Actually, as far as I remember, getProcessInstances() from a restored session will ALWAYS return an empty list.
Hi Stephan.
Thank you for the replay. Next time I will read the javadoc before asking here.
Regards,
Anderson
2011/3/30 <Stephan.Koops@we4it.com>
>
> Hi,
>
> see javadoc of org.drools.runtime.process.ProcessRuntime.getProcessInstances():
>
> * Returns a collection of currently active process instances. Note that only process
> * instances that are currently loaded and active inside the engine will be returned.
> * When using persistence, it is likely not all running process instances will be loaded
> * as their state will be stored persistently. It is recommended not to use this
> * method to collect information about the state of your process instances but to use
> * a history log for that purpose.
>
> If no instance is loaded yet, that this behaviour is exactly as described.
>
> Mit freundlichen Grüssen/Best regards
>
> i. A.
> Stephan Koops
> Software Engineer
> We4IT GmbH
>
>
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>
> From: Anderson Neves <anderson.ufal@gmail.com>
> To: Rules Users List <rules-users@lists.jboss.org>
> Date: 30.03.2011 05:34
> Subject: [rules-users] FAIL - getProcessInstances() from persisted StatefulKnowledgeSession
> ________________________________
>
>
> Hi everybody.
>
> I configured the session persistence and persisted an instantiated process. When I get the session from the database and use the method getProcessInstances(), it returns an empty collection. But, when I call getProcessInstance(1), and 1 is the InstanceId of the ProcessInstanceInfo (table that contains the process instance), I get the correct process instance. Is this a bug? See the code below.
>
> statefulSession = JPAKnowledgeService.loadStatefulKnowledgeSession(sessionId, knowledgeBase, null, environment);
>
> Collation<ProcessInstance> processInstances = statefulSession.getProcessInstances(); // FAIL - return empty collection
>
> ProcessInstance processInstance = statefulSession.getProcessInstance(1); // OK - return the process instance
>
>
> Regards,
> Anderson_______________________________________________
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