August 2010 - jboss-user - Jboss List Archives

Re: [jboss-user] [jBPM] - BPMN 2.0 modeling with Signavio/jBPM

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "BPMN 2.0 modeling with Signavio/jBPM" To view the discussion, visit: http://community.jboss.org/message/557193#557193 -------------------------------------------------------------- Hi Patricia, Glad to see that you have interesting about this feature. The RulesActivity in jPDL used Drools as the business rule engine, we could put some facts in it, when it finished calculation, will put the result to a process instance variable. I think it could be not hard to move this feature from jPDL to BPMN2. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557193#557193] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

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[jBPM] - jBpm 4.3 service task has no optional args?

by Tim Stephenson

Tim Stephenson [http://community.jboss.org/people/tstephen] created the discussion "jBpm 4.3 service task has no optional args?" To view the discussion, visit: http://community.jboss.org/message/557183#557183 -------------------------------------------------------------- Hi, I've been looking at taskService in a BPMN2 process and I don't seem to be able to define an optional argument. If I define an arg such as: <jbpm:arg> <jbpm:object expr="#{cc}" /> </jbpm:arg> but do not have such a variable in the process instance by the time the task is invoked then it fails with the following error: [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.CompleteTaskCmd@f4189a org.jbpm.pvm.internal.wire.WireException: couldn't invoke method doTest: couldn't create argument 3: script evaluation error: javax.el.PropertyNotFoundException: Cannot find property cc at org.jbpm.bpmn.flownodes.JavaServiceTaskActivity.perform(JavaServiceTaskActivity.java:94) So it seems all args must exist or am I doing something wrong? I would prefer to handle optional params in my service class. What do you think? thanks in advance, Tim -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557183#557183] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [jBPM] - JBPM Hangs

by Michael Wohlfart

Michael Wohlfart [http://community.jboss.org/people/mwohlf] replied to the discussion "JBPM Hangs" To view the discussion, visit: http://community.jboss.org/message/557179#557179 -------------------------------------------------------------- So is there anything interesting in the debug logs? Can you step into other jBPM4 API methods with the NetBeans debugger or is it just this one? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557179#557179] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [jBPM] - JBPM Hangs

by Donald Walters

Donald Walters [http://community.jboss.org/people/dondragon2] replied to the discussion "JBPM Hangs" To view the discussion, visit: http://community.jboss.org/message/557178#557178 -------------------------------------------------------------- This is exactly what I am saying. Debugging is on for all loggers and the root. In Netbeans I cannot step into that method. It just stops there. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557178#557178] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [jBPM] - JBPM Hangs

by Michael Wohlfart

Michael Wohlfart [http://community.jboss.org/people/mwohlf] replied to the discussion "JBPM Hangs" To view the discussion, visit: http://community.jboss.org/message/557172#557172 -------------------------------------------------------------- Enable debug logging might help to figure out what is happening? And are you saying in the Netbeans Debugger you can't do a "step into method" when the debugger reaches the executionService.startProcessInstanceByKey() method? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557172#557172] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [EJB 3.0 Development] - Deferring instance creation/injection to CDI

by Marius Bogoevici

Marius Bogoevici [http://community.jboss.org/people/marius.bogoevici] replied to the discussion "Deferring instance creation/injection to CDI" To view the discussion, visit: http://community.jboss.org/message/557169#557169 -------------------------------------------------------------- Also, I am wondering if the instantiator interface can be extended to pass on some information about the EJB that is being instantiated - e.g. the bean name. There can be multiple EJBs with the same bean class, and we need to identify the actual CDI bean. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557169#557169] Start a new discussion in EJB 3.0 Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [jBPM] - BPMN 2.0 modeling with Signavio/jBPM

