Advanced Queuing - Oracle

JMS Message Consumer Features
{
jms_session.rollback();
booked_order = null;
}
}catch (JMSException ex)
{ System.out.println("Exception " + ex) ;}
return booked_order;
}
Asynchronously Receiving Message Using Message Listener
Message Listener for a Message Consumer
The JMS client can receive messages asynchronously by setting the
MessageListener using the setMessageListener method available with the
Consumer.
When a message arrives for the message consumer, the onMessage method of the
message listener is invoked with the message. The message listener can commit or
abort the receipt of the message. The message listener will not receive messages if
the JMS Connection has been stopped. The receive call must not be used to
receive messages once the message listener has been set for the consumer.
Example
The application processing the new orders queue can be set up for asynchronously
receiving messages from the queue.
public class OrderListener implements MessageListener
{
QueueSession the_sess;
/* constructor */
OrderListener(QueueSession my_sess)
{
the_sess = my_sess;
}
/* message listener interface */
public void onMessage(Message m)
{
ObjectMessage obj_msg;
BolCustomer customer;
BolOrder new_order = null;
12-76 Oracle9i Application Developer’s Guide - Advanced Queuing