Advanced Queuing - Oracle

JMS Message Consumer Features
}
/* get a handle to the new_orders queue */
queue = ((AQjmsSession) jms_session).getQueue("OE", "OE_neworders_que");
qrec = jms_session.createReceiver(queue);
/* wait for 60 seconds for a message to show up in the queue */
obj_message = (ObjectMessage)qrec.receive(60000);
new_order = (BolOrder)obj_message.getObject();
customer = new_order.getCustomer();
state = customer.getState();
System.out.println("Order: for customer " +
customer.getName());
}
catch (JMSException ex)
{
System.out.println("Exception: " + ex);
}
return new_order;
Example Code: Nonblocking
public BolOrder poll_new_order3(QueueSession jms_session)
{
Queue queue;
QueueReceiver qrec;
ObjectMessage obj_message;
BolCustomer customer;
BolOrder new_order = null;
String state;
try
{
/* get a handle to the new_orders queue */
queue = ((AQjmsSession) jms_session).getQueue("OE", "OE_neworders_que");
qrec = jms_session.createReceiver(queue);
/* check for a message to show in the queue */
obj_message = (ObjectMessage)qrec.receiveNoWait();
12-68 Oracle9i Application Developer’s Guide - Advanced Queuing