JBoss & callbacks

[pogromcaklusek]

Hi,

I've question - how do you implement callbacks (event listeners) using JBoss & EJB? I mean case, where server is event source, and client is an listener.

I think there is a great place for AOP & JBossRemoting,
I wanted to implement such aspect, but before, I want to ask if there is any existing solution

Question is - is it possible with tools we have, or I need to create new one?

test code would be:
Client:

@SomeCallbackAnnotation
IMyCallback my_c = new IMyCallback() {
 onEvent(Object evt) {
 System.out.println("Event!" + evt);
 }
}

IRemoteApp app = ...
app.foo(my_c);

Server:

class AppImpl {
 foo(IMyCallback c) {
 ...
 c.onEvent("Server says hello");
 ...
 }
}

Client's response:

Event! Server says hello

thanks, Dominik