Writing a transform class that discards/drops messages

[bnc119]

Hi folks,

I am writing a transform class for hornetQ-2.2.8-EAP.  I would like the transform to drop/discard messages that meet certain criteria.  Is this possible?

Is it permissible to return "null" from a transform class?

public class myTransform implements Transformer

{

    public ServerMessage transform(final ServerMessage message)

    {

             if(...){

                 // discard message

             }

    }

}

[clebert.suconic]

You can do that on interceptors, not on transformer.

[clebert.suconic]

However, that seems an easy fix...

The only places Transofmer is used is on DivertImpl and BridgeImpl...

You could maybe change the code to do this on DiverIMpl:

On DiverImpl:;route

      if (transformer != null)

      {

         copy = transformer.transform(copy);

      }

      if (copy != null)

      {

           postOffice.route(copy, context.getTransaction(), false);

      }

On The Bridge.. we probably need some tweak as we need to make sure the message would be acked.

Maybe you could add a JIRA?