[JBoss-dev] [Design of the JBoss EJB Container] - Re: CORBA callback and EJB

2005-01-21 Thread fruehbeck 
I don't know if you are still working on that topic, but anyhow..

It is NOT true, that interworking is not possible implementing a externally 
defined CORBA interface.
I am interworking with a CORBA system using plain EJBs.
You just need a small CORBA wrapper called (typically) TIE implementation.

I did it like the following:

EJBs implement the CORBA-Interface (simple)

ejbCreate() {
   // pass the EJBObject to CORBAServer to not overrule the containers 
invocation stack
   registerEJBObjectinCORBAServer(
   new MyEJBObjectsTIE(context.getEJBObject())
   );

ejbRemove(){
deRegisterEJBObjectfromCORBAServer();
}

Then you just need a means to transport the generated CORBA Object to
any remote client, so that it may be invoked.

Have fun with JBoss!!

If you have any questions about that, post it on this topic 8-) 

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[JBoss-dev] [Design of the JBoss EJB Container] - Re: CORBA callback and EJB

2005-02-18 Thread sunilarora123 
can you tell me how you register the bean in JBOSS ORB. Can you tell me the the 
implementation of registerEJBObjectinCORBAServer method.

registerEJBObjectinCORBAServer(context.getEJBObject()); 


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[JBoss-dev] [Design of the JBoss EJB Container] - Re: CORBA callback and EJB

2005-02-18 Thread fruehbeck 
Write a ServiceLocator doing something like:

public synchronized static ORB getORB() {
// Create and initialize the ORB
try {
if (centralOrb == null) {
log.info("Initializing ORB.");
centralOrb = (org.omg.CORBA.ORB)new 
InitialContext().lookup("java:JBossCorbaORB");
}


}
} catch (NamingException ne) { log.fatal("getORB: "+ne.getMessage()); }
return centralOrb;
}

public synchronized static POA getRootPOA() {
try {
if (centralRootPOA == null) {
log.info("Initializing Root POA.");
centralRootPOA = 
POAHelper.narrow(getORB().resolve_initial_references("RootPOA"));
}
} catch (Exception e) { log.fatal("getRootPOA: "+e.getMessage()); }
return centralRootPOA;
}


and register doing something like (this is really more CORBA than J2EE - 
tedious and less fun ;-):


ObjectPOATie srv = new 
ObjectPOATie((ObjectOperations)this.sessionContext.getEJBLocalObject());

// objectID is used for a POA with IdAssignmentPolicyValue.USER_ID, 
// which is not normally needed, but helps a lot when watching the 
events with a sniffer :-)
String objectID = "MPCCM_"+thisId+"_"+System.currentTimeMillis();

thisCorbaID = getRootPOA().activate_object(servant);


The ObjectPOATie, ObjectOperations should be provided.
The EJBObject has to implement the ObjectOperations of course.



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