Topic: How do i write listener class

Re: How do i write listener class

Posted By: rajeev_kumar
Posted On: Thursday, October 3, 2002 06:23 AM

You have write Message Driven Bean for this, find the details on java.sun.com

Design would be as follows, as soon as the message is posted on Topic/Queue, as Message Driven Bean is registered with Topic/Queue, it will trigger off the Message Driven Bean onMessage() method, in which u can do all the business processing logic or something else u want to do,
Hope this Helps

Report | Quote This | Send private message | Reply | Print

Re: How do i write listener class

Posted By: rajeev_kumar
Posted On: Thursday, October 3, 2002 06:23 AM

You have write Message Driven Bean for this, find the details on java.sun.com

Design would be as follows, as soon as the message is posted on Topic/Queue, as Message Driven Bean is registered with Topic/Queue, it will trigger off the Message Driven Bean onMessage() method, in which u can do all the business processing logic or something else u want to do,
Hope this Helps

Report | Quote This | Send private message | Reply | Print

Re: How do i write listener class

Posted By: Anonymous
Posted On: Wednesday, October 2, 2002 01:54 AM

The reciever has to be registered to JMS. If a message arrives the JMS implementation (e.g. your Application Server) invokes the call-back-method "onMessage()". The message is passed as parameter.


public void onMessage(Message message) {
  if (message instanceof TextMessage) {
    TextMessage textMessage = (TextMessage) message;
    // parse the XML string
  }
}

Report | Quote This | Send private message | Reply | Print