[jboss-user] [jBPM] - When does Session.startProcess() return?

Brian Wallis do-not-reply at jboss.com
Thu Feb 3 21:10:42 EST 2011

Brian Wallis [http://community.jboss.org/people/bwallis42] created the discussion

"When does Session.startProcess() return?"

To view the discussion, visit: http://community.jboss.org/message/585359#585359

I'm launching a new workflow calling StatefulKnowledgeSession.startProcess() and am wondering about the threading model. When will this return

1) if the first node in the workflow is a rules node and will have to wait for a fact to be inserted into the session

2) if the first node in the workflow is WorkItem node of my own coding, ie: is my code executed by the same thread that called startProcess()

3) if the first node in the workflow is a HumanTask node.

The reason I ask is that I don't know if I need to create a new thread before calling startProcess() or not. And if I do need a thread, how would this be recreated when I want to resume all the workflow sessions after a shutdown? If you can point me at some documentation about the threading and transaction model for jBPM5 I would be very grateful.


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