0 Replies Latest reply on Jun 27, 2002 6:29 PM by Matt Bauer

    Message Consumption failing

    Matt Bauer Newbie

      I am submitting large models for solving to a MQ. Sometimes the engineer pushes the wrong button I need to remove those message before they take CPU time. All the messages have a set of message properties that allow for easy selection by a message selector. I have a business method implemented in a stateless session bean that removes messages from the queue by creating a queueReceiver with a unique message selector. The method works fine on the initial call, but subsequent calls yield nothing. No exceptions or messages, yet the message is their and should have been consumed. I am using JBoss 3.0.0 with the following excerpt of code. Any ideas why this fails?

      QueueSession queueSession =
      connect.createSession(false, Session.AUTO_ACKNOWLEDGE);
      QueueReceiver queueReceiver = queueSession.createReceiver(queue, "A = 'a' AND B = 'b'");
      queueConnection.start();
      Message message = queueReceiver.receiveNoWait();
      queueConnection.stop();
      if (message == null) {
      return false;
      } else {
      return true;
      }