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Sergio Bossa  
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 More options Nov 12 2009, 9:14 am
From: Sergio Bossa <sergio.bo...@gmail.com>
Date: Thu, 12 Nov 2009 15:14:32 +0100
Local: Thurs, Nov 12 2009 9:14 am
Subject: Re: Threading Policies
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On Thu, Nov 12, 2009 at 3:08 PM, Stefan Weber <stefan.we...@gmail.com> wrote:
> Example: I get an ASCII string from the network and wrap it in a Message.
> Then I call getMessageType on it and Message will parse the ASCII string and
> return the message type. Only then I know what specific message it is.

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?

--
Sergio Bossa
Software Passionate and Open Source Enthusiast.
URL: http://www.linkedin.com/in/sergiob


 
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