________________________________________________________________
> Uptime Object Factory Inc
> Archivierung | Document Management | Workflow
> Technopark Zuerich, Technoparkstrasse 1, CH-8005 Zuerich | Switzerland
> 
> Michael Bieri
> El. Ing. HTL
> michael.bieri@uptime.ch
> 
> PHONE +41 (0)1 276 80 60 | FAX +41 (0)1 276 80 61 | WWW http://www.uptime.ch
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From schnitz at round1.com  Thu Jul  6 10:20:25 2000
From: schnitz at round1.com (Ray Schnitzler)
Date: Thu Jul  6 09:20:25 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
Message-ID: <F365D2C83704D411A70300B0D02056960C945A@hope.round1.com>

Nope, we're using WO 4.5, G4's, and ObjC, too.  The button seems to be the
only problem for us.

Ray

> -----Original Message-----
> From: Eric Hermanson [mailto:ehermanson@gofish.com]
> Sent: Wednesday, July 05, 2000 10:06 PM
> To: webobjects@omnigroup.com
> Subject: Re: Workaround for Annoying ProjectBuilder Definition Search
> Bug?
> 
> 
> ----- Original Message -----
> From: "Ray Schnitzler" <schnitz@round1.com>
> 
> > In our experience, it seems that this happens when you 
> start a definition
> > search by clicking the button.  Searching by hitting 
> <enter> doesn't cause
> > the problem.
> 
> That's not my experience.  For me, the find panel eventually 
> gets 'hosed'
> regardless of whether I use the button or just hit return to initiate
> "Definition" search.  I'm using a 500 Mhz G4, WO4.5, mainly 
> searching Obj-C.
> Maybe it works for Java files, and not Obj-C, and that's why 
> I'm seeing the
> problems while others are not?
> 
> - Eric
> 
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
> 

From jmiller at ecashtech.com  Thu Jul  6 10:41:14 2000
From: jmiller at ecashtech.com (jmiller@ecashtech.com)
Date: Thu Jul  6 09:41:14 2000
Subject: Parent to Child component communication
Message-ID: <6FD4D24264E1D311A29A00508B8BC9C112CDE2@MAIL1>

Won't it be easier to have the validation of your form elements invoked
by your Address component itself? For example, you could do this in
Address.invokeAction(), set your isValid-flag there and inform the parent,
if validation errors occured. With this, you could still reuse your
Address-component ...
J

-----Original Message-----
From: Brendan Duddridge [mailto:brendan@clickspace.com]
Sent: Wednesday, July 05, 2000 11:09 PM
To: webobjects@omnigroup.com
Subject: Parent to Child component communication


Hi,

Ok, so I know a child component can invoke a parent's action method. But how
do you make a parent invoke a child's action method?

I'm creating a generic Address Information component that has a method to
validate its contents, but has no widget to invoke that action. I'd like the
parent component to invoke that action.

I'm doing this because I want to use the Address Information component in
more than one page, but those other pages can have additional form elements
that need to be submitted along with the child's form elements.

So I'd like to have the parent call the child component's validateInput()
method. The validateInput() method sets an attribute isValidInput on the
child which is bound to the parent's isValid() method. Then the parent will
know if the child's input is valid (ie, all required form values have been
specified, the user isn't entering a duplicate record into the database,
etc.)

If the child's input is valid, then the parent can proceed to validate it's
own form values.

Is this possible? If so, how do you do it?

Or should I scrap that idea and re-work my components so that I don't have
parent form values on the same component as a child component?

I was just trying to re-use the same form on more than one component.


Thanks for the help,

 
Brendan Duddridge
ClickSpace Interactive Inc.
Calgary, AB
Canada
http://www.clickspace.com/

_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects

From bmarquis at ogse.com  Thu Jul  6 10:45:44 2000
From: bmarquis at ogse.com (Brian P. Marquis)
Date: Thu Jul  6 09:45:44 2000
Subject: unableToSetNilForKey
Message-ID: <CD4FCCD776FDD211986F00A0C9A70947284546@SBNT4>

> > Has anyone actually used "unableToSetNullForKey" in Java? I'm beginning
> to
> > wonder if it works at all.
> > 
> Have you set the "Allow null value" switch in the advanced attribute
> inspector?  If not, the model constraints will be checked before your code
> is reached...
> 
Hmm. I'm not actually using a model at all on this class (in fact in the
whole project), since my data source is a socket. Not sure if that means I
get a default model or not.

If I'm not using a model, should I be extending a different class, like
NSObject, instead of EOCustomObject?

-- Brian

From ehermanson at gofish.com  Thu Jul  6 10:47:52 2000
From: ehermanson at gofish.com (Eric Hermanson)
Date: Thu Jul  6 09:47:52 2000
Subject: _scope selector not recognized
References: <p04310101b589d66cc145@[63.194.86.57]>
Message-ID: <022301bfe769$583da300$1501aa0a@seafax.com>

----- Original Message -----
From: "Seth Milliken" <milliken@ricochet.net>

> Exception while evaluating WebScript expression [super
> appendToResponse:aResponse inContext:aContext]:
> <WOComponent>: Cannot initialize because:
> *** -[WOCollapsibleComponentContent _scope]: selector not recognized

I've seen this error occur when you've taken an existing "wos" component,
and turn it into a compiled component (.h / .m), and you forget to remove
the "wos" file from the project directory.  WebObjects gets confused when
loading that component as it tries to load the .m and the .wos
implementations.  Removing the extraneous .wos file does the trick.
Hopefully that helps.

- Eric



From dempseyj at apple.com  Thu Jul  6 11:00:04 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 10:00:04 2000
Subject: unableToSetNilForKey
In-Reply-To: <CD4FCCD776FDD211986F00A0C9A70947284546@SBNT4>
Message-ID: <B58A07FB.9294%dempseyj@apple.com>

Is the value that you are trying to set an object instance variable?  or a
scalar type like 'int'?

Key-value coding will happily set any object type to null, since it is a
valid representable value in Java.

Integer age = null; // perfectly good Java


unableToSetNullForKey() will only be called when your object is handed null
and tries to set some int or float to null (which, of course, is not
doable).  This method is there to catch the case where, literally, you are
"unable to set null" for that instance variable because the language will
not allow it.

int age = null;  // perfectly bad Java

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: "Brian P. Marquis" <bmarquis@ogse.com>
> Date: Thu, 06 Jul 2000 11:36:23 -0500
> To: 'mmalcolm crawford' <mmalc@stepwise.com>, "Brian P. Marquis"
> <bmarquis@ogse.com>, "Multiple recipients of list (E-mail)"
> <webobjects@omnigroup.com>
> Subject: RE: unableToSetNilForKey
> 
>>> Has anyone actually used "unableToSetNullForKey" in Java? I'm beginning
>> to
>>> wonder if it works at all.
>>> 
>> Have you set the "Allow null value" switch in the advanced attribute
>> inspector?  If not, the model constraints will be checked before your code
>> is reached...
>> 
> Hmm. I'm not actually using a model at all on this class (in fact in the
> whole project), since my data source is a socket. Not sure if that means I
> get a default model or not.
> 
> If I'm not using a model, should I be extending a different class, like
> NSObject, instead of EOCustomObject?
> 
> -- Brian
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From j-rochkind at nwu.edu  Thu Jul  6 11:20:06 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Thu Jul  6 10:20:06 2000
Subject: boolean qualifier?
Message-ID: <4.2.2.20000706122127.01392690@hecky.acns.nwu.edu>

How do I do an in memory sort on a boolean attribute?

EOQualifier.qualifierWithQualifierFormat("attribute = true")?
Or
"attribute = %@", new NSArray(new Boolean(true)));

Or some other ObjC-ism I can't guess? What's up?

--Jonathan



From milliken at ricochet.net  Thu Jul  6 11:31:09 2000
From: milliken at ricochet.net (Seth Milliken)
Date: Thu Jul  6 10:31:09 2000
Subject: _scope selector not recognized
In-Reply-To: <200007060644.CAA06718@zaphod.vienna.BLaCKSMITH.com>
References: <p04310101b589d66cc145@[63.194.86.57]>
 <200007060644.CAA06718@zaphod.vienna.BLaCKSMITH.com>
Message-ID: <p04310101b58a6b321460@[63.194.86.57]>

I feared as much. So what *is* the correct way to uninstall WOF 4.0? 
I take it the delete buttons in the WebObjectsDeveloper.pkg and 
WebObjectsDeployment.pkg receipts are not enough?

I'll go scan the archives....

On 2:44 AM -0400, 7/6/00, Carl E. Lindberg wrote:
>>  Does anyone recognize these symptoms as indicative of an obvious
>>  mistake I've made?
>
>	Yep... you didn't uninstall WOF 4.0 correctly.  I think there are a
>couple of files you can delete to make the _scope problem go away, though it
>may take a reinstall (of OS X Server and 4.5) to make sure things are fine.
>Look at recent messages on the webobjects list for more info -- they're
>searchable on www.egroups.com, or look at the Omnigroup pages...
-- 
_____________________________________________________
  Seth Milliken              milliken@ricochet.net
  San Francisco              PGP Public Key Available
_____________________________________________________

From jon at holicow.com  Thu Jul  6 11:33:18 2000
From: jon at holicow.com (Jon Nolan)
Date: Thu Jul  6 10:33:18 2000
Subject: WOJavaScript.scriptSource
Message-ID: <v04020a01b58a6ad526f0@[166.70.65.250]>

Hi,

I can't seem to figure out the usage of the scriptSource binding in
WOJavaScript.  I've created a text file containing my script and I use
something like http://www.mydomain.com/java-script/my-script.htm (bad
extension???) in the scriptSource binding.  The file *is* on another
server.  It doesn't seem to work.  WebObjects puts in the <SCRIPT...> and
</SCRIPT> tags but there's nothing between them.  I could try the same
server approach if that's the problem, however, the finished product will
have the application on a different server from the javascript.

Any ideas?

Thanks,
Jon Nolan

Web Dynamics, Inc.
476 Heritage Park Blvd., Suite 215
Layton, Utah  84041
Phone: 801-927-1008
Email: jon@holicow.com

From pekeler at codefab.com  Thu Jul  6 11:46:34 2000
From: pekeler at codefab.com (Christian Pekeler)
Date: Thu Jul  6 10:46:34 2000
Subject: Workaround for Annoying ProjectBuilder Definition Search Bug?
Message-ID: <200007061746.NAA01129@min.codefab.com>

--Apple-Mail-1502788194-2
content-type: text/enriched; charset=us-ascii
content-transfer-encoding: quoted-printable

<fontfamily><param>Helvetica</param>CFBPBFindWindowFix is a bundle for =
ProjectBuilder that should fix this problem. It was done by Chris =
Whatley/CodeFab and posted some months ago to another WebObjects list.


</fontfamily>=

--Apple-Mail-1502788194-2
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<fontfamily><param>Helvetica</param>



Christian


--Apple-Mail-1502788194-2--

From Carl_Lindberg at BLaCKSMITH.com  Thu Jul  6 12:39:24 2000
From: Carl_Lindberg at BLaCKSMITH.com (Carl E. Lindberg)
Date: Thu Jul  6 11:39:24 2000
Subject: Localized resources
In-Reply-To: <B589FA50.9281%dempseyj@apple.com>
References: <B589FA50.9281%dempseyj@apple.com>
Message-ID: <200007061838.OAA06928@zaphod.vienna.BLaCKSMITH.com>

You wrote:
> Michael,
>
> There appears to be a limitation in Project Builder in which it will allow
> a resource to be localized OR global, but not both.

	ProjectBuilder does this for a reason -- NSBundle will always find a  
global resource before a localized resource when searching for files.  So,  
if a global resource exists, there's no point in having a localized resource.


