Re: WO 5.3 and Tomcat property files?
Hi David,
Thanks that sounds like a good path to follow. I'll give it a try.
- Dave
Original message
Date: Fri, 19 May 2006 11:41:14 -0400
From: David Aspinall [EMAIL PROTECTED]
Subject: Re: WO 5.3 and Tomcat property files?
To: Dave Elsner [EMAIL PROTECTED]
Cc: "webobjects-dev@lists.apple.com Apple" webobjects-dev@lists.apple.com
I encountered problems with WebSphere using properties files. The
first problem is that either the Framework properties files were NOT
read, or they were not read in time (for me to initialize from
them). The second is that when the properties are loaded, there is
only ONE System.properties object. See:
http://www.google.com/search?q=webobjects+servlet+properties
http://developer.apple.com/documentation/WebObjects/JSP_and_Servlets/
SpecialIssues/chapter_4_section_2.html
Additionally you can set properties in the container and WO will load
them from JNDI. Which is cool in a way and familiar for clients with
their own administration processes and policies.
Our solution is to have one property defined in the container to
identify an additional properties file. That file we manually read
(from filesystem/war/ear) using a standard java Properties object and
then for each property we set the key and value into NSProperties.
If we do this early enough (Application initialization) then we can
control/override all the standard WebObjects properties (including
custom jdbc/jndi connection info).
Hope this helps,
David
On 19-May-06, at 2:39 AM, Dave Elsner wrote:
Hi,
What the best approach to use property files from development in
and for deployment within tomcat? Because it seems they are not
being read in at run time
System.getProperty("foo") always returns null under tomcat, but
works perfectly in development in Xcode.
I tried printing out System.getProperties() and none of my
application properties have been loaded only the built in Java ones
are there.
How does every one else handle this?
1) Manually add properties as env-entry in the web.xml file?
2) Avoid properties altogether ?
3) Something else?
I had a quick look at LEConfigServletEnvEntryMergeTool from
lejstuff from Andrew Lindesay and it looks promising. As it appears
to convert property files to env-entry in the web.xml file, but
running it out of the box I got IO.exceptions.
- Dave
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Re: Explaining the power of Direct to Web
It's definitely CSS for objects. But in a sense it is also WO square: D2W = WO^2. That's because in concept D2W applies WebObject's page generation mechanism once more, at the component level. Instead of having to program an editor component for every entity in your model you use a generic editor that depending on the entity will show matching attribute editing fields.This reduces the number of pages you need to handcraft by a factor! The square factor :-) Rudi Angela On May 19, 2006, at 19:51, Pierce T. Wetter III wrote: On May 19, 2006, at 9:53 AM, David Holt wrote: After reading all the Direct to Web stuff I could get my hands on, I was trying to describe to my boss why we need to be looking at it and moving towards it. The metaphor I came up with was that D2W is like CSS for objects. I think that sort of describes its power, but I would be interested in how others make the argument for (ER) D2W to non-programmers (or programmers for that matter!). CSS for objects is a pretty good one-line answer. A longer one would be that D2W lets you describe the meta information about an object: How to format its data, how to label it, what data should be editable, etc. It can then build user interface from that description. Pierce ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/blue.moon% 40tiscali.nl This email sent to [EMAIL PROTECTED] ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to archive@mail-archive.com
Re: method failed to update row
Am 19.05.2006 22:30 Uhr schrieb Robert Walker unter
[EMAIL PROTECTED]:
Thanks Robert,
i took a second look at the docs and found that TolerantSaver should do it.
So to answer my question: TolerantSaver is the correct Solution.
I made the following changes to the save method of TolerantSaver :
// improved exception handling for validation
// changed NSException to EOGeneralAdaptorException
// added catch of remaining Exception for debugging purpose
public static String save(EOEditingContext ec, boolean writeAnyWay, boolean
merge) {
System.out.println(TolerantSaver: save...);
try{
//System.out.println(about to save changes...);
ec.saveChanges();
}catch ( NSValidation.ValidationException ve ){
System.out.println(TolerantSaver: EO ValidationException);
throw ve;
}catch ( EOGeneralAdaptorException e ){
//}catch(NSException e){ // not thrown, EOGeneralAdaptorException
instead!
EOEnterpriseObject failedEO;
NSDictionary userInfo = (NSDictionary)e.userInfo();
// NSValidation.ValidationException catched above
//String eName = (String)e.name();
////System.out.println(TolerantSaver: Exception occurred name:
+ eName);
////System.out.println(Exception occurred e:
-);
////System.out.println(Exception occurred e: +e);
////System.out.println(Exception occurred userInfo: +
userInfo);
////System.out.println(Exception occurred e:
^);
//if(eName.equals(EOValidationException)){
//System.out.println(TolerantSaver: This is
EOValidationException);
////throw e;
//}
...
Now it works like a charme.
Thanks dneumann!
Wolfram
Take a look at Update Strategies Recovery in the following document:
http://developer.apple.com/documentation/WebObjects/
Enterprise_Objects/index.html
This gives a couple of solutions to these Optimistic Locking
exceptions, including some sample code (note that there may be some
errors in the sample code, but I think they are pretty easy to find
and fix).
On May 19, 2006, at 4:02 PM, Wolfram Stebel wrote:
Hi List,
another problem i encounter today:
i have two WO applications running, one uses objects from a
sharedEditingContext for display only.
In one method of this appication i added the following:
...
EOEditingContext localEC = new EOEditingContext ();
localEC.setSharedEditingContext ( null );
// wcSponsor comes in a shared EC so get a modifyable copy in local EC
WCSponsor copiedSponsor = ( WCSponsor ) localEC.faultForGlobalID (
wcSponsor.editingContext ().globalIDForObject ( wcSponsor ),
localEC );
Integer hc = ( Integer ) copiedSponsor.hit_count();
copiedSponsor.setHit_count ( new Integer ( hc != null ? hc.intValue
() + 1 :
1 ) );
localEC.saveChanges ();
...
I get the following exception, when i try to save the same object
from the
second application after the above code updated the database:
com.webobjects.eoaccess.EOGeneralAdaptorException:
updateValuesInRowDescribedByQualifier --
com.webobjects.jdbcadaptor.JDBCChannel method failed to update row in
database
As far as i can see, this is a standard concurrency problem.
Now i tried TolerantSaver from dneumann to get the data merged and
saved.
But now i wonder, that this exception is not catched in there.
Is TolerantSaver the wrong solution?
What could i do instead?
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Re: AJAX WebObjects Integration
Thanks Pierce --http://en.wikibooks.org/wiki/Programming:WebObjects/Alternative_Technologies/Ruby_on_RailsI'll link it off the Ajax pages when those go up too.On May 19, 2006, at 1:48 PM, Pierce T. Wetter III wrote: Easy enough, I've been doing a lot of this lately. Warning, its going to be long, because I've been thinking about writing a post like this for a long time. I hereby give permission in advance if anyone wants to put this post on a website somewhere, just please attribute it and email me. ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to archive@mail-archive.com
Total A Column Using Code
Hi all, I know I've done this before but I just can't seem to remember how. What's the equivalent code for this WO binding: [EMAIL PROTECTED] i.e. I need to total the jaDuration column of an NSArray using Java code. Any help would be very much appreciated! Kind regards, David. ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to archive@mail-archive.com
