Advanced Queuing - Oracle

JMS Publish-Subscribe Model Features
Example Scenario and Code
In the BooksOnline application, new orders are put into the new_orders_queue. A
client can then browse selected messages.
public void browse_rush_orders(QueueSession jms_session)
{
QueueBrowser browser;
Queue queue;
ObjectMessage obj_message;
BolOrder new_order;
Enumeration messages;
String customer_name;
}
try
{
/* get a handle to the new_orders queue */
queue = ((AQjmsSession) jms_session).getQueue("OE", "OE_neworders_que");
/* create a Browser to look at RUSH orders in USA */
browser = jms_session.createBrowser(queue,
"JMSCorrelationID = ’RUSH’ and country = ’USA’ ");
for (messages = browser.getEnumeration() ; messages.hasMoreElements() ;)
{
obj_message = (ObjectMessage)messages.nextElement();
new_order = (BolOrder)obj_message.getObject();
customer_name = new_order.getCustomer().getName();
System.out.println("Customer " + customer_name +
" has placed a RUSH order");
}
browser.close();
}
catch (Exception ex)
{
System.out.println("Exception " + ex);
}
JMS Publish-Subscribe Model Features
The following topics are discussed in this section:
Creating Applications Using JMS 12-43