> Workaround #2 More elegant:
> Philosophy: Use the functionality that is provided to achieve the desired
> effect
>
> Make a language project for your global, default language.  (In the US that
> might be English).  Put all of your 'global' default items in there, and
> manage it like any other language.
>
> In your Session class, override setLanguages() so that it always appends
> your global language (in this case, the string "English") to the incoming
> array of languages. This way, whenever the language is set by either you or
> the framework, the default language is always at the end of the list as a
> 'catch-all'.
>
> In this scenario, a session always has a fallback language which serves as
> the global/default, and you can use Project Builder to manage those
> global/default resources since they too are stored in a language project.

	This is what I'd recommend.  In GUI Cocoa apps, all of the languages  
are typically searched for (the user just determines the order in  
preferences), so in the end one version or another is always found.  The  
LocalizedHelloWorld example looks as though it removes all but one language  
in its setLanguages() override, meaning every resource has to exist in that  
language project for it to be found, losing all the benefits of a search  
order.

	-Carl Lindberg

_______________________________________________________________
Carl Lindberg     Carl_Lindberg@BLaCKSMITH.com (NeXTmail, MIME)

From smiles at tpud.org  Thu Jul  6 12:42:33 2000
From: smiles at tpud.org (Spencer Miles)
Date: Thu Jul  6 11:42:33 2000
Subject: setMasterObject for master/detail WODisplayGroup
Message-ID: <003d01bfe779$de3f6960$4bac2ac0@mt108>

Hello,
    I have two display groups in my main.wo component,  accountDisplayGroup
which points to a table called Account, and billDisplayGroup which is a
Master/Detail group (Entity is 'Bill', Master Entity is 'Account', Detail
key is 'bills').  I'm not completely certain what I'm doing, but I'm
guessing that I need to set the masterObject for the billDisplayGroup equal
to the selectedObject in the accountDisplayGroup so that billDisplayGroup
knows which account we are using.  The code i'm using is as follows:

import com.apple.yellow.foundation.*;
import com.apple.yellow.webobjects.*;
import com.apple.yellow.eocontrol.*;

public class Main extends WOComponent {
    WODisplayGroup accountDisplayGroup;
    WODisplayGroup billDisplayGroup;

    EOEnterpriseObject selection =
(EOEnterpriseObject)accountDisplayGroup.selectedObject();
    billDisplayGroup.setMasterObject(selection);
}

When I compile i recieve the following error:

Main.java:12: Identifier expected.
billDisplayGroup.setMasterObject(selection);
                                                              ^
1 error

My guess is that Identifier is something like putting
(WODisplayGroup)billDisplayGroup.setMasterObject(selection);
But when I do that I recieve a type expected error.  Could someone help me
out here?
Thanks a ton!
-Spencer Miles



From deninger at blue.weeg.uiowa.edu  Thu Jul  6 12:47:44 2000
From: deninger at blue.weeg.uiowa.edu (Michael Deninger)
Date: Thu Jul  6 11:47:44 2000
Subject: WO Development on Lombard Powerbook
Message-ID: <v04210100b58a83b60f6a@[128.255.229.83]>

Hi,

I am leaving on a trip soon, and would like to work on my WO project 
in my spare time during the evenings. Is there any way to develop WO 
on a laptop (1999 "Lombard" PowerBook G3)? I have access to MacOS X 
Server 1.0.1 and Mac OS X DP4. Is there a way to get WO 4.5 up and 
running based on this setup?

I thought about setting up my powerbook in SCSI mode and installing 
OS X Server on it. Would this work (I recall that it won't install on 
the Lombard by iteslf)? Is OS X DP4's WO ProjectBuilder worth trying?

Thanks in advance.

Michael Deninger
The University of Iowa College of Pharmacy
Phone: (319) 335-6513
deninger@blue.weeg.uiowa.edu


From dempseyj at apple.com  Thu Jul  6 12:58:30 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 11:58:30 2000
Subject: setMasterObject for master/detail WODisplayGroup
In-Reply-To: <003d01bfe779$de3f6960$4bac2ac0@mt108>
Message-ID: <B58A23BD.92AB%dempseyj@apple.com>

> public class Main extends WOComponent {
> WODisplayGroup accountDisplayGroup;
> WODisplayGroup billDisplayGroup;
> 
> EOEnterpriseObject selection =
> (EOEnterpriseObject)accountDisplayGroup.selectedObject();
> billDisplayGroup.setMasterObject(selection);
> }

It seems as if your code is just hanging out loose in your Main class.  You
may want to put it inside of a constructor:

public Main(){
super();
EOEnterpriseObject selection =
(EOEnterpriseObject)accountDisplayGroup.selectedObject();
billDisplayGroup.setMasterObject(selection);
}

I've never tried putting code such as that inside a Java initialization
block (heaven forbid!), but the two display groups will be initialized by
the time the call to super() returns.

Another Note:
You want to be sure that the billDisplayGroup (your detail display group) is
set to Fetch On Load.  (Either do it in the config panel in WebObjects
Builder, or programatically).

Doing so makes sure that whenever you change the master object, the display
group will automatically fetch the related detail objects.  Otherwise you
need to manually tell the display group to fetch()  (yuck!).

Hope this helps.

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Spencer Miles <smiles@tpud.org>
> Date: Thu, 06 Jul 2000 11:41:58 -0700
> To: WebObjects Mailing List <webobjects@omnigroup.com>
> Subject: setMasterObject for master/detail WODisplayGroup
> 
> Hello,
> I have two display groups in my main.wo component,  accountDisplayGroup
> which points to a table called Account, and billDisplayGroup which is a
> Master/Detail group (Entity is 'Bill', Master Entity is 'Account', Detail
> key is 'bills').  I'm not completely certain what I'm doing, but I'm
> guessing that I need to set the masterObject for the billDisplayGroup equal
> to the selectedObject in the accountDisplayGroup so that billDisplayGroup
> knows which account we are using.  The code i'm using is as follows:
> 
> import com.apple.yellow.foundation.*;
> import com.apple.yellow.webobjects.*;
> import com.apple.yellow.eocontrol.*;
> 
> public class Main extends WOComponent {
> WODisplayGroup accountDisplayGroup;
> WODisplayGroup billDisplayGroup;
> 
> EOEnterpriseObject selection =
> (EOEnterpriseObject)accountDisplayGroup.selectedObject();
> billDisplayGroup.setMasterObject(selection);
> }
> 
> When I compile i recieve the following error:
> 
> Main.java:12: Identifier expected.
> billDisplayGroup.setMasterObject(selection);
> ^
> 1 error
> 
> My guess is that Identifier is something like putting
> (WODisplayGroup)billDisplayGroup.setMasterObject(selection);
> But when I do that I recieve a type expected error.  Could someone help me
> out here?
> Thanks a ton!
> -Spencer Miles
> 
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From dempseyj at apple.com  Thu Jul  6 12:59:35 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 11:59:35 2000
Subject: Localized resources
In-Reply-To: <200007061838.OAA06928@zaphod.vienna.BLaCKSMITH.com>
Message-ID: <B58A23F6.92AC%dempseyj@apple.com>

> NSBundle will always find a
> global resource before a localized resource when searching for files.  So,
> if a global resource exists, there's no point in having a localized resource.

Note that in a WebObjects application it is the WOResourceManager that is
retrieving file-based resources.  In my testing, WOResourceManager finds a
localized resource BEFORE a global resource.

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: "Carl E. Lindberg" <lindberg@blacksmith.com>
> Reply-To: Carl_Lindberg@blacksmith.com
> Date: Thu, 06 Jul 2000 14:38:58 -0400
> To: James Dempsey <dempseyj@apple.com>
> Cc: Michael Bieri <mb@uptime.ch>, webobjects@omnigroup.com
> Subject: Re: Localized resources
> 
> You wrote:
>> Michael,
>> 
>> There appears to be a limitation in Project Builder in which it will allow
>> a resource to be localized OR global, but not both.
> 
> ProjectBuilder does this for a reason -- NSBundle will always find a
> global resource before a localized resource when searching for files.  So,
> if a global resource exists, there's no point in having a localized resource.
> 
> 
>> Workaround #2 More elegant:
>> Philosophy: Use the functionality that is provided to achieve the desired
>> effect
>> 
>> Make a language project for your global, default language.  (In the US that
>> might be English).  Put all of your 'global' default items in there, and
>> manage it like any other language.
>> 
>> In your Session class, override setLanguages() so that it always appends
>> your global language (in this case, the string "English") to the incoming
>> array of languages. This way, whenever the language is set by either you or
>> the framework, the default language is always at the end of the list as a
>> 'catch-all'.
>> 
>> In this scenario, a session always has a fallback language which serves as
>> the global/default, and you can use Project Builder to manage those
>> global/default resources since they too are stored in a language project.
> 
> This is what I'd recommend.  In GUI Cocoa apps, all of the languages
> are typically searched for (the user just determines the order in
> preferences), so in the end one version or another is always found.  The
> LocalizedHelloWorld example looks as though it removes all but one language
> in its setLanguages() override, meaning every resource has to exist in that
> language project for it to be found, losing all the benefits of a search
> order.
> 
> -Carl Lindberg
> 
> _______________________________________________________________
> Carl Lindberg     Carl_Lindberg@BLaCKSMITH.com (NeXTmail, MIME)
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From dempseyj at apple.com  Thu Jul  6 13:01:57 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 12:01:57 2000
Subject: boolean qualifier?
In-Reply-To: <4.2.2.20000706122127.01392690@hecky.acns.nwu.edu>
Message-ID: <B58A2468.92AE%dempseyj@apple.com>

Jonathan, I would give the ol' "new Integer(1)" a try instead of "new
Boolean(true)".

I haven't tried it myself, but it would seem consistent with other behavior
I've seen.

I'd be interested to know if that works for you.

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: Jonathan Rochkind <j-rochkind@nwu.edu>
> Date: Thu, 06 Jul 2000 12:22:22 -0500
> To: webobjects@omnigroup.com
> Subject: boolean qualifier?
> 
> How do I do an in memory sort on a boolean attribute?
> 
> EOQualifier.qualifierWithQualifierFormat("attribute = true")?
> Or
> "attribute = %@", new NSArray(new Boolean(true)));
> 
> Or some other ObjC-ism I can't guess? What's up?
> 
> --Jonathan
> 
> 
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From michael at stb.nccom.com  Thu Jul  6 13:04:01 2000
From: michael at stb.nccom.com (Michael Gersten)
Date: Thu Jul  6 12:04:01 2000
Subject: Regarding Apple's decision to drop Objective C
Message-ID: <3964D799.7C32D41F@getasia.com>

This is a followup/comment on the Stepwise editorial, "Head for the Ramparts".
The brief summary: We've seen this before. Or: Fool me once, shame on you; fool
me twice, you won't fool me a third time.

The Stepwise article points this out:
Objective C is not being supplanted by java -- Java is not becoming the main
langauge, and objective-C the secondary; OBJECTIVE-C IS BEING THROWN OUT! No
more web objects development in Objective C. AND EOF IS BEING GIVEN TO THE WOF
PEOPLE, NOT THE DESKTOP PEOPLE.

That shout, again: control of EOF is being given to the WOF people; WOF wil be
java-ONLY in 5.0. That means no objective C EOF anywhere.

Yes, objective C will still be around if you use Foundation/Appkit. But no EOF
or DBKit. Anyone want to write a database app around indexing kit?

Think about this. If Apple really wanted to abandon Objective C, because of the
cost of maintaining it, it would be nice if they gave us a release with
functioning ObjC and Java, and the conversion scripts; using that release (call
it 5.0), we could take as much time as needed to get the conversion done. Some
bugs will be uncovered by this, of course; an interm/patch (5.5) would come out.
In 6.0, objective C would all be gone, people had a working version to transfer
their stuff over, everyone is happy.