by Patricia B

Patricia B [http://community.jboss.org/people/patriciab] replied to the discussion "BPMN 2.0 modeling with Signavio/jBPM" To view the discussion, visit: http://community.jboss.org/message/557166#557166 -------------------------------------------------------------- Hi, Thank you to both of you for your replies. For Koen: Do you have any timeline for jBPM 5? I read some posts on Drools forum, that actually Drools Flow, and jBPM5 will become one workflow engine ( http://drools-java-rules-engine.46999.n3.nabble.com/jBPM-and-Drools-Flow-... http://drools-java-rules-engine.46999.n3.nabble.com/jBPM-and-Drools-Flow-...). Can you comment on that? For HuiSheng Xu: One note here: I noticed that on my post, I talked about *business task*, but what I really meant, was *business rule task*. Not sure if that was obvious, and I thought to make a note of that to clarify it. I would be more than happy to help with some ideas about business rule task and how I see that working, if there is indeed interest in having that implemented, and can be released before jBPM5 is out :). There is a business rule task implemented in jPDL (called rule task), so probably there is support already for that in the underlying execution platform (I do not know much details about jPDL or PVM internals). I'll put together some of my ideas about this, and share it, but I'll create a new entry on the forum for BPMN 2.0 business rule task. Thanks, --Patricia -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557166#557166] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [JBoss Remoting] - Remoting - "replacing control socket" Question

by Ron Sigal

Ron Sigal [http://community.jboss.org/people/ron.sigal%40jboss.com] replied to the discussion "Remoting - "replacing control socket" Question" To view the discussion, visit: http://community.jboss.org/message/557158#557158 -------------------------------------------------------------- H Vidhya, > vidhya Baskaran wrote: > > shouldn't these remoting threads be cleaned up on the server since the client is not using these threads anymore and have started using the new ones ? In my case the currentPoolSize never decreased. Not necessarily. currentPoolSize represents the number of threads currently either (1) actively executing an invocation, or (2) sitting in a read() waiting for the next invocation. The latter threads will remain in that state until the read() times out, which, for JBossMessaging, is never, since remoting-bisocket-service.xml sets the "timeout" value to 0. (Note, by the way, that the read() will be interrupted and the thread made available for reuse if the maximum number of threads is reached.) Changing the control socket doesn't have any effect on this behavior. If you're concerned about the number of threads, there is an "idleTimeout" parameter which, if set to a value greater than 0, will shut down threads that haven't been used for "idleTimeout" seconds. Or, you could set "timeout" to a finite value. > vidhya Baskaran wrote: > > Also does turning the ping off have any effect on the messaging (i will post it in the messaging forums...just wanted to see if you have any thoughts on it.) > Well, it used to be that JBossMessaging always turned off the ping, but I believe (and I think they now believe) that doing so can lead to problems. The trick is to find the right ping interval to avoid too many spurious timeouts due to busy servers or congested networks. -Ron -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557158#557158] Start a new discussion in JBoss Remoting at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [jBPM] - JBPM 4.4 taskService.completeTask leaves no task outcome specified in history.

by Caine Lai

Caine Lai [http://community.jboss.org/people/unsavory] replied to the discussion "JBPM 4.4 taskService.completeTask leaves no task outcome specified in history." To view the discussion, visit: http://community.jboss.org/message/557146#557146 -------------------------------------------------------------- Hi HuiSheng, While attempting to create a test case for you, it seems it works fine in the in memory hsql db. The history is being recorded as expected. This leads me to believe there could be an issue with the database migration scripts as I have migrated from 4.1 to 4.4. Doing a schema compare between a brand new 4.4 database and my upgraded database, I see a LOT of differences in the foreign keys. I am attempting to synchronize the database schemas and will report back. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557146#557146] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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Re: [jboss-user] [JBoss Remoting] - Remoting - "replacing control socket" Question

by vidhya Baskaran

vidhya Baskaran [http://community.jboss.org/people/vbs_jboss_accnt] replied to the discussion "Remoting - "replacing control socket" Question" To view the discussion, visit: http://community.jboss.org/message/557144#557144 -------------------------------------------------------------- Thanks Ron for the reply. I did fix the issue.We had a job that ran every 30 minutes to sync the Messaging server time. I turned it off and the 'replacing control socket' disappeared and the thread count is stable. But back to the case where the control sockets gets replaced becuase the client didn't receive a ping back from the server (assuming when the time sync happened , the time was off and hence something happened to the server ping threads....), shouldn't these remoting threads be cleaned up on the server since the client is not using these threads anymore and have started using the new ones ? In my case the currentPoolSize never decreased. Also does turning the ping off have any effect on the messaging (i will post it in the messaging forums...just wanted to see if you have any thoughts on it.) Thanks a lot. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557144#557144] Start a new discussion in JBoss Remoting at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

15 years, 8 months

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jboss-user August 2010