DevForce Community Forum : BatchInterceptor - Null Instance... http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : BatchInterceptor - Null Instance... Thu, 23 May 2013 22:00:54 -700 Thu, 06 Jan 2011 14:42:21 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=2415 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ BatchInterceptor - Null Instance... : It is good to know that it is... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9580#9580 Author: as123
Subject: 2415
Posted: 06-Jan-2011 at 2:42pm

       It is good to know that it is available through the VerifierContext at the end of the batch.
 
Thanks
]]> Thu, 06 Jan 2011 14:42:21 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9580#9580 BatchInterceptor - Null Instance... : as123;Yes, that was done on purpose... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9579#9579 Author: DenisK
Subject: 2415
Posted: 06-Jan-2011 at 2:38pm

as123;

Yes, that was done on purpose because the triggerContext and instance are already available inside the verifierContext. Here's how you can get them.

if(verifierContext.EndOfBatch) {
var verifierResult = verifierContext.VerifierResults.Last();  //I'm just using last as an example.
triggerContext = verifierResult.TriggerContext;
instance = verifierResult.TargetInstance;
}
]]> Thu, 06 Jan 2011 14:38:01 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9579#9579 BatchInterceptor - Null Instance... : I see. Let me find out whether... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9555#9555 Author: DenisK
Subject: 2415
Posted: 04-Jan-2011 at 12:40pm

I see. Let me find out whether this was done on purpose or not. I will file a defect report and get back to you.]]> Tue, 04 Jan 2011 12:40:50 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9555#9555 BatchInterceptor - Null Instance... : The purpose is to populate some... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9552#9552 Author: as123
Subject: 2415
Posted: 04-Jan-2011 at 9:58am

             The purpose is to populate some kind of Error Summary at the end of the Batch with some Context Information from the instance being validated. Since the context is available until the last verifier returns, I expected it to be available as the context for the last batch. Is there a reason it is cleaned up at the end of the batch? 

Thanks
]]> Tue, 04 Jan 2011 09:58:20 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9552#9552 BatchInterceptor - Null Instance... : as123;This may or may not be set... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9545#9545 Author: DenisK
Subject: 2415
Posted: 04-Jan-2011 at 1:27am

as123;

This may or may not be set to null on purpose since it's the end of batch. Could you tell me the reason why you're trying to access the instance at the end of batch and not before it?
]]> Tue, 04 Jan 2011 01:27:02 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9545#9545 BatchInterceptor - Null Instance... : I am using DevForce version 6.0.7.... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9543#9543 Author: as123
Subject: 2415
Posted: 03-Jan-2011 at 10:50pm

         I am using DevForce version 6.0.7. 

        The current instance is null when verifierContext.EndOfBatch is true.  In fact, I have logic to execute only when EndOfBatch is true (which I did not notice earlier), and the current instance is not available at that point.

        I duplicated this issue in the  sample application provided by DevForce earlier. Please let me know if you need additional information.

Thanks

Sample Code:

--------------
....
_mgr.VerifierEngine.BatchInterceptor = TestBatchInterceptor;
...
-----------
...
        public static VerifierErrorContinuationMode TestBatchInterceptor(object currInstance, TriggerContext triggerContext, VerifierContext verifierContext)
        {
            if (verifierContext.EndOfBatch)
            {
                verifierContext.VerifierResults.Add(new VerifierResult(VerifierResultCode.Error,
                                                                       String.Format(
                                                                           "Accumulated a total of {0} error(s)",
                                                                           verifierContext.VerifierResults.Errors.Count)));
                return VerifierErrorContinuationMode.Stop;
            }
            else
            {
                return VerifierErrorContinuationMode.Continue;
            }
        }

]]> Mon, 03 Jan 2011 22:50:51 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9543#9543 BatchInterceptor - Null Instance... : I couldn't repro this. What... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9539#9539 Author: DenisK
Subject: 2415
Posted: 03-Jan-2011 at 6:28pm

I couldn't repro this. What version are you using?]]> Mon, 03 Jan 2011 18:28:21 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9539#9539 BatchInterceptor - Null Instance... : In the problem scenario, the verifiers... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9538#9538 Author: as123
Subject: 2415
Posted: 03-Jan-2011 at 6:20pm

             In the problem scenario, the verifiers were triggered by Setters (AfterSet). ]]> Mon, 03 Jan 2011 18:20:57 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9538#9538 BatchInterceptor - Null Instance... : as123;Are you calling the verifier... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9537#9537 Author: DenisK
Subject: 2415
Posted: 03-Jan-2011 at 6:18pm

as123;

Are you calling the verifier with VerifierEngine.Execute method or are you triggering the verifier with the property set method?
]]> Mon, 03 Jan 2011 18:18:52 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9537#9537 BatchInterceptor - Null Instance... : The instance being passed to VerifierBatchInterceptor... http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9535#9535 Author: as123
Subject: 2415
Posted: 03-Jan-2011 at 6:04pm

        The instance being passed to VerifierBatchInterceptor delegate is always null (found while debugging) even though the verifier is having the proper Instance passed.  Is there anything I need to do to populate it? 

        I am setting the BatchInterceptor delegate method to the corresponding property in VeriferEngine, and the BatchInteceptor method is called correctly,  but only the VerifierContext is set. 

        Any idea what might be going on here?

Thanks

]]> Mon, 03 Jan 2011 18:04:23 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=2415&PID=9535#9535