Instead, in 4.5 we have a buggy java client that cannot handle inherited EO's.
We have a java development environment that is GARBAGE FOR DEBUGGING. It cannot
tell what file you are using for a class when you click on the file (if there
are duplicate names, such as a client side and a parent side class) or when a
breakpoint triggers. I get a number of 
	Fatal exception: java.io.IOException: Pipe broken	APPLICATION EXIT

when I try to debug the java-server side of a java client app. Try using the
'print object' button -- it generate 'print * <var-name>', which jdb doesn't
like (the space between the * and the varname confuse it). I have yet to even be
able to examine something in jdb; I get messages back saying that there is no
symbol 'this' in the current context (yes, this is from jdb, not gdb.).

So, in 4.5, we only have objective C as a reliable development environment. Yet
in 5.0, we have to give it up immediately, no chance for fixes/problems to be
identified.

As annoying as this is, we've seen it before. Not from Apple, from Steve Jobs.
At NeXT, Steve said that they would always support black hardware purchasers
better than intel hardware purchases. That was true for the life of NeXTStep;
but OpenStep was different. To go from 3.2 NS to 4.2 OS required that black
hardware people purchase the same expensive CD that intel people purchased. No
price break of any kind. You couldn't use 4.2 user (cheap, bug fixes) with 3.2
developer. So for some of us (me at least, some others that I knew) there was no
upgrade to openstep.

Back in the black hardware days, my machine was academic. I also, thinking I was
smart, purchased the reinstallation floppies figuring that I 'd have a backup of
the system in case I needed it. Well, sure enough, I did. Later, when I went to
play with DBKit, I found that the reinstallation floppies did not include
sybase. NeXT would not help me out in any way. I had a system with a nice
database programming system, but no usable database; they had adaptors for flat
files, but refused to release it. That was "screw you" number one; the "no
upgrade to openstep" (which, incidently, included EOF which was DBKit's
replacement) was number two. I won't allow a third.

Jobs has dropped software before. Way back when, there was a real nice word
processor called "WriteNow". When NeXTStep went multi-platform, WriteNow was
removed and given to a commercial company. Now granted, giving software to the
community was unfashionable back then, but if that had been done, the software
would still be around, bug fixed, and working. Heck, even if the rumors were
true and it was in 68030 assembly, it would have been ported to the power PC and
fixed up, if not actually C'd.

Now, they are dropping, what? HyperCard? Stepwise reports:

<<
One hacker received a flat "no" when he asked if Apple would release HyperCard
into the open-source arena. Apple cited the time and effort it would take to
tidy everything up in HyperCard and manage the project. Apple would prefer to
allocate such resources to new projects, particularly Mac OS X. 

This opened up a larger open-source debate, prompting Glass to state that, "Open
source will not be a dumping ground for dead products." 
>>

It takes all of 20 minutes to do a 'make clean; gnutar -cz' to put something
into open source, and let someone else manage it. It doesn't cost Apple anything
to give their old, useless (to them) software away, and it makes them look
better to developers (who know that their old systems will never go away
completely).

There's a bunch more in the stepwise article, but there's this thing (talking
about licensing for NT):

>  In the end, Apple has put the question entirely to rest post WWDC.
>  The WebObjects 4.5 licenses have been amended such that you are
>  no longer allowed to run any other Cocoa applications other than
>  those provided by Apple for development. The Yellow Box
>  runtime-license that was available ($3000/10 seats) is
>  discontinued effective September 9, 2000.

Does this mean that I cannot develop a desktop app for YB/NT, and sell it? Even
if I tell people that they have to purchase a $700 unlimited WOF 4.5 package as
well? (Our program is, eventually, going to be a $500/month license sort of
thing, so we can afford a $700 per customer overhead; but it won't be ready by
Sep 9 :-).

And it's still bad no matter how you look at it. Consider our application, at
$500 per month, is expected to go to 1000 customers the first year (vertical
market). That's $6000 per year, 1000 customers, that $6 million the first year
alone. That's not a small software application. We need to be able to do
distributed display -- running the program and data from a central site,
displaying into a remote terminal. Java client would have been perfect, but
because of the inherited EO bug we need the 5.0 fixes. We can't use Objective C
in 5.0, and java debugging in 4.5 isn't good enough for use. So with no upgrade
path, and no workability now, we have to use something like WinFrame/Terminal
Server instead.

Folks, this is a call for action. Send mail to leadership@apple.com, or maybe
try some other addresses (steve.jobs@apple.com might go somewhere). Apple will
listen to its developers if we make a big enough stink. And if they don't, then
this is a call for action for GnuStep and GnuStep Web; lets port them to NT and
solaris.

It occurs to me that the Java to Objective-c Bridging Specifications was kept in
a .jobs file; now that that bridging wil be going away, presumably the .jobs
files will go away as well. Perhaps this is a sign -- what would it take for a
shareholder (I'm not one) to file a motion to replace Jobs as head of Apple with
someone else? It doesn't matter how good of a salesman is at the head if there
are no programmers writing for it.

Michael

(yes, I'm upset. And yes, I waited the hour or two before posting. Heck, it's
been almost a full week since reading the stepwise article, and I'm STILL upset
about it.)

From ricardy.banks at lmco.com  Thu Jul  6 13:07:45 2000
From: ricardy.banks at lmco.com (Banks, Ricardy)
Date: Thu Jul  6 12:07:45 2000
Subject: WOComponent URL
Message-ID: <079B626B05A0D3118B1000508B0EA5E9F81FB9@emss04m05.ems.lmco.com>

How can one get the generated URL of a WOComponent page in a given session?

Thanks,
Ricardy

From dempseyj at apple.com  Thu Jul  6 13:19:02 2000
From: dempseyj at apple.com (James Dempsey)
Date: Thu Jul  6 12:19:02 2000
Subject: unableToSetNilForKey
In-Reply-To: <CD4FCCD776FDD211986F00A0C9A70947284530@SBNT4>
Message-ID: <B58A288A.92B4%dempseyj@apple.com>

What does the object inherit from?  (There is a difference between
NSKeyValueCoding which does not have unableToSetNullForKey, and
EOKeyValueCoding, which does).  In Java 4.5 NSObject implements the former,
EOCustomObject the latter.

And I'm sure that you've double checked the method signature against
EOKeyValueCoding in the JavaBrowser app.  (Between the docs and the Java
Browser, Java Broswer's reading the runtime and is therefore always right).

public void unableToSetNullForKey(String key);

What behavior are you getting when it tries to set the value?  Just an
exception being thrown?  (which implies the super-classes' version is
getting called)  
Could the entity of your EO class in the model file still be set to
EOGenericRecord?  This would cause no custom logic in your custom EO class
to be called since the model file is telling EOF to use EOGenericRecord
instead of your custom class.  I've done *that* a few times...

-James
-- 
James Dempsey
Apple iServices Training
Apple Computer, Inc.

dempsey@apple.com
(408) 974-7817

> From: "Brian P. Marquis" <bmarquis@ogse.com>
> Date: Wed, 05 Jul 2000 14:34:51 -0500
> To: "Multiple recipients of list (E-mail)" <webobjects@omnigroup.com>
> Subject: RE: unableToSetNilForKey
> 
> I've made the following changes to my class, but still get the
> NSInvalidArgumentException, and the println never gets executed. Wierd. Any
> ideas?
> 
> public void unableToSetNullForKey( String keyname ) {
> System.out.println( keyname + "\n" );
> if ( keyname.equals("qty") ) {
> qty = 0;
> } else {
> super.unableToSetNullForKey( keyname );
> }
> }
> 
> 
>> -----Original Message-----
>> From:    Brian P. Marquis [SMTP:bmarquis@ogse.com]
>> Sent:    Wednesday, July 05, 2000 2:05 PM
>> To:    Multiple recipients of list (E-mail)
>> Subject:    unableToSetNilForKey
>> 
>> I need to be able to override unableToSetNilForKey, but I want the default
>> behavoir for the fields I'm not checking. I tried
>> super.unableToSetNilForKey( keyname ); but that method doesn't exist in
>> EOCustomObject.
>> 
>> public void unableToSetNilForKey(String keyname) {
>> if ( keyname.equals("qty") ) {
>> qty = 0;
>> } else {
>> // not sure what goes here
>> }
>> }
>> _______________________________________________
>> WebObjects mailing list
>> WebObjects@omnigroup.com
>> http://www.omnigroup.com/mailman/listinfo/webobjects
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From j-rochkind at nwu.edu  Thu Jul  6 13:22:13 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Thu Jul  6 12:22:13 2000
Subject: WOComponent URL
In-Reply-To: <079B626B05A0D3118B1000508B0EA5E9F81FB9@emss04m05.ems.lmco.
 com>
Message-ID: <4.2.2.20000706142102.02125928@hecky.acns.nwu.edu>

Not very easily. One thing to keep in mind that is that your components 
don't have URLs. Instead what has a URL is a particular action method in a 
particular component---that action method returns a component, true, but 
the URL is really for the action method. Accessing the URL again will 
execute the action method again, not just return the right component.

So, anyway, how do you get this URL?  If you need it for javascript, see 
the WOActionURL reuseable component. I forget if this is in the 
WOExtensions framework or has finally been moved to WebObjects framework in 
4.5.  But it will output in your .html the proper URL for a particular 
action method in your component.

If you need to get this URL in code, not just output it in the .html for 
the javascript, this is harder. I was in the middle of figuring out how to 
do this, and thought I was close to doing it, but then ran out of time and 
had to work on something else. Maybe someone else can suggest something.

Good luck.

--Jonathan

At 03:05 PM 7/6/2000 -0400, you wrote:
>How can one get the generated URL of a WOComponent page in a given session?
>
>Thanks,
>Ricardy
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From max at netstruxr.com  Thu Jul  6 13:32:52 2000
From: max at netstruxr.com (Max Muller)
Date: Thu Jul  6 12:32:52 2000
Subject: EOF errors
Message-ID: <0FXA0081RJFU3V@mta5.snfc21.pbi.net>

> Is it common for EOF to have exceptions like this?

Yes.  Just kidding ;)

>I'm using SQL server,
> two instances of the WO app were running, and these apps were NOT  
handling
> concurrent requests.  The apps just do a very small single insert  
per request:

Looks like the sequences haven't been setup for the database you are  
using (or tables or stored procedures).  I haven't worked with SQL
Server so I'm not familiar with how it generates primary keys, but
that looks to be your issue.  Open EOModeler and click the SQL button  
for that entity.  Look for the SQL that would be used to reset a
sequence or insert into a primary key table.  Hope this helps.

Regards,
	Max

> <pre>NSInternalInconsistencyException:
> _primaryKeyForObject:: EODatabaseContext 0xc98810 is unable to obtain a 
> primary key for FNTransaction object 0xc8fc00
> 	at java.lang.Throwable.&lt;init&gt;(Compiled Code)
> 	at java.lang.Exception.&lt;init&gt;(Compiled Code)
> 	at java.lang.RuntimeException.&lt;init&gt;(Compiled Code)
> 	at com.apple.yellow.foundation.NSException.&lt;init&gt;(Compiled 
> Code)
> 	at FNDatabaseManager.logTransaction(Compiled Code)
> 	at FNRequestManager.handleRequestWithResponse(Compiled Code) 
> 	at DirectAction.defaultAction(Compiled Code)
> </pre>
>
>

From j-rochkind at nwu.edu  Thu Jul  6 13:42:10 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Thu Jul  6 12:42:10 2000
Subject: EOF errors
In-Reply-To: <0FXA0081RJFU3V@mta5.snfc21.pbi.net>
Message-ID: <4.2.2.20000706144051.02150c70@hecky.acns.nwu.edu>

Nope, nope. With MS SQL Server you don't need to do anything like that (set 
up sequences or anything. SQL Server doesn't have sequences, alas. Wish it 
did.) One thing you DO need to do is NOT have the "identity" property set 
on any of your columns. Except I don't think this is the problem, but I'm 
not sure.

