[jboss-user] [JBoss Seam] - Entity Manager Woes

[msduk]

Ok I have oficially downgraded myslef to n00b after a large amount of previous success with seam.

Basically I am trying to use the entity manager from an external thread. I have the entity manager.


  | EntityManager em = null;
  | 		
  | 		try {
  | 			jndi = new InitialContext();
  | 			//TODO get name from settings
  | 			EntityManagerFactory emf = (EntityManagerFactory) 
  | 				jndi.lookup("java:/myEntityManagerFactory");
  | 			em = emf.createEntityManager();
  | 			NrgOrder nrgOrder = em.find(NrgOrder.class, 1);
  | 			nrgOrder.setState(NrgOrder.SEND_ERR);
  | 			em.persist(nrgOrder);
  | 			log.debug(nrgOrder.getState());
  | 			em.close();
  | 		} catch (Exception e) {
  | 			e.printStackTrace();
  | 		} finally {
  | 			try {
  | 				if(jndi!=null) jndi.close();
  | 			} catch (NamingException e) {
  | 				e.printStackTrace();
  | 			}
  | 		}

the myEntityManagerFactory is the same one as seam references (I think) as defined by the following...


<persistence>
  | 	<persistence-unit name="nrg2">
  |       <provider>org.hibernate.ejb.HibernatePersistence</provider>
  |       <jta-data-source>java:/myDatasource</jta-data-source>
  |       <properties>
  |          <!-- <property name="hibernate.hbm2ddl.auto" value="create"/>  -->
  |          <property name="hibernate.cache.use_query_cache" value="true"/>
  |          <property name="hibernate.show_sql" value="true"/>
  |          <property name="jboss.entity.manager.factory.jndi.name" value="java:/myEntityManagerFactory"/>
  |          <property name="jboss.entity.manager.jndi.name" value="java:/entityManager"/>
  |       </properties>
  | 	</persistence-unit>
  | </persistence>
  | 
  | 
  | and...
  | 
  | <?xml version="1.0" encoding="utf-8"?>
  | <components>
  |     <component name="org.jboss.seam.core.init">
  | 		<property name="debug">true</property>
  |         <property name="myFacesLifecycleBug">true</property>
  |         <property name="jndiPattern">my/#{ejbName}/local</property>
  |     </component>
  | 
  |     <component name="entityManager" class="org.jboss.seam.core.ManagedPersistenceContext">
  |         <property name="persistenceUnitJndiName">java:/myEntityManagerFactory</property>
  |     </component>
  |     
  |      <component name="org.jboss.seam.core.manager">
  |         <property name="conversationTimeout">300000</property>
  |     </component>
  | 
  |     <component class="org.jboss.seam.core.Ejb" installed="false"/>
  | </components>
  | 
  | 

I am able to load using the above snippet but no updates are taking place.

I am calling close() with no joy. I tried calling flush() but i get 


14:17:30,375 ERROR [STDERR] javax.persistence.TransactionRequiredException: no transaction is in progress
  | 14:17:30,375 ERROR [STDERR] 	at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:293)
  | 14:17:30,375 ERROR [STDERR] 	at halvor.schedulers.PendingOrderQuartzTarget.execute(PendingOrderQuartzTarget.java:95)
  | 14:17:30,375 ERROR [STDERR] 	at org.quartz.core.JobRunShell.run(JobRunShell.java:203)
  | 14:17:30,375 ERROR [STDERR] 	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)

If i try and use transaction EntityTransaction et = em.getTransaction();
			et.begin(); I get...



14:19:00,156 ERROR [STDERR] java.lang.IllegalStateException: JTA EntityManager cannot access a transactions
  | 14:19:00,156 ERROR [STDERR] 	at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:316)
  | 14:19:00,156 ERROR [STDERR] 	at halvor.schedulers.PendingOrderQuartzTarget.execute(PendingOrderQuartzTarget.java:91)
  | 14:19:00,156 ERROR [STDERR] 	at org.quartz.core.JobRunShell.run(JobRunShell.java:203)
  | 14:19:00,156 ERROR [STDERR] 	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:520)

I am clearly missing something obvious so can someone point it out to me plesae.

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