February 2009 - jbpm-dev - Jboss List Archives

[Design of JBoss jBPM] - Re: EJB3 enterprise module?

by heiko.braun＠jboss.com

anonymous wrote : | building ejb 3 versions of the command service and timer service do not make sense to me. | it wasn't dicussed yet. that's what we are doing atm. But what are your concerns? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208925#4208925 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208925

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[Design of JBoss jBPM] - Re: EJB3 enterprise module?

by camunda

Sorry, the latter was (building ejb3 command and job service and timer). Why doesn't this make sense to you? Because it doesn't add new functionality? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208924#4208924 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208924

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[Design of JBoss jBPM] - Re: EJB3 enterprise module?

by camunda

So it would maybe help if I commit it for jbpm 3? ;-) Maybe I can also volunteer to port it to jbpm 4 afterwards, but I am not yet sure if I have the time... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208923#4208923 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208923

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[Design of JBoss jBPM] - Re: EJB3 enterprise module?

by tom.baeyens＠jboss.com

where was that discussed ? i want to verify the following points: adding support for storing ejb 3 entities as process variables makes sense to me. building ejb 3 versions of the command service and timer service do not make sense to me. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208920#4208920 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208920

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[Design of JBoss jBPM] - Re: jbpm 4 module dependencies

by tom.baeyens＠jboss.com

right. the tests depend indeed on jpdl. though the enterprise sources should only depend on pvm. so i'll mark the dependency on jpdl with scope 'test'. ok ? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208919#4208919 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208919

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[Design of JBoss jBPM] - Re: EJB3 enterprise module?

by heiko.braun＠jboss.com

I was looking into that for jbpm4 as well. But didn't make any progress so far. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208917#4208917 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208917

17 years, 2 months

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[Design of JBoss jBPM] - Re: jbpm 4 module dependencies

by heiko.braun＠jboss.com

IMO enterprise depends on jPDL. Not on PVM. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208905#4208905 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208905

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[Design of JBoss jBPM] - Re: Concurrency in jBPM4

by roschmel

I do not use pessimistic locking because it is necassary to synchronize against the parent parent parent.... process instance because a signal anywhere in the process can cause data changes up in the hierachy. So I would have to make a loadInstanceForUpdate on the parent instance. Using pessimitic locking on the row level causes deadlock situations in the database where orcale throws exceptions then. I decided to do it with a jboss cache so that i can relase the jbpmcontext during the wait for the lock in order not to hold the the database resources during waiting. But the loadInstnaceForUpdate would definitly be an option I think. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208880#4208880 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208880

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[Design of JBoss jBPM] - EJB3 enterprise module?

by camunda

Hi guys, what is the current status of an eEJB3 enterprise module (form jbpm 3)? It was discussed quite often already, but nothing is done on this yet, right? Or did I miss any code? For a current project I will develop it anyway, does it make sense to commit it for others? I know a couple of projects which developed their own EJB3 bean and I get the question in trainings quite often. So I think it would make sense for a lot of people, more than the "old" EJB 2.1 stuff... What do you guys think? Could it be put in 3.3. to avoid productization/support effort? Cheers Bernd View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208878#4208878 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208878

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[Design of JBoss jBPM] - Re: Concurrency in jBPM4

by camunda

@roschmel: Okay, now its a bit clearer. Why don't you use hibernate pessimistic locking in this case? And: With async=true, couldn't you get completly rid of the problematic situations if you use it often enough? Alex wrote : An ExecuteJobsCommand is constructed with the exclusive job IDs and sent to the command queue. The command executor then executes the jobs serially. Couldn't this lead to the behavior of a repeating timer creating jobs which cannot be processed as fast as created (assume the system is very utilized)? This is why we normally decided against executing timer stuff over JMS. Or what do you think? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208876#4208876 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4208876

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jbpm-dev February 2009