I think EOF also doesn't know how to generate it's own compound primary 
keys---if the Entity in question has a compound primary key (more than one 
attribute is set as primary key), then you have to take special measures. 
Maybe that's the problem?

That's all I can think of.

At 12:29 PM 7/6/2000 -0700, you wrote:
> > Is it common for EOF to have exceptions like this?
>
>Yes.  Just kidding ;)
>
> >I'm using SQL server,
> > two instances of the WO app were running, and these apps were NOT
>handling
> > concurrent requests.  The apps just do a very small single insert
>per request:
>
>Looks like the sequences haven't been setup for the database you are
>using (or tables or stored procedures).  I haven't worked with SQL
>Server so I'm not familiar with how it generates primary keys, but
>that looks to be your issue.  Open EOModeler and click the SQL button
>for that entity.  Look for the SQL that would be used to reset a
>sequence or insert into a primary key table.  Hope this helps.
>
>Regards,
>         Max
>
> > <pre>NSInternalInconsistencyException:
> > _primaryKeyForObject:: EODatabaseContext 0xc98810 is unable to obtain a
> > primary key for FNTransaction object 0xc8fc00
> >       at java.lang.Throwable.&lt;init&gt;(Compiled Code)
> >       at java.lang.Exception.&lt;init&gt;(Compiled Code)
> >       at java.lang.RuntimeException.&lt;init&gt;(Compiled Code)
> >       at com.apple.yellow.foundation.NSException.&lt;init&gt;(Compiled
> > Code)
> >       at FNDatabaseManager.logTransaction(Compiled Code)
> >       at FNRequestManager.handleRequestWithResponse(Compiled Code)
> >       at DirectAction.defaultAction(Compiled Code)
> > </pre>
> >
> >
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From annie_morris at forum.cc.utexas.edu  Thu Jul  6 13:48:27 2000
From: annie_morris at forum.cc.utexas.edu (annie_morris)
Date: Thu Jul  6 12:48:27 2000
Subject: FrontBase EOAdaptor error
Message-ID: <6AC4E20EED49D411941400D0B77E52F02C88B0@forum.cc.utexas.edu>

Hi All,

I have migrated my WO 4.5 application from a MacOSX Server to my Solaris 2.7
machine, running FrontBase 2.13.

I have commented out the:

include $(MAKEFILEDIR)/pdo-eoadaptor-linking.make
FRAMEWORKS += FrontBaseEOAdaptor


I am getting this error when I tried to compile it:

ld warning: file
/opt/Apple/Library/Frameworks/EOAccess.framework/Versions/B/EOAccess:
required by
/opt/Apple/Library/Frameworks/FrontBaseEOAdaptor.framework/FrontBaseEOAdapto
r, not found

I have made sure that NEXT_ROOT is /opt/Apple and that 
/opt/Apple/Library/Executables is in my path.


Any pointers you have is greatly appreciated!

Annie

From max at netstruxr.com  Thu Jul  6 13:48:55 2000
From: max at netstruxr.com (Max Muller)
Date: Thu Jul  6 12:48:55 2000
Subject: WO Development on Lombard Powerbook
Message-ID: <0FXA00F0RJS9CQ@mta6.snfc21.pbi.net>

Hi,

> I am leaving on a trip soon, and would like to work on my WO project  
> in my spare time during the evenings. Is there any way to develop WO  
> on a laptop (1999 "Lombard" PowerBook G3)? I have access to MacOS X  
> Server 1.0.1 and Mac OS X DP4. Is there a way to get WO 4.5 up and  
> running based on this setup?

Yep.  Might want to snag a copy of OSXS 1.2 though.  Basicly  
checkout the excellent web page  
http://www.mulle-kybernetik.de/lombard.html for a complete run down  
of the installation.  Pretty straight forward.  Just a warning though  
the Lombard runs at 256 colors, BlueBox doesn't run at all and if  
you have a CD/DVD drive you won't be able to mount CDs.  Other than  
that everything is peachy ;)

> I thought about setting up my powerbook in SCSI mode and installing  
> OS X Server on it. Would this work (I recall that it won't install on  
> the Lombard by iteslf)?

Maybe.  Real issue is that OSXS's CD-ROM driver doesn't support the  
CD/DVD drive of the Lombard.


>Is OS X DP4's WO ProjectBuilder worth trying?

Not for WO dev.

Regards,
	Max


From pierce at twinforces.com  Thu Jul  6 14:24:23 2000
From: pierce at twinforces.com (Pierce T. Wetter III)
Date: Thu Jul  6 13:24:23 2000
Subject: Regarding Apple's decision to drop Objective C
In-Reply-To: <3964D799.7C32D41F@getasia.com>
Message-ID: <B58A38D7.6035%pierce@twinforces.com>

> Stuff about Java having major problems in 4.0 and 4.5

  My point of view:

  In the software industry, until you see it with your own eyes, you pretty
much assume that things will remain broken. Java has some major limitations
compared to Objective-C in WebObjects 4.0 and 4.5.

  So naturally, when we hear that Apple is forcing everyone to move to Java,
that seems incredibly brain damaged. We can't really use Java now, at the
minimum we have to use a mixture of Obj-C and Java. So that means that Apple
is saying "all your web apps will no longer work". Naturally, we're all
quite upset. Those of us who have used Java in other contexts are even more
upset, Java has a ways to go.

  Apple could calm people down pretty easily by listing what they saw as the
limitations of Java, and how they were fixing them in 5.0. If they did it
right, they could spin it as new improved 5.0 features.

  Since they haven't done that, naturally, everyone is upset. Those of us in
the software industry pretty much expect that since Java is broken, it will
stay broken. 

  Specifically:

   1. Why not have "Why Wait" compiling instead of Just-In-Time compiling.
SGI does it... WO apps are _server_ apps. There's not a lot of point to
bytecode in a server app.
  
   2. EOModeler should make two classes ala EOGenerator.
  
   3. java.lang.String sucks eggs. Rancid ones.

   4. Is my app still going to go away for 20 seconds while the garbage
collector masterbates? I'd rather have 1 millisecond per page spent in
retain/release then 20 seconds all at once...

  A pro Java data point:

   It takes .5 seconds for FrontBase to return my 10,000 rows I asked for
and turn them into dictionarys for EOF. It takes EOF 10x that to turn them
into objects (5 seconds). I heard that with the Hotspot stuff, an object can
be allocated in 11 instructions. If 5.0 lets me get those 10,000 rows in 1
seconds total, I'd be more then happy to move to Java: 90% of the
application time is spent in EOF.

   On the other hand, if EOF isn't faster in 5.0, then Apple has shot
themselves in the foot. Why move to a language that doesn't offer them any
actual benefits for server applications?

  Rumor I've heard:

    Apple is planning a 5.0 beta soon, so that people will see it actually
working and not be so upset.

  My reaction:

    They shipped a WOAdaptor that was broken. I suspect the WOF group is
getting farther and farther from their users. Even if 5.0 looks great, I'll
be sceptical until a large site like the Apple Store is running on it, and
in production. 



> Jobs has dropped software before. Way back when, there was a real nice word
> processor called "WriteNow".

   WriteNow was always a commercial product and always owned by T/Maker it
was dropped because it was written entirely in 68K assembly and T/Maker
didn't really have that much interest in porting it. Note that they didn't
port it to the powerPC on the mac...
> 
> Now, they are dropping, what? HyperCard? Stepwise reports:
> 
> <<
> One hacker received a flat "no" when he asked if Apple would release HyperCard
> into the open-source arena. Apple cited the time and effort it would take to
> tidy everything up in HyperCard and manage the project. Apple would prefer to
> allocate such resources to new projects, particularly Mac OS X.
> 
> This opened up a larger open-source debate, prompting Glass to state that,
> "Open
> source will not be a dumping ground for dead products."
>>> 
> 
> It takes all of 20 minutes to do a 'make clean; gnutar -cz' to put something
> into open source, and let someone else manage it. It doesn't cost Apple
> anything
> to give their old, useless (to them) software away, and it makes them look
> better to developers (who know that their old systems will never go away
> completely).

  Apple may have the open source religion, but that doesn't give them the
right to publish other people's code.

  If they bought code or technology from someone else and used it in
hypercard, it would take a significant amount of time to "clean" it. "make
clean" doesn't search through the project heirarchy looking for purchased
code. It takes a significant effort to move something as old as Hypercard
from closed to open code. Not worth it for dead projects. Most people into
that thing use SuperCard.

  In other words, on the mac side of things, Apple was getting beat up for
dropping STREAMS from the tcp/ip stack in Mac OS X (Open Transport is
STREAMS based). However, their streams code was provided by Mentat. If Apple
"open sourced" open transport, if they didn't pull out the Mentat stuff,
they would be responsible for all financial losses to Mentat, plus they
would have undoubtedly violated various contracts.

  Part of what took so long to get Darwin out was that that Apple had to
trace down the source of every single component of NextStep so that that
could isolate the parts that were proprietary to someone other then Apple.

Pierce


From pcwjiang at ihc.com  Thu Jul  6 14:33:57 2000
From: pcwjiang at ihc.com (Wei Jiang)
Date: Thu Jul  6 13:33:57 2000
Subject: Regarding Apple's decision to drop Objective C
Message-ID: <s96498cb.022@ihc.com>


>>> "Pierce T. Wetter III" <pierce@twinforces.com> 07/06/00 02:23PM
>>>
> Stuff about Java having major problems in 4.0 and 4.5

  My point of view:

  In the software industry, until you see it with your own eyes, you
pretty
much assume that things will remain broken. Java has some major
limitations
compared to Objective-C in WebObjects 4.0 and 4.5.

  So naturally, when we hear that Apple is forcing everyone to move to
Java,
that seems incredibly brain damaged. We can't really use Java now, at
the
minimum we have to use a mixture of Obj-C and Java. So that means that
Apple
is saying "all your web apps will no longer work". Naturally, we're
all
quite upset. Those of us who have used Java in other contexts are even
more
upset, Java has a ways to go.

  Apple could calm people down pretty easily by listing what they saw
as the
limitations of Java, and how they were fixing them in 5.0. If they did
it
right, they could spin it as new improved 5.0 features.

  Since they haven't done that, naturally, everyone is upset. Those of
us in
the software industry pretty much expect that since Java is broken, it
will
stay broken. 

  Specifically:

   1. Why not have "Why Wait" compiling instead of Just-In-Time
compiling.
SGI does it... WO apps are _server_ apps. There's not a lot of point
to
bytecode in a server app.
  
   2. EOModeler should make two classes ala EOGenerator.
  
   3. java.lang.String sucks eggs. Rancid ones.

   4. Is my app still going to go away for 20 seconds while the
garbage
collector masterbates? I'd rather have 1 millisecond per page spent in
retain/release then 20 seconds all at once...

  A pro Java data point:

   It takes .5 seconds for FrontBase to return my 10,000 rows I asked
for
and turn them into dictionarys for EOF. It takes EOF 10x that to turn
them
into objects (5 seconds). I heard that with the Hotspot stuff, an
object can
be allocated in 11 instructions. If 5.0 lets me get those 10,000 rows
in 1
seconds total, I'd be more then happy to move to Java: 90% of the
application time is spent in EOF.

