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Re: JBPM's persistence reusing existing connection
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created by <a href="http://community.jboss.org/people/ysh_fdez">Andres Fernandez</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/642648#642648">View the full discussion</a>
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<div class="jive-rendered-content"><p>Thank very much Juan and Mauricio. Our applications create the connection as mode application managed entity manager. I'll trying to get a valid EntityManager from an instance of hibernate.Session. I will have the option to add a JTA transaction manager as plan B.</p><p>  </p><p>We tested code that we have seen on the web, but as nothing has worked so I began to doubt.</p><p>  </p><p><strong>First </strong>way</p><p><a class="jive-link-external-small" href="http://community.jboss.org/thread/163990" target="_blank">http://community.jboss.org/thread/163990</a></p><p>Code</p><p>{{{</p><p>     org.hibernate.Session session = ...</p><p>     Configuration cfg = new Configuration();</p><p>     cfg.configure("/hibernate.cfg.xml");</p><p>     EntityManagerFactory emf =</p><p>           new EntityManagerFactoryImpl(session.getSessionFactory(), PersistenceUnitTransactionType.RESOURCE_LOCAL, true, null, cfg);</p><p>     Environment env = KnowledgeBaseFactory.newEnvironment();</p><p>     env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);</p><p>     StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);</p><p>}}}</p><p>Error</p><p>{{{</p><p>     21/12/2011 08:38:10 [ERROR] (org.drools.persistence.SingleSessionCommandService)  - Could not commit session</p><p>     java.lang.NullPointerException</p><p>          at org.drools.persistence.jta.JtaTransactionManager.getStatus(JtaTransactionManager.java:205)</p><p>}}}}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>Second</strong> way</p><p><a class="jive-link-external-small" href="http://docs.jboss.org/drools/release/5.3.0.CR1/drools-expert-docs/html/ch04.html#d0e2134" target="_blank">http://docs.jboss.org/drools/release/5.3.0.CR1/drools-expert-docs/html/ch04.html#d0e2134</a></p><p><a class="jive-link-external-small" href="http://docs.jboss.org/jbpm/v5.1/javadocs/org/drools/runtime/StatefulKnowledgeSession.html" target="_blank">http://docs.jboss.org/jbpm/v5.1/javadocs/org/drools/runtime/StatefulKnowledgeSession.html</a></p><p>Code</p><p>{{{</p><p>     org.hibernate.Session session = ...</p><p>     StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();</p><p>     ksession.setGlobal("hbnSession", session);</p><p>}}}</p><p>Error</p><p>{{{</p><p>     java.lang.RuntimeException: Unexpected global [hbnSession]</p><p>          at org.drools.common.AbstractWorkingMemory.setGlobal(AbstractWorkingMemory.java:586)</p><p>          at org.drools.impl.StatefulKnowledgeSessionImpl.setGlobal(StatefulKnowledgeSessionImpl.java:332)</p><p>}}}</p><p>   </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>If I get the code that works I'll put it here.</p><p>Greetings</p></div>
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