0 Replies Latest reply on Aug 19, 2011 4:05 AM by Ben Kirby

    EJB Singletons not 'ApplicationScoped' regarding events in AS7?

    Ben Kirby Newbie

      Hi, was hoping someone could clarify this for me.


      I have an EJB Singleton, onto which I inject a managed bean:


      @LocalBean
      @Startup
      @Singleton
      public class EventManagementEJBSingleton {
      
           @Inject protected TypeAEventFirer eventFirerA;
      



      This bean fires an event:


           @Inject @TypeA private Event<String> event;
           
           public void fireEvent(){
                event.fire(name+" FIRED");     
           }
      



      There's an observer method on the EJB Singleton that I think should be notified when the event fires:


           public void onEvent(@Observes @Any String eventMsg) {
                System.out.println(String.format(name+" received event: [%s]", eventMsg));
                setAnyEventReceived(true);
           }
      



      However it isn't. Is my syntax incorrect somewhere? I believe this behaviour DID work in AS6 (although I didn't have this exact test written then, hence the typo paranoia).


      If I add notifyObserver = Reception.IF_EXISTS to the Observes annotation on the Singleton, Weld tells me that it's not allowed, because the bean is @DependentScoped. Does this mean the EJB Singletons were treated as 'ApplicationScoped' in AS6, but are no longer? As an aside, I can see that ApplicationScoped beans CAN observe the event I'm firing, just not EJB Singletons.


      The upshot of this is that EJB Singleton observer methods I wrote as part of our CDI framework for AS6 are no longer notified, which pretty much breaks it. I need the beans to be EJB Singletons so I can have them created @Startup and bound into JNDI - I don't believe either of these are possible in AS7 with ApplicationScoped beans.


      Any help much appreciated!


      Thanks,
      Ben