   On the other hand, if EOF isn't faster in 5.0, then Apple has shot
themselves in the foot. Why move to a language that doesn't offer them
any
actual benefits for server applications?

  Rumor I've heard:

    Apple is planning a 5.0 beta soon, so that people will see it
actually
working and not be so upset.

  My reaction:

    They shipped a WOAdaptor that was broken. I suspect the WOF group
is
getting farther and farther from their users. Even if 5.0 looks great,
I'll
be sceptical until a large site like the Apple Store is running on it,
and
in production. 



> Jobs has dropped software before. Way back when, there was a real
nice word
> processor called "WriteNow".

   WriteNow was always a commercial product and always owned by T/Maker
it
was dropped because it was written entirely in 68K assembly and
T/Maker
didn't really have that much interest in porting it. Note that they
didn't
port it to the powerPC on the mac...
> 
> Now, they are dropping, what? HyperCard? Stepwise reports:
> 
> <<
> One hacker received a flat "no" when he asked if Apple would release
HyperCard
> into the open-source arena. Apple cited the time and effort it would
take to
> tidy everything up in HyperCard and manage the project. Apple would
prefer to
> allocate such resources to new projects, particularly Mac OS X.
> 
> This opened up a larger open-source debate, prompting Glass to state
that,
> "Open
> source will not be a dumping ground for dead products."
>>> 
> 
> It takes all of 20 minutes to do a 'make clean; gnutar -cz' to put
something
> into open source, and let someone else manage it. It doesn't cost
Apple
> anything
> to give their old, useless (to them) software away, and it makes them
look
> better to developers (who know that their old systems will never go
away
> completely).

  Apple may have the open source religion, but that doesn't give them
the
right to publish other people's code.

  If they bought code or technology from someone else and used it in
hypercard, it would take a significant amount of time to "clean" it.
"make
clean" doesn't search through the project heirarchy looking for
purchased
code. It takes a significant effort to move something as old as
Hypercard
from closed to open code. Not worth it for dead projects. Most people
into
that thing use SuperCard.

  In other words, on the mac side of things, Apple was getting beat up
for
dropping STREAMS from the tcp/ip stack in Mac OS X (Open Transport is
STREAMS based). However, their streams code was provided by Mentat. If
Apple
"open sourced" open transport, if they didn't pull out the Mentat
stuff,
they would be responsible for all financial losses to Mentat, plus
they
would have undoubtedly violated various contracts.

  Part of what took so long to get Darwin out was that that Apple had
to
trace down the source of every single component of NextStep so that
that
could isolate the parts that were proprietary to someone other then
Apple.

Pierce

_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com 
http://www.omnigroup.com/mailman/listinfo/webobjects

From j-rochkind at nwu.edu  Thu Jul  6 14:41:04 2000
From: j-rochkind at nwu.edu (Jonathan Rochkind)
Date: Thu Jul  6 13:41:04 2000
Subject: Regarding Apple's decision to drop Objective C
In-Reply-To: <B58A38D7.6035%pierce@twinforces.com>
References: <3964D799.7C32D41F@getasia.com>
Message-ID: <4.2.2.20000706154138.02165968@hecky.acns.nwu.edu>

At 01:23 PM 7/6/2000 -0700, you wrote:
>   Apple could calm people down pretty easily by listing what they saw as the
>limitations of Java, and how they were fixing them in 5.0. If they did it
>right, they could spin it as new improved 5.0 features.

Perhaps most importantly, as someone that right now codes exclusively in 
Java anyway (I'm the enemy!), a decent debugger that works with Java is 
SORELY needed.

Debugging my apps, especially weird stuff with EOF, is a incredibly huge 
time drain because of the lack of a decent debugger. If I had a debugger 
that actually worked, and could trace not only my own code but through 
framework code too, that would be incredible.



>   Since they haven't done that, naturally, everyone is upset. Those of us in
>the software industry pretty much expect that since Java is broken, it will
>stay broken.
>
>   Specifically:
>
>    1. Why not have "Why Wait" compiling instead of Just-In-Time compiling.
>SGI does it... WO apps are _server_ apps. There's not a lot of point to
>bytecode in a server app.
>
>    2. EOModeler should make two classes ala EOGenerator.
>
>    3. java.lang.String sucks eggs. Rancid ones.
>
>    4. Is my app still going to go away for 20 seconds while the garbage
>collector masterbates? I'd rather have 1 millisecond per page spent in
>retain/release then 20 seconds all at once...
>
>   A pro Java data point:
>
>    It takes .5 seconds for FrontBase to return my 10,000 rows I asked for
>and turn them into dictionarys for EOF. It takes EOF 10x that to turn them
>into objects (5 seconds). I heard that with the Hotspot stuff, an object can
>be allocated in 11 instructions. If 5.0 lets me get those 10,000 rows in 1
>seconds total, I'd be more then happy to move to Java: 90% of the
>application time is spent in EOF.
>
>    On the other hand, if EOF isn't faster in 5.0, then Apple has shot
>themselves in the foot. Why move to a language that doesn't offer them any
>actual benefits for server applications?
>
>   Rumor I've heard:
>
>     Apple is planning a 5.0 beta soon, so that people will see it actually
>working and not be so upset.
>
>   My reaction:
>
>     They shipped a WOAdaptor that was broken. I suspect the WOF group is
>getting farther and farther from their users. Even if 5.0 looks great, I'll
>be sceptical until a large site like the Apple Store is running on it, and
>in production.
>
>
>
> > Jobs has dropped software before. Way back when, there was a real nice word
> > processor called "WriteNow".
>
>    WriteNow was always a commercial product and always owned by T/Maker it
>was dropped because it was written entirely in 68K assembly and T/Maker
>didn't really have that much interest in porting it. Note that they didn't
>port it to the powerPC on the mac...
> >
> > Now, they are dropping, what? HyperCard? Stepwise reports:
> >
> > <<
> > One hacker received a flat "no" when he asked if Apple would release 
> HyperCard
> > into the open-source arena. Apple cited the time and effort it would 
> take to
> > tidy everything up in HyperCard and manage the project. Apple would 
> prefer to
> > allocate such resources to new projects, particularly Mac OS X.
> >
> > This opened up a larger open-source debate, prompting Glass to state that,
> > "Open
> > source will not be a dumping ground for dead products."
> >>>
> >
> > It takes all of 20 minutes to do a 'make clean; gnutar -cz' to put 
> something
> > into open source, and let someone else manage it. It doesn't cost Apple
> > anything
> > to give their old, useless (to them) software away, and it makes them look
> > better to developers (who know that their old systems will never go away
> > completely).
>
>   Apple may have the open source religion, but that doesn't give them the
>right to publish other people's code.
>
>   If they bought code or technology from someone else and used it in
>hypercard, it would take a significant amount of time to "clean" it. "make
>clean" doesn't search through the project heirarchy looking for purchased
>code. It takes a significant effort to move something as old as Hypercard
>from closed to open code. Not worth it for dead projects. Most people into
>that thing use SuperCard.
>
>   In other words, on the mac side of things, Apple was getting beat up for
>dropping STREAMS from the tcp/ip stack in Mac OS X (Open Transport is
>STREAMS based). However, their streams code was provided by Mentat. If Apple
>"open sourced" open transport, if they didn't pull out the Mentat stuff,
>they would be responsible for all financial losses to Mentat, plus they
>would have undoubtedly violated various contracts.
>
>   Part of what took so long to get Darwin out was that that Apple had to
>trace down the source of every single component of NextStep so that that
>could isolate the parts that were proprietary to someone other then Apple.
>
>Pierce
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects




From kwuolle at ceiss.org  Thu Jul  6 14:44:14 2000
From: kwuolle at ceiss.org (Kyle Wuolle)
Date: Thu Jul  6 13:44:14 2000
Subject: Regarding Apple's decision to drop Objective C
Message-ID: <7F629D3E76A2D3118F1C00508B73057712D69D@elara.ceiss.org>

Help is on the way... 
There is a module / add-on for debugging java using the GDB coming out
shortly... 
My College instructor is working on it over the summer.

>   Apple could calm people down pretty easily by listing what they saw as
the
>limitations of Java, and how they were fixing them in 5.0. If they did it
>right, they could spin it as new improved 5.0 features.

Perhaps most importantly, as someone that right now codes exclusively in 
Java anyway (I'm the enemy!), a decent debugger that works with Java is 
SORELY needed.

Debugging my apps, especially weird stuff with EOF, is a incredibly huge 
time drain because of the lack of a decent debugger. If I had a debugger 
that actually worked, and could trace not only my own code but through 
framework code too, that would be incredible.



>   Since they haven't done that, naturally, everyone is upset. Those of us
in
>the software industry pretty much expect that since Java is broken, it will
>stay broken.
>
>   Specifically:
>
>    1. Why not have "Why Wait" compiling instead of Just-In-Time compiling.
>SGI does it... WO apps are _server_ apps. There's not a lot of point to
>bytecode in a server app.
>
>    2. EOModeler should make two classes ala EOGenerator.
>
>    3. java.lang.String sucks eggs. Rancid ones.
>
>    4. Is my app still going to go away for 20 seconds while the garbage
>collector masterbates? I'd rather have 1 millisecond per page spent in
>retain/release then 20 seconds all at once...
>
>   A pro Java data point:
>
>    It takes .5 seconds for FrontBase to return my 10,000 rows I asked for
>and turn them into dictionarys for EOF. It takes EOF 10x that to turn them
>into objects (5 seconds). I heard that with the Hotspot stuff, an object
can
>be allocated in 11 instructions. If 5.0 lets me get those 10,000 rows in 1
>seconds total, I'd be more then happy to move to Java: 90% of the
>application time is spent in EOF.
>
>    On the other hand, if EOF isn't faster in 5.0, then Apple has shot
>themselves in the foot. Why move to a language that doesn't offer them any
>actual benefits for server applications?
>
>   Rumor I've heard:
>
>     Apple is planning a 5.0 beta soon, so that people will see it actually
>working and not be so upset.
>
>   My reaction:
>
>     They shipped a WOAdaptor that was broken. I suspect the WOF group is
>getting farther and farther from their users. Even if 5.0 looks great, I'll
>be sceptical until a large site like the Apple Store is running on it, and
>in production.
>
>
>
> > Jobs has dropped software before. Way back when, there was a real nice
word
> > processor called "WriteNow".
>
>    WriteNow was always a commercial product and always owned by T/Maker it
>was dropped because it was written entirely in 68K assembly and T/Maker
>didn't really have that much interest in porting it. Note that they didn't
>port it to the powerPC on the mac...
> >
> > Now, they are dropping, what? HyperCard? Stepwise reports:
> >
> > <<
> > One hacker received a flat "no" when he asked if Apple would release 
> HyperCard
> > into the open-source arena. Apple cited the time and effort it would 
> take to
> > tidy everything up in HyperCard and manage the project. Apple would 
> prefer to
> > allocate such resources to new projects, particularly Mac OS X.
> >
> > This opened up a larger open-source debate, prompting Glass to state
that,
> > "Open
> > source will not be a dumping ground for dead products."
> >>>
> >
> > It takes all of 20 minutes to do a 'make clean; gnutar -cz' to put 
> something
> > into open source, and let someone else manage it. It doesn't cost Apple
> > anything
> > to give their old, useless (to them) software away, and it makes them
look
> > better to developers (who know that their old systems will never go away
> > completely).
>
>   Apple may have the open source religion, but that doesn't give them the
>right to publish other people's code.
>
>   If they bought code or technology from someone else and used it in
>hypercard, it would take a significant amount of time to "clean" it. "make
>clean" doesn't search through the project heirarchy looking for purchased
>code. It takes a significant effort to move something as old as Hypercard
>from closed to open code. Not worth it for dead projects. Most people into
>that thing use SuperCard.
>
>   In other words, on the mac side of things, Apple was getting beat up for
>dropping STREAMS from the tcp/ip stack in Mac OS X (Open Transport is
>STREAMS based). However, their streams code was provided by Mentat. If
Apple
>"open sourced" open transport, if they didn't pull out the Mentat stuff,
>they would be responsible for all financial losses to Mentat, plus they
>would have undoubtedly violated various contracts.
>
>   Part of what took so long to get Darwin out was that that Apple had to
>trace down the source of every single component of NextStep so that that
>could isolate the parts that were proprietary to someone other then Apple.
>
>Pierce
>
>_______________________________________________
>WebObjects mailing list
>WebObjects@omnigroup.com
>http://www.omnigroup.com/mailman/listinfo/webobjects



_______________________________________________
WebObjects mailing list
WebObjects@omnigroup.com
http://www.omnigroup.com/mailman/listinfo/webobjects

From ricardo at mpv.com  Thu Jul  6 14:48:33 2000
From: ricardo at mpv.com (Ricardo J. Parada)
Date: Thu Jul  6 13:48:33 2000
Subject: Regarding Apple's decision to drop Objective C
In-Reply-To: <B58A38D7.6035%pierce@twinforces.com>
Message-ID: <f000706155351F936@mpv.com>

Any clues as to when we can expect WebObjects 5.0 seeds?

