Jason J [
https://community.jboss.org/people/jasonjho] created the discussion
"Persisted process not resuming from wait state"
To view the discussion, visit:
https://community.jboss.org/message/772878#772878
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Environment: jBPM 5.2.0 + Drools 5.3.1 + H2
I have a jBPM flow that is configured for persistence and after a server restart, is
reloaded the following way:
{code}
ksession = JPAKnowledgeService.+loadStatefulKnowledgeSession+(session_*id*, kbase, *null*,
env);
ksession.addEventListener(listener) // this doesn't seem to work
ksession.fireAllRules()
{code}
At this point, shouldn't the workflow process be restarted? I can see that there are
processinstanceinfo, sessioninfo and eventtype tables in my database, so I know some
information was persisted from my original execution. But why is the event listener not
being called after the reload to let me know what node the workflow is currently on, and
subsequently, what node the process is traveling to?
In my workflow, let's say I am halfway through and I come across a wait states that
looks like the following:
{code}
<intermediateCatchEvent id="_6" name="Wait for Document Approval"
>
<conditionalEventDefinition>
MyDocument(status == "Approved")
</...>
</...>
{code}
At this point, a rule is evaluated and changes the state on MyDocument to
"Approved", causing this wait state to unblock and move to the next node in the
workflow.
I thought at this point, jBPM would persist the process b/c it is considered a "safe
point". But when my server is restarted and I try to advance the workflow from this
wait point (let's say I change the document status to "Approved") - it never
moves forward. Part of me thinks that the worklow is not really running -- only the
rules alone that are being fired in the session.
So my question is - how can I verify that this workflow is correctly restarted and
resumed? I thought the EventListener on the session would be notified of node entry/exit
as it does normally.
Any ideas?
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