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Problem persisting tasks
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created by <a href="http://community.jboss.org/people/imran.h">Asad Rauf</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/625351#625351">View the full discussion</a>
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<div class="jive-rendered-content"><p>I am trying to get persistence setup and I am get the following exception:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()</p><p>        at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)</p><p>        at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:811)</p><p>        at org.jbpm.task.service.TaskServiceSession.persistInTransaction(TaskServiceSession.java:786)</p><p>        at org.jbpm.task.service.TaskServiceSession.addUser(TaskServiceSession.java:69)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I saw the a relevant thread on this forum: <a class="" href="http://community.jboss.org/thread/162939?start=15&tstart=0">http://community.jboss.org/thread/162939?start=15&tstart=0</a></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>According to the advice on this list, I should setup two different persistence units, a separate one for tasks. That works  but I end up persisting just the process info and not the task info. This means I am unable to get tasks for a user who logs in at a later time. I am sure this is not expected behavior. My current code is:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        EntityManagerFactory emf = Persistence.createEntityManagerFactory( "org.jbpm.persistence.jpa", HibernateConfig.getPersistenceProps() );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        EntityManagerFactory emfTask = Persistence.createEntityManagerFactory( "org.jbpm.myTask", HibernateConfig.getPersistenceProps() );</p><p>        </p><p>        Environment env = KnowledgeBaseFactory.newEnvironment();</p><p>        </p><p>        env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf );</p><p>        env.set( EnvironmentName.TRANSACTION_MANAGER, TransactionManagerServices.getTransactionManager() );</p><p>        env.set( EnvironmentName.TRANSACTION, TransactionManagerServices.getTransactionManager() );</p><p>        env.set( EnvironmentName.GLOBALS, new MapGlobalResolver() );</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        Properties properties = new Properties();</p><p>        properties.put("drools.processInstanceManagerFactory", "org.jbpm.persistence.processinstance.JPAProcessInstanceManagerFactory");</p><p>        properties.put("drools.processSignalManagerFactory", "org.jbpm.persistence.processinstance.JPASignalManagerFactory");</p><p>        KnowledgeSessionConfiguration config = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);</p><p>       </p><p>/* Start Mina server for HT*/</p><p>        MinaTaskServer server = new MinaTaskServer(taskService);</p><p>        Thread thread = new Thread(server);</p><p>        thread.start();</p><p>        </p><p>        TaskServiceSession taskSession = taskService.createSession();</p><p>        CurrentHibernate.setTaskServiceSession(taskSession);</p><p>        List<User> users = getSimbaService().getUserService().getAllUsers(); </p><p>        for(User user: users) {</p><p>          taskSession.addUser(new org.jbpm.task.User(user.getUsername()));</p><p>        }</p><p>        //Build Knowlede Base</p><p>        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();</p><p>        kbuilder.add(ResourceFactory.newClassPathResource("META-INF/PermissionRequest.bpmn"), ResourceType.BPMN2);</p><p>        KnowledgeBase kbase = kbuilder.newKnowledgeBase();</p><p>        </p><p>        StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, config, env);</p><p>     </p><p>ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new CommandBasedWSHumanTaskHandler(ksession));</p><p>        ksession.getWorkItemManager().registerWorkItemHandler("sendPermissionRequest", new PermissionRequestTaskHandler());</p><p>        </p><p>        Map<String, Object> params = new HashMap<String, Object>();</p><p>        params.put("description", taskDetails.toString());</p><p>        params.put("requesterComments", requesterComments);</p><p>        params.put("approver", toUser);</p><p>        params.put("permissionRequestItems", taskDetails.toString());</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>     ProcessInstance processInstance = ksession.startProcess("permissionRequest", params);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for your help.</p></div>
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