:-)


From pierce at twinforces.com  Thu Jul  6 14:53:15 2000
From: pierce at twinforces.com (Pierce T. Wetter III)
Date: Thu Jul  6 13:53:15 2000
Subject: Regarding Apple's decision to drop Objective C
In-Reply-To: <4.2.2.20000706154138.02165968@hecky.acns.nwu.edu>
Message-ID: <B58A3FB8.604E%pierce@twinforces.com>

on 7/6/00 1:43 PM, Jonathan Rochkind at j-rochkind@nwu.edu wrote:

> At 01:23 PM 7/6/2000 -0700, you wrote:
>> Apple could calm people down pretty easily by listing what they saw as the
>> limitations of Java, and how they were fixing them in 5.0. If they did it
>> right, they could spin it as new improved 5.0 features.
> 
> Perhaps most importantly, as someone that right now codes exclusively in
> Java anyway (I'm the enemy!), a decent debugger that works with Java is
> SORELY needed.
> 
> Debugging my apps, especially weird stuff with EOF, is a incredibly huge
> time drain because of the lack of a decent debugger. If I had a debugger
> that actually worked, and could trace not only my own code but through
> framework code too, that would be incredible.


   You're not the enemy. Bugs are the enemy. I'd use Java if I could, but as
long as my apps run better in Obj-C and I'm more productive in ObjC, I'll
use that. That's the number one reason all of us ObjC WO people are
screaming about ObjC leaving. ObjC works, Java doesn't (try to fix the
scheduler in 4.5 using pure java), and we're supposed to be happy?

 Pierce


From ghopson at novazen.com  Thu Jul  6 15:08:01 2000
From: ghopson at novazen.com (Geoff Hopson)
Date: Thu Jul  6 14:08:01 2000
Subject: Regarding Apple's decision to drop Objective C
Message-ID: <200007062106.OAA19587@scyther.omnigroup.com>

I seem to remember Ernie Prabhakar trying to petition NeXT/Apple  
back in the past, and a quick search revealed the following  
article...the last paragraph caught my eye.

http://www.omnigroup.com/OldLook/MailArchive/MacOSX-talk/1997/0003.html

In the UK, we call this "poacher turned gamekeeper".....maybe Ernie  
should get a petition from developers, just as he was advocating back  
in 1997...or set something up so that he, now he is head of Product  
Marketing for WebObjects, can listen to us WO/EOF developers.

Apologies for this not being a "dev" post, but I couldn't resist :-)  
And apologies to Ernie for raking over the past like this. But  
please listen and hear us!

geoff


>
> This is a followup/comment on the Stepwise editorial, "Head for  
the Ramparts".
> The brief summary: We've seen this before. Or: Fool me once, shame  
on you; fool
> me twice, you won't fool me a third time.
>
> The Stepwise article points this out:
> Objective C is not being supplanted by java -- Java is not  
becoming the main
> langauge, and objective-C the secondary; OBJECTIVE-C IS BEING  
THROWN OUT! No
> more web objects development in Objective C. AND EOF IS BEING  
GIVEN TO THE WOF
> PEOPLE, NOT THE DESKTOP PEOPLE.
>
> That shout, again: control of EOF is being given to the WOF  
people; WOF wil be
> java-ONLY in 5.0. That means no objective C EOF anywhere.
>
> Yes, objective C will still be around if you use  
Foundation/Appkit. But no EOF
> or DBKit. Anyone want to write a database app around indexing kit? 
>
> Think about this. If Apple really wanted to abandon Objective C,  
because of the
> cost of maintaining it, it would be nice if they gave us a release with 
> functioning ObjC and Java, and the conversion scripts; using that  
release (call
> it 5.0), we could take as much time as needed to get the  
conversion done. Some
> bugs will be uncovered by this, of course; an interm/patch (5.5)  
would come out.
> In 6.0, objective C would all be gone, people had a working  
version to transfer
> their stuff over, everyone is happy.
>
> Instead, in 4.5 we have a buggy java client that cannot handle  
inherited EO's.
> We have a java development environment that is GARBAGE FOR  
DEBUGGING. It cannot
> tell what file you are using for a class when you click on the  
file (if there
> are duplicate names, such as a client side and a parent side  
class) or when a
> breakpoint triggers. I get a number of
> 	Fatal exception: java.io.IOException: Pipe broken	 
APPLICATION EXIT
>
> when I try to debug the java-server side of a java client app. Try  
using the
> 'print object' button -- it generate 'print * <var-name>', which  
jdb doesn't
> like (the space between the * and the varname confuse it). I have  
yet to even be
> able to examine something in jdb; I get messages back saying that  
there is no
> symbol 'this' in the current context (yes, this is from jdb, not gdb.). 
>
> So, in 4.5, we only have objective C as a reliable development  
environment. Yet
> in 5.0, we have to give it up immediately, no chance for  
fixes/problems to be
> identified.
>
> As annoying as this is, we've seen it before. Not from Apple, from  
Steve Jobs.
> At NeXT, Steve said that they would always support black hardware  
purchasers
> better than intel hardware purchases. That was true for the life  
of NeXTStep;
> but OpenStep was different. To go from 3.2 NS to 4.2 OS required  
that black
> hardware people purchase the same expensive CD that intel people  
purchased. No
> price break of any kind. You couldn't use 4.2 user (cheap, bug  
fixes) with 3.2
> developer. So for some of us (me at least, some others that I  
knew) there was no
> upgrade to openstep.
>
> Back in the black hardware days, my machine was academic. I also,  
thinking I was
> smart, purchased the reinstallation floppies figuring that I 'd  
have a backup of
> the system in case I needed it. Well, sure enough, I did. Later,  
when I went to
> play with DBKit, I found that the reinstallation floppies did not  
include
> sybase. NeXT would not help me out in any way. I had a system with  
a nice
> database programming system, but no usable database; they had  
adaptors for flat
> files, but refused to release it. That was "screw you" number one;  
the "no
> upgrade to openstep" (which, incidently, included EOF which was DBKit's 
> replacement) was number two. I won't allow a third.
>
> Jobs has dropped software before. Way back when, there was a real  
nice word
> processor called "WriteNow". When NeXTStep went multi-platform,  
WriteNow was
> removed and given to a commercial company. Now granted, giving  
software to the
> community was unfashionable back then, but if that had been done,  
the software
> would still be around, bug fixed, and working. Heck, even if the  
rumors were
> true and it was in 68030 assembly, it would have been ported to  
the power PC and
> fixed up, if not actually C'd.
>
> Now, they are dropping, what? HyperCard? Stepwise reports:
>
> <<
> One hacker received a flat "no" when he asked if Apple would  
release HyperCard
> into the open-source arena. Apple cited the time and effort it  
would take to
> tidy everything up in HyperCard and manage the project. Apple  
would prefer to
> allocate such resources to new projects, particularly Mac OS X.
>
> This opened up a larger open-source debate, prompting Glass to  
state that, "Open
> source will not be a dumping ground for dead products."
> >>
>
> It takes all of 20 minutes to do a 'make clean; gnutar -cz' to put  
something
> into open source, and let someone else manage it. It doesn't cost  
Apple anything
> to give their old, useless (to them) software away, and it makes  
them look
> better to developers (who know that their old systems will never  
go away
> completely).
>
> There's a bunch more in the stepwise article, but there's this  
thing (talking
> about licensing for NT):
>
> >  In the end, Apple has put the question entirely to rest post WWDC. 
> >  The WebObjects 4.5 licenses have been amended such that you are 
> >  no longer allowed to run any other Cocoa applications other than 
> >  those provided by Apple for development. The Yellow Box
> >  runtime-license that was available ($3000/10 seats) is
> >  discontinued effective September 9, 2000.
>
> Does this mean that I cannot develop a desktop app for YB/NT, and  
sell it? Even
> if I tell people that they have to purchase a $700 unlimited WOF  
4.5 package as
> well? (Our program is, eventually, going to be a $500/month  
license sort of
> thing, so we can afford a $700 per customer overhead; but it won't  
be ready by
> Sep 9 :-).
>
> And it's still bad no matter how you look at it. Consider our  
application, at
> $500 per month, is expected to go to 1000 customers the first year  
(vertical
> market). That's $6000 per year, 1000 customers, that $6 million  
the first year
> alone. That's not a small software application. We need to be able  
to do
> distributed display -- running the program and data from a central  
site,
> displaying into a remote terminal. Java client would have been  
perfect, but
> because of the inherited EO bug we need the 5.0 fixes. We can't  
use Objective C
> in 5.0, and java debugging in 4.5 isn't good enough for use. So  
with no upgrade
> path, and no workability now, we have to use something like  
WinFrame/Terminal
> Server instead.
>
> Folks, this is a call for action. Send mail to  
leadership@apple.com, or maybe
> try some other addresses (steve.jobs@apple.com might go  
somewhere). Apple
> will
> listen to its developers if we make a big enough stink. And if  
they don't, then
> this is a call for action for GnuStep and GnuStep Web; lets port  
them to NT and
> solaris.
>
> It occurs to me that the Java to Objective-c Bridging  
Specifications was kept in
> a .jobs file; now that that bridging wil be going away, presumably  
the .jobs
> files will go away as well. Perhaps this is a sign -- what would  
it take for a
> shareholder (I'm not one) to file a motion to replace Jobs as head  
of Apple with
> someone else? It doesn't matter how good of a salesman is at the  
head if there
> are no programmers writing for it.
>
> Michael
>
> (yes, I'm upset. And yes, I waited the hour or two before posting.  
Heck, it's
> been almost a full week since reading the stepwise article, and  
I'm STILL upset
> about it.)
> _______________________________________________
> EOF mailing list
> EOF@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/eof
>
>

From piers.walter at ilink.de  Thu Jul  6 15:14:03 2000
From: piers.walter at ilink.de (Piers Uso Walter)
Date: Thu Jul  6 14:14:03 2000
Subject: WO Development on Lombard Powerbook
In-Reply-To: <v04210100b58a83b60f6a@[128.255.229.83]>
Message-ID: <0007062312.AA4388745@eric>

Michael Deninger <deninger@blue.weeg.uiowa.edu> wrote:
> Hi,
> 
> I am leaving on a trip soon, and would like to work on my WO project 
> in my spare time during the evenings. Is there any way to develop WO 
> on a laptop (1999 "Lombard" PowerBook G3)? I have access to MacOS X 
> Server 1.0.1 and Mac OS X DP4. Is there a way to get WO 4.5 up and 
> running based on this setup?

