[jboss-user] [jBPM] - jBPM persistent session ids

[Jason Jho]

Jason Jho [https://community.jboss.org/people/jasonjho] created the discussion

"jBPM persistent session ids"

To view the discussion, visit: https://community.jboss.org/message/730695#730695

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I am using jBPM 5.2.0 and I have a question about ksession ids.  My understanding is that this session ID is used to reload a persisted session, but there is no clear indication how this is supposed to work when a server is restarted.  For example, if I have a session ID [1] for a workflow process that is persisted and the server goes down, I can reload the session back to it's previous state using this same ID.  However, how am I guaranteed that any new session ID created by the same knowledge base will be uniquely different from the persisted ID?

Ex:

int id = ksession.getId() ...
startProcess(...)

// server shuts down - restarts
int savedId = geSavedId();
session = JPAKnowledgeService.+loadStatefulKnowledgeSession+(savedId, kbase, *null*, env);

newSession = kbase.newStatelessKnowledgeSession(...)
newSession.getId() = ???


In the above scenario, could it be possible for newSession.getId() to have the same integer value as the previously saved ID?
If so, how would one be able to distinguish the 2 different sessions?


Thanks for any help.
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