Hi Pardeep,

 

I have gotten this functionality to work.

 

I am using SQL Server, but that is just a difference in the persistence.xml or datasource. 

 

You are seeing SessionInfo data, so your persistence is there, did you add this?

     <class>org.drools.persistence.processinstance.variabletypes.JPAPersistedVariable</class>

 

Here is the main points of my code.

    EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.drools.persistence.jpa");
    env = KnowledgeBaseFactory.newEnvironment();
    env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);

    VariablePersistenceStrategyFactory.getVariablePersistenceStrategy()
            .setPersister("javax.persistence.Entity",
                    "org.drools.persistence.processinstance.persisters.JPAVariablePersister");

    session = JPAKnowledgeService.newStatefulKnowledgeSession(knowledgeBase, null, env);

    KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(session, "log/claimsdemo");

    trackingProcessEventListener = new TrackingProcessEventListener();
    session.addEventListener(trackingProcessEventListener);

    Map<String, Object> parameterMap =
            new HashMap<String, Object>();
    parameterMap.put("claim", claim);
    processInstance = session.startProcess(CLAIM_FLOW, parameterMap);

 

 

Bill