I'm running Mac OS X Server 1.2 / WO 4.0 on a 1999 "Lombard" PowerBook G3 
and am fairly satisfied. I haven't done much with WO 4.5 yet, but it 
definitely seems to run as well.

There are some problematic issues though, due to the fact that this is 
non-supported hardware. These problems are detailed in the following 
(somewhat dated) text that I wrote in January:




I'll start with the installation procedures


Hardware / Software

The following pertains to the 1999 "Lombard" PowerBook G3 (bronze keyboard)
and Mac OS X Server 1.2 (full version) only. Mac OS X Server 1.0.x dies NOT
work on this PowerBook model (but supposedly on older models). I don't know  

if my setup would work on older G3 PowerBooks, and I've been led to believe  

that X Server 1.2 will NOT run on the current PowerBooks (Pismo). Judging  
from the problems of G4 machines and the X Server 1.2 update, I assume that  

you need the full OSXS version for this to work, I don't expect the combo  
of Mac OS X Server 1.0 + 1.2 update to be installable on the PowerBook.


Partitioning

When using more than one partition: install Mac OS on the first, Mac OS X  
Server on one of the following partitions (or else the Mac's boot switching  

mechanism won't work).


Installation of Mac OS X Server 1.2

When installing on a PowerBook, the Mac OS X Server Installer stops with the 
 
message that this hardware is not supported. One of the menus  
("Configuration"? I forgot the exact name.) lets you specify that you'd like 
 
to install the software on non supported hardware. When you've done this,  
the Installer still shows the error message, but lets you continue [but 
don't  
even try this without a genuine CD-ROM drive - the DVD won't work].

Order of installation (for an installation without WebObjects, you don't  
need the second and third step):
 - Mac OS X Server 1.2 CD: install Mac OS X Server 1.2 according to manual
   (remember not to install this on the first partition if you also want to
   install Mac OS)
 - WebObjects 4.0.1 CD: install /Mac_OS_X_Server/WebObjectsDeveloper.mpkg
 - Mac OS X Server 1.2 CD: install
   /System/Installation/Packages/UpdateWO40_Developer.mpkg

DO NOT install the WebObjects 4.0.1 Patch 2. Apple states: "The MacOS X  
Server version of WebObjects 4.0.1 Patch 2 is intended for versions of MacOS 
 
X Server earlier than 1.2.  Users with 1.2 should NOT install this patch. 
...  
We are dedicated to supporting our OS X Server 1.2 users.  Please stay tuned 
 
to this list for further announcements."


Which Mac OS version should be installed on the first partition?

If you'd like to experiment: Mac OS X Developer Preview 2 (I haven't tried 
this).
If it should be the latest and finest version: Mac OS 9 (I haven't tried 
this).
If the BlueBox should also be able to boot from this partition: Mac OS 8.6  
(that's the configuration I've got running).


Installation of Mac OS 8.6 on the first partition

If you've recently purchased your PowerBook, it includes a Mac OS 9 CD (and  

not a Mac OS 8.6 CD). You can, however, install Mac OS 8.6 from the Blue 
Box:
 - start BlueBox (the start disk is copied upon the first launch and the  
BlueBox hangs afterwards - starting with the second attempt, it'll work)
 - Copy everything from the BlueBox start disk to the first partition.
 - Choose the first partition in the start volume control panel, so that the 
 
BlueBox will boot from this partition in the future.
 - Copy the system disk folder from the utilities folder of the Mac  
partition of the Mac OS X Server 1.2 CD to the newly copied utilities folder 
 
on the first partition.
 - Copy the system disk extension from the system disk folder in the  
utilities folder on the first partition into the system folder on the first  

partition.



Now on to supported and non supported features:



Screen resolution of the external monitor

You can't set the resolution of the external monitor under Mac OS X Server - 
 
it defaults to 640 x 480 pixel with 256 colors.

You may however configure this under Mac OS:
 - Hook up the external monitor and start the PowerBook with Mac OS 8.6 from
   the first partition (press the alt key when booting).
 - Use the monitors & sound control panel or the control strip settings to
   configure both screens (e.g. internally 1024 x 768, thousands of colors
   and externally 1280 x 1024, 75 Hz, thousands of colors).
 - Use the system disk program to set the Mac OS X Server partition as start
   partition and restart the computer.
 - Mac OS X Server does not seem to support the simultaneous use of both
   screens, but at least the resolution of the external monitor has changed
   (other than the bit depth which still is at 256 colors).



USB devices

So far, I have not been able to get the external (USB-) keyboard or the  
external (USB-) mouse to work. I currently assume that Mac OS X Server 1.2  
does not support USB on the PowerBook (the internal keyboard and trackpad 
are  
still ADB, from what I hear).



DVD-ROM drive

Other than the DVD-ROM drive of the blue and white G3 or the G4, the 
PowerBook's  
DVD-ROM drive is definitely not supported. It is not even detected as a 
CD-ROM  
drive. If you've got a DVD equipped PowerBook, you'll either have to borrow 
a  
CD-ROM drive, or purchase one as a replacement unit (expensive!).



Power management

There is no power management under Mac OS X Server 1.2. If your batteries  
run out of power, the PowerBook will just stop dead in its tracks. No nice  
and clean shutdown and no prior warning.

Sometimes (about once a week) the mouse cursor stops and the PowerBook turns 
itself off without any warning. Since I'm usually not running on batteries, 
lack of power can't be the problem. I thought it might be a heat problem, 
but I'm not convinced. I have learned to live with having to do a disk check 
once in a while...



Blue Box

The Blue Box does NOT work on the PowerBook! In order to run Mac OS 
Software, I have to reboot the machine.



Summary of my experiences of the first three weeks

I find the lack of external keyboard and mouse hard to bear. The lack of the 
BlueBox is nasty as well, but not any worse than the last ten years under 
Nextstep / Openstep, so I can handle this. Everything else I can perfectly 
live with. All in all, I've had no problems so far (just like a guy who used 
my CD-ROM drive to install X Server 1.2 on his DVD equipped PowerBook). I 
have heard about other people that did have installation problems, though.




You might want to check http://www.mulle-kybernetik.com/lombard.html as 
well. They have an article on installing Mac OS X Server 1.2 on Lombard 400 
MHz Powerbooks with a DVD drive, copying the installation data over the 
ethernet.


Regards

Piers
-- 
Piers Uso Walter <piers@ilink.de>
ilink Kommunikationssysteme GmbH

From R.Stephens at motorola.com  Thu Jul  6 15:35:22 2000
From: R.Stephens at motorola.com (Stephens Robert-QA4078)
Date: Thu Jul  6 14:35:22 2000
Subject: WO 3.5.1 on Windows2000
Message-ID: <BB60654DFAA8D311B16400508B6F2538030B0F25@il27exm05.cig.mot.com>

All,

Odd as it sounds we have a WO 3.5.1 license that we're trying to run on a
Windows2000 server. Has anyone been able to get this configuration
operational? It looks like we can compile and start the launch just fine but
we keep getting "no response from application" messages. It looks like WO4.5
applications have URL's that contain "localhost:1030/....." where the port
changes each time an app is launched. Is this an issue related to IIS on
Windows2000?

thanks,

Robert Stephens
Motorola
r.stephens@motorola.com <mailto:r.stephens@motorola.com>  
ph:847-632-5949 pager: 1109981@skytel.com <mailto:1109981@skytel.com> 
1501 W. Shure Drive IL65-3231AR
Arlington Heights, IL 60004

From erik at x101.net  Thu Jul  6 15:46:07 2000
From: erik at x101.net (Erik Doernenburg)
Date: Thu Jul  6 14:46:07 2000
Subject: Two Apps - one Database -> Syncronization?
Message-ID: <E13AJT2-000P7O-00@oracle.clara.net>

<fontfamily><param>Helvetica</param>The change notification framework =
also forks off a thread for each instance it notifies. This can be less =
than optimal if you have, say, 50 or 100 instances. I know that Marcus =
M=FCller (znek@mulle-kybernetik.com) has experimented with UDP =
broadcasts but there was a problem because the socket implementation in =
Java cannot set the option SO_REUSEPORT (which, of course, is necessary =
when multiple instances run on the same host.)


Regarding the general discussion I would agree with the EOF team not to =
include it into the WO framework. This area involves too many trade-offs =
and most solutions exploit certain pecularities in the given =
design/requirements to achieve efficiency for *that* case. Nonetheless =
Apple could polish up Dave Neumann's framework and bundle it with WO...


cheers,

erik




> From: "Paul R. Summermatter" <<paulrs@lgs-systems.com>=20

> Date: 2000-07-06 00:08:07 +0100=20

> To: "'Gary Teter'" <<bigdog@bulldogbeach.com>=20

> Subject: RE: Two Apps - one Database -> Syncronization?=20

> Cc: "'webobjects@omnigroup.com'" <<webobjects@omnigroup.com>=20

> =20

> Gary,=20

> =20

> 	While I was very happy to see Dave be so generous as to offer =
his=20

> time to provide a possible solution to the problem, I suspect even he =
would=20

> admit his solution is not perfect.  In particular, unless something =
has=20

> changed, the code used direct actions to distribute notifications.  =
There is=20

> probably a significant amount of unecessary overhead associated with =
this=20

> type of communication mechanism.  Further, what if you have a tool =
running=20

> that has nothing to do with WOF and cannot handle direct actions, but =
needs=20

> to be notified of changes.  Also, I do not recall any error checking =
(ie,=20

> what happens if one of the other app instances does not get a =
notification=20

> because of a communication failure).  For these and other reasons, I =
think=20

