[jboss-user] [JBoss Tools] - Message Events in statefully flows

Kris Verlaenen do-not-reply at jboss.com
Tue Aug 31 10:01:32 EDT 2010

Kris Verlaenen [http://community.jboss.org/people/KrisVerlaenen] replied to the discussion

"Message Events in statefully flows"

To view the discussion, visit: http://community.jboss.org/message/559792#559792


You should signal your flow about the occurence of an event using processInstance.signalEvent(name, value);
So the problem is, how do I find the right process instance to signal?

Drools Flow currently does not allow for automatic correlation of messages.  You can however use the processInstanceId for correlation purposes:

a) store the process instance id as part of your domain model, when the event occurs due to a change of one of your facts, you can simply retrieve the process instance id from the fact

b) you can maintain a separate table that maps process instance id to some other domain data (like for example a fact id), so that you can lookup the process instance id like this.

We'll be looking at how to provide more automatic correlation mechanisms as part of the BPMN2 implementation.



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