Best way to preloading second-level Cache at Applikationstart?

[seamalex42]

Hi.
My Environment: Seam 2.1.2GA, EJB 3.0, JPS and Hibernate.

I have configured an EHCache 1.7.1 and looking for the best way to initialize (preloading) my cache.
I have tried to implement my own component Cachloader.

Cacheloader

@Scope(ScopeType.APPLICATION)
@Startup(depends="org.jboss.seam.core.applicationContext")
@Name("cacheLoader")
public class CacheLoader {
     @Logger
     private Log log;


     @Create
     public void loadCache(){
          log.info("Starte Cacheinitialisierung");
          Events.instance().raiseEvent("de.tele.cache.initializing");
     }
}

SessionFacade:

import de.tele.catjump.entity.Region;

@Name("regionFacade")
@Scope(ScopeType.APPLICATION)
@Startup(depends="de.tele.catjump.Cachloader")
@Stateless
public class RegionFacadeImpl implements RegionFacade {

     @PersistenceContext(type = PersistenceContextType.EXTENDED)
     private EntityManager em;
     @Logger
     private Log log;

     @Observer("de.tele.cache.initializing")
     public void preload(){
          log.info("Lade Regionen...");
          Query q = em.createQuery("select region from Region region");
          List<Region> result = (List<Region>)q.getResultList();
          for (Region region : result) {
               log.info("loaded Region:" +region);
          }
     }

}

Inside some SessionFaceds, i implement an @Observer('de.tele.cache.initializing') to load the Entities. Now, i get the following Exception at Applikationstart.

Caused by: javax.naming.NameNotFoundException: RegionFacadeImpl not bound
     at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)
     at org.jnp.server.NamingServer.getBinding(NamingServer.java:779)
     at org.jnp.server.NamingServer.getObject(NamingServer.java:785)
     at org.jnp.server.NamingServer.lookup(NamingServer.java:396)
     at org.jnp.server.NamingServer.lookup(NamingServer.java:399)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:713)
     at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:673)
     at javax.naming.InitialContext.lookup(InitialContext.java:392)
     at org.jboss.seam.Component.instantiateSessionBean(Component.java:1400)
     at org.jboss.seam.Component.instantiate(Component.java:1364)
     at org.jboss.seam.Component.newInstance(Component.java:2122)
     ... 64 more

I think, when the event raised, my EJBs are not bound or initialized.
So, can anybody tell me the best way to load some different Entities at the Applikationstart into my cache.
Should i implement one Sessionbean to load different Entities into the Cache or should i raise a event and implement different Observer? Or something else?
Thanks
alex

[javacoryd]

Create a seam bean and put this method in it:

@Observer("org.jboss.seam.postInitialization")
public void postSeamInitialized() {
    // Initialize the cache here
}

[seamalex42]

Thanks for your reply. I will try it.
alex