> Apple needs to put some more effort into addressing this issue.=20

> =20

> Regards,=20

> Paul=20

> =20

> [ -----Original Message-----=20

> [ From: Gary Teter [mailto:bigdog@bulldogbeach.com]=20

> [ Sent: Tuesday, July 04, 2000 4:04 PM=20

> [ To: 'webobjects@omnigroup.com'=20

> [ Cc: Paul R. Summermatter; Daniel Bleisteiner=20

> [ Subject: Re: Two Apps - one Database -> Syncronization?=20

> [ =20

> [ =20

> [ on 7/4/00 12:43 PM, Paul R. Summermatter at =20

> [ paulrs@lgs-systems.com wrote:=20

> [ =20

> [ > This is a major issue that needs addressing by Apple.  Many of us=20=


> [ > who have dealt with large projects or projects which =20

> [ require up to the=20

> [ > second data synchronization have endeavored to build =20

> [ various flavors of=20

> [ > distributed notification servers to deal with this problem =20

> [ (I've done this=20

> [ > twice now, once in objective-c and once in java).  While I =20

> [ have tremendous=20

> [ > respect for Eric Noyeau and I have yet to read his latest =20

> [ treatise on this=20

> [ > subject, I respectfully diagree with him on the subject of =20

> [ distributed=20

> [ > notification, and I truly believe that some form of =20

> [ distributed notification=20

> [ > is the appropriate solution for this problem.  That is, =20

> [ everytime an object=20

> [ > is inserted/updated/deleted in one app instance, all other =20

> [ interested app=20

> [ > instances are immediately notified of this modification in =20

> [ the object graph.=20

> [ > Many web app server vendors offer this as a feature, and I =20

> [ think WOF would=20

> [ > greatly benefit from some sort of real time synchronization =20

> [ implementation.=20

> [ > Further, I think the synchornization mechanism should be =20

> [ opensourced so that=20

> [ > we may all contribute to its feature set.=20

> [ =20

> [ =20

> [ Guess I'm feeling a little dense today (see signature :-), =20

> [ but doesn't David=20

> [ Neumann's ChangeNotification framework do the job?=20

> [ =20

> [ I've just added it recently to a current project, and it =20

> [ seems to work OK,=20

> [ and I've been able to monkey with the source to get it to =20

> [ behave the way I=20

> [ want. (In my case, using a list of EntitiesToSynch rather =20

> [ than a list of=20

> [ EntitiesNotToSynch.)=20

> [ =20

> [ My main feature request for it would be that it support =20

> [ automagic discovery=20

> [ of other application instances (probably by reading Monitor's =20

> [ config files)=20

> [ rather than direct configuration in a plist. Or is that what you're=20=


> [ referring to?=20

> [ =20

> [ PS: The ChangeNotification framework lives at=20

> [ <<http://wodeveloper.com/sourcecode/cn_readme.html>,=20

> [ but I found it through SoftTrak <<http://softrak.stepwise.com/>=20

> [ =20

> [ -- =20

> [ Gary Teter, Big Dog=20

> [ Bulldog Beach Interactive http://www.bulldogbeach.com=20

> [ There's always an excuse, and it usually involves coffee.=20

> [ =20

> [ _______________________________________________=20

> [ WebObjects mailing list=20

> [ WebObjects@omnigroup.com=20

> [ http://www.omnigroup.com/mailman/listinfo/webobjects=20

> [ =20

> _______________________________________________=20

> WebObjects mailing list=20

> WebObjects@omnigroup.com=20

> http://www.omnigroup.com/mailman/listinfo/webobjects=20

> =20

> =20

> =20

> =20


From erik at x101.net  Thu Jul  6 15:46:36 2000
From: erik at x101.net (Erik Doernenburg)
Date: Thu Jul  6 14:46:36 2000
Subject: [REPOST] adding third-party classes (.jar, .zip, etc.) to aproject
In-Reply-To: <B58395A0.3281%kieren_macmillan@mac.com>
Message-ID: <E13AJT4-000P7O-00@oracle.clara.net>

If you work with Solaris or X Server you could also download the Java
Framework maker from www.mulle-kybernetik.com. It "wraps" jar archives into  
real frameworks. You can then simply link against the framework and don't  
have to worry about anything.

cheers,
erik



> From: Kieren Richard MacMillan <kieren_macmillan@mac.com>
> Date: 2000-07-06 00:06:51 +0100
> To: WebObjects Mailing List <webobjects@omnigroup.com>
> Subject: [REPOST] adding third-party classes (.jar, .zip, etc.) to aproject 
> In-Reply-To: <B58395A0.3281%kieren_macmillan@mac.com>
> List-Id: Discussions of Apple's WebObjects <webobjects.omnigroup.com>
> X-BeenThere: webobjects@omnigroup.com
> X-Mailman-Version: 2.0beta3
> Delivered-To: erik@localhost
> User-Agent: Microsoft-Outlook-Express-Macintosh-Edition/5.02.2022
>
> Hey
>
> Sorry for the repost, but this issue is getting critical quickly -- I
> haven't been able to get this to work, and it looks like adding third-party 
> classes will be increasingly necessary in this project...
>
> Thanks for any quick responses anyone can give!
>  Kieren.
>
>
> ----------
> Hello, all!
>
> In building my statistics program, rather than reinvent the wheel, I scoured 
> the 'net and found the JSci.* classes, which include several necessary
> methods (e.g. Chi-Squared Distribution). Now I would like to add this set of 
> classes to my WOProject.
>
> I've searched the archive, as well as read the article on the subject at 
> <http://til.info.apple.com/techinfo.nsf/artnum/n70054>. However, I still 
> have questions, so I hope someone can help...
>
> 0. I think I have both .jar and .zip (source) files -- which is recommended? 
>
> 1. My applet source is in Subproject --> ClientSideJava.subproj, but the 
> classes are supposed to be put into Subproject --> CommonJava.subproj. Do 
> imports across such path boundaries work automagically, or do I have to add 
> the class to my ClientSideJava.subproj as well?
>
> 2. If I've followed the instruction in the TIL article (including setting 
> the NSJavaUserPath in the CustomInfo.plist file and modifying the
> OTHER_CLASSPATH line in the Makefile.preamble file), is there anything to 
> worry about when I move to deploy on another machine?
>
> 3. When I call the new method in my applet code, I get an error. Do I have 
> to use "import JSci.maths.statistics.*" in my code, or should it be there 
> automatically?
>
> 4. Any other words of advice?
>
> Thanks a (new Integer(1,000,000))!!
>  Kieren.
>
>
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects
>
>
>
>

From jeff at reportmill.com  Thu Jul  6 16:10:31 2000
From: jeff at reportmill.com (Jeff Martin)
Date: Thu Jul  6 15:10:31 2000
Subject: ReportMill question
Message-ID: <0FXA000H7QHJC3@mta5.snfc21.pbi.net>

There is a name textfield in the Paint/Fill inspector.

Jeff Martin
ReportMill Software
408.873.1837
jeff@reportmill.com
http://www.reportmill.com


--- jleung@ci.tacoma.wa.us wrote:

> In ReportMill, does anyone know how to change the
> name 
> of a Table once it has been created.  I am trying to
> cut and paste 
> Tables from one template to another or reproduce the
> same Table
> within a template under a different Table name.
> 
> John
> _______________________________________________
> WebObjects mailing list
> WebObjects@omnigroup.com
> http://www.omnigroup.com/mailman/listinfo/webobjects


From smiles at tpud.org  Thu Jul  6 16:29:39 2000
From: smiles at tpud.org (Spencer Miles)
Date: Thu Jul  6 15:29:39 2000
Subject: setMasterObject for master/detail WODisplayGroup
References: <B58A23BD.92AB%dempseyj@apple.com>
Message-ID: <00f001bfe799$7bb89490$4bac2ac0@mt108>

Hey,
Thanks a lot, knowing to put the code in public Main helps out a lot hehe.
However it's still not updating itself to the right account.  I'm not sure
what i'm doing wrong.  I've had it fetch on load and not fetch on load but
it doesn't seem to make a difference.  Is there a way where i could find out
why it's not working, maybe some methods of the displaygroup that could give
me some more information?
Thanks
-Spencer

----- Original Message -----
From: "James Dempsey" <dempseyj@apple.com>
To: "Spencer Miles" <smiles@tpud.org>; "WebObjects Mailing List"
<webobjects@omnigroup.com>
Sent: Thursday, July 06, 2000 11:53 AM
Subject: Re: setMasterObject for master/detail WODisplayGroup


> > public class Main extends WOComponent {
> > WODisplayGroup accountDisplayGroup;
> > WODisplayGroup billDisplayGroup;
> >
> > EOEnterpriseObject selection =
> > (EOEnterpriseObject)accountDisplayGroup.selectedObject();
> > billDisplayGroup.setMasterObject(selection);
> > }
>
> It seems as if your code is just hanging out loose in your Main class.
You
> may want to put it inside of a constructor:
>
> public Main(){
> super();
> EOEnterpriseObject selection =
> (EOEnterpriseObject)accountDisplayGroup.selectedObject();
> billDisplayGroup.setMasterObject(selection);
> }
>
> I've never tried putting code such as that inside a Java initialization
> block (heaven forbid!), but the two display groups will be initialized by
> the time the call to super() returns.
>
> Another Note:
> You want to be sure that the billDisplayGroup (your detail display group)
is
> set to Fetch On Load.  (Either do it in the config panel in WebObjects
> Builder, or programatically).
>
> Doing so makes sure that whenever you change the master object, the
display
> group will automatically fetch the related detail objects.  Otherwise you
> need to manually tell the display group to fetch()  (yuck!).
>
> Hope this helps.
>
> -James
> --
> James Dempsey
> Apple iServices Training
> Apple Computer, Inc.
>
> dempsey@apple.com
> (408) 974-7817
>
> > From: Spencer Miles <smiles@tpud.org>
> > Date: Thu, 06 Jul 2000 11:41:58 -0700
> > To: WebObjects Mailing List <webobjects@omnigroup.com>
> > Subject: setMasterObject for master/detail WODisplayGroup
> >
> > Hello,
> > I have two display groups in my main.wo component,  accountDisplayGroup
> > which points to a table called Account, and billDisplayGroup which is a
> > Master/Detail group (Entity is 'Bill', Master Entity is 'Account',
Detail
> > key is 'bills').  I'm not completely certain what I'm doing, but I'm
> > guessing that I need to set the masterObject for the billDisplayGroup
equal
> > to the selectedObject in the accountDisplayGroup so that
billDisplayGroup
> > knows which account we are using.  The code i'm using is as follows:
> >
> > import com.apple.yellow.foundation.*;
> > import com.apple.yellow.webobjects.*;
> > import com.apple.yellow.eocontrol.*;
> >
> > public class Main extends WOComponent {
> > WODisplayGroup accountDisplayGroup;
> > WODisplayGroup billDisplayGroup;
> >
> > EOEnterpriseObject selection =
> > (EOEnterpriseObject)accountDisplayGroup.selectedObject();
> > billDisplayGroup.setMasterObject(selection);
> > }
> >
> > When I compile i recieve the following error:
> >
> > Main.java:12: Identifier expected.
> > billDisplayGroup.setMasterObject(selection);
> > ^
> > 1 error
> >
> > My guess is that Identifier is something like putting
> > (WODisplayGroup)billDisplayGroup.setMasterObject(selection);
> > But when I do that I recieve a type expected error.  Could someone help
me
> > out here?
> > Thanks a ton!
> > -Spencer Miles
> >
> >
> > _______________________________________________
> > WebObjects mailing list
> > WebObjects@omnigroup.com
> > http://www.omnigroup.com/mailman/listinfo/webobjects
>


From eyal at mcy.com  Thu Jul  6 16:34:29 2000
From: eyal at mcy.com (Eyal Eithcowich)
Date: Thu Jul  6 15:34:29 2000
Subject: A "Nullify" relatonship doesn't nullify
Message-ID: <008401bfe79a$89750270$a60aa8c0@kamgar.nyc.mcy.com>

This is a multi-part message in MIME format.

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	charset="iso-8859-1"
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Hi All,

We're having a problem with a reference to a deleted object not being =
nullified. It's a problem with the eomodel -- we built a Direct 2 Web =
against it and the problem persists. I've included the d2w.=20

There are currently 4 entities in the model: CD, Track, Contract, =
ContractItem.

When we delete a Contract, we expect ContractItem to be deleted as well. =
This works. But there is also a to-one relationship between ContractItem =
and Track. When we delete the Contract, we expect the reference to =
ContractItem in Track to be nullified (the delete rule for the =
relationship is set to Nullify in the EOModel). But it doesn't. The =
Track row still has the reference to the deleted ContractItem.

I know it's a hassle, but if you have a minute take a look at the =
attachment.

Thanks,
Eyal




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	charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Dwindows-1252" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR></HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>Hi All,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>We're having a problem with a reference to a deleted =
object=20
not being nullified. It's a problem with the eomodel -- we built a =
Direct 2 Web=20
against it and the problem persists. I've included the d2w. =
</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>There are currently 4 entities in the =
model:&nbsp;CD, Track,=20
Contract,&nbsp;ContractItem.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>When we delete a Contract, we expect ContractItem to =
be=20
deleted as well. This works. But there is also a to-one relationship =
between=20
ContractItem and Track. When we delete the Contract, we expect the =
reference to=20
ContractItem in Track to be nullified (the delete rule for the =
relationship is=20
set to Nullify in the EOModel). But it doesn't. The Track row still has =
the=20
reference to the deleted ContractItem.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>I know it's a hassle, but if you have a minute take =
a look at=20
the attachment.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>Thanks,</FONT></DIV>
<DIV><FONT size=3D2>Eyal</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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