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java.lang.Objectjavax.jms.QueueRequestor
The QueueRequestor helper class simplifies
 making service requests.
 
The QueueRequestor constructor is given a non-transacted 
 QueueSession and a destination Queue. It creates a
 TemporaryQueue for the responses and provides a 
 request method that sends the request message and waits 
 for its reply.
 
This is a basic request/reply abstraction that should be sufficient for most uses. JMS providers and clients are free to create more sophisticated versions.
TopicRequestor| Constructor Summary | |
| QueueRequestor(QueueSession session,
               Queue queue)Constructor for the QueueRequestorclass. | |
| Method Summary | |
|  void | close()Closes the QueueRequestorand its session. | 
|  Message | request(Message message)Sends a request and waits for a reply. | 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Constructor Detail | 
public QueueRequestor(QueueSession session,
                      Queue queue)
               throws JMSException
QueueRequestor class.
  
 This implementation assumes the session parameter to be non-transacted,
 with a delivery mode of either AUTO_ACKNOWLEDGE or 
 DUPS_OK_ACKNOWLEDGE.
session - the QueueSession the queue belongs toqueue - the queue to perform the request/reply call on
JMSException - if the JMS provider fails to create the
                         QueueRequestor due to some internal
                         error.
InvalidDestinationException - if an invalid queue is specified.| Method Detail | 
public Message request(Message message)
                throws JMSException
JMSReplyTo destination, and only one reply per request 
 is expected.
message - the message to send
JMSException - if the JMS provider fails to complete the
                         request due to some internal error.
public void close()
           throws JMSException
QueueRequestor and its session.
 Since a provider may allocate some resources on behalf of a 
 QueueRequestor outside the Java virtual machine, clients 
 should close them when they 
 are not needed. Relying on garbage collection to eventually reclaim 
 these resources may not be timely enough.
  
 
Note that this method closes the QueueSession object 
 passed to the QueueRequestor constructor.
JMSException - if the JMS provider fails to close the
                         QueueRequestor due to some internal
                         error.| 
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Copyright 2003 Sun Microsystems, Inc. All rights reserved.