> So, you'd like to implement some kind of custom routing logic: that
> is, rather than routing on the message type, you may want to route on
> some kind of message property, is that correct?

> If so, the correct way to solve this would be IMO to enhance the
> annotation processing, i.e. by adding some kind of predicate to test
> on received messages, something like:

> @OnMessage(type = Message.class, predicate = FooPredicate.class)
> void handleFooMessage(Message msg) {...} // handles messages of type foo

> public class FooPredicate implements Predicate<Message> {

>    public boolean accept(Message msg) { ... }
> }

> What do you think?