Hey Everyone

I wanted to get some clarification regarding the example show at http://seamframework.org/Documentation/WeldAndJPARunningInTomcat

1. Created a class to produce my EntityManager

public class PersistenceProducer {
   @Produces @TicketManager @PersistenceContext(unitName="LogicBoxTicketManager") EntityManager entityManager;
}

2. Create a manager class(Singleton) with a simple qualifier named TicketManager

@Singleton
@Named("TestManager")
public class TestManager {
        @Inject @TicketManager EntityManager entityManager;

        @Transactional
        public void persist(TestBean testBean) {
           entityManager.persist(testBean);
        }
}

3. Added source for the EntityTransactionInterceptor (which I know is being called) and the transactional qualifier

@Transactional
@Interceptor
public class EntityTransactionInterceptor {

        private @Inject @Any EntityManager entityManager;

        @AroundInvoke
        public Object aroundInvoke(InvocationContext invocationContext) throws Exception {
                boolean active = !(entityManager.getTransaction().isActive());
                if(active) {
                        entityManager.getTransaction().begin();
                }
                try {
                        Object result = invocationContext.proceed();
                        if(active) {
                                entityManager.getTransaction().commit();
                        }
                        return result;
                }
                catch (Exception exception) {
                        if (active) entityManager.getTransaction().rollback();
                        throw exception;
                }
        }
}

My question is in regards to the EntityTransactionInterceptor. How does it know to use the instance of the EntityManager defined in the TestManager and not to create a new one? I understand the @Inject basics but how does the Interceptor know which EntityManager to inject? Especially with mine containing another qualifier @TicketManager?

The reason I ask is the sample code runs fine but no record is added to the database. I am assuming this is because it is not getting the correct EntityManager from the TestManager class. If I remove the @Transactional from the persist method and add the following lines around the persist method it works fine.

-> entityManager.getTransaction().begin();
entityManager.persist(auditTypeBean);
-> entityManager.getTransaction().commit();

Thanks for the help in advanced :)