[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - Re: Bug in transactional delivery in an MDB

[clebert.suconic@jboss.com]

Just to add some information on this:

At JmsActivation the transactional attribute is taken in consideration. So.. even CF is a XAConnectionFActory it wouldn't use the XA method if the transactional parameter is false on a createSession request.

Relevant code:


  | package org.jboss.resource.adapter.jms.inflow;
  | 
  | public class JmsActivation implements ExceptionListener
  | {
  | 
  | ....
  | 
  |   protected TopicConnection setupTopicConnection(Context ctx, String
  | user, String pass, String clientID) throws Exception
  |    {
  |       String topicFactoryRef = adapter.getTopicFactoryRef();
  |       log.debug("Attempting to lookup topic connection factory " +
  | topicFactoryRef);
  |       TopicConnectionFactory tcf = (TopicConnectionFactory)
  | Util.lookup(ctx, topicFactoryRef, TopicConnectionFactory.class);
  |       log.debug("Got topic connection factory " + tcf + " from " +
  | topicFactoryRef);
  |       log.debug("Attempting to create topic connection with user " +
  | user);
  |       TopicConnection result;
  |       if (tcf instanceof XATopicConnectionFactory &&
  | isDeliveryTransacted)
  |       {
  |          XATopicConnectionFactory xatcf = (XATopicConnectionFactory)
  | tcf;
  |          if (user != null)
  |             result = xatcf.createXATopicConnection(user, pass);
  |          else
  |             result = xatcf.createXATopicConnection();
  |       }
  |       else
  |       {
  |          if (user != null)
  |             result = tcf.createTopicConnection(user, pass);
  |          else
  |             result = tcf.createTopicConnection();
  |       }
  |       if (clientID != null)
  |          result.setClientID(clientID);
  |       result.setExceptionListener(this);
  |       log.debug("Using topic connection " + result);
  |       return result;
  |    }
  | 
  | ....
  | }
  | 
This way a non transacted Session would be aways a plain Connection...
but not for us!

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