[jboss-user] [JBoss Seam] - Pb Initializing database on app startup with postInitializat

[zdaler]

I launch a method on application startup using the org.jboss.seam.postInitialization event. It work fine except if I access the database (and I need to) :

using seam managed entity manager :
@In
  |  private EntityManager em;
  | 
  | @Observer("org.jboss.seam.postInitialization")
  | private void setupAFewThings() throws ComentSystemException {
  |   MyObject w = new MyObject() ;
  |   w.setName("test_name") ;
  |   em.getTransaction().begin();
  |   em.persist(w) ;
  |   em.getTransaction().commit();
  | }

or manually creating a new entity manager like this :

@Observer("org.jboss.seam.postInitialization")
  | private void setupAFewThings() throws ComentSystemException {
  |   MyObject w = new MyObject() ;
  |   w.setName("test_name") ;
  |   EntityManagerFactory emf = Persistence.createEntityManagerFactory("myDatabase");
  |   EntityManager em = emf.createEntityManager();
  |   em.getTransaction().begin();
  |   em.persist(w) ;
  |   em.getTransaction().commit();
  | }

I get the same error ("java.lang.IllegalStateException: JTA EntityManager cannot access a transactions") :
anonymous wrote : 16:26:18,530 ERROR [[/coment_demo]] Exception lors de l'envoi de l'évènement contexte initialisé (context initialized) à l'instance de classe d'écoute (listener) org.jboss.seam.servlet.SeamListener
  | java.lang.IllegalStateException: JTA EntityManager cannot access a transactions
  |         at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:316)
  |         at com.sopinspace.coment.core.WorkflowManager.addDefaultWorkflow(WorkflowManager.java:53)
  |         at com.sopinspace.coment.core.WorkflowManager.create(WorkflowManager.java:62)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  |         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  |         at java.lang.reflect.Method.invoke(Method.java:585)
  |         at org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
  |         at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)

Any help ?

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