com.acme.util.jms
Class QueueRequestor

java.lang.Object
  com.acme.util.jms.QueueRequestor

public class QueueRequestor
extends Object

Constructor Summary

QueueRequestor(javax.jms.QueueSession session, javax.jms.Queue queue)
Constructor for the QueueRequestor class.

Method Summary

void	close() Closes the QueueRequestor and its session.
javax.jms.Message	request(javax.jms.Message message) Sends a request and waits for a reply.
javax.jms.Message	request(javax.jms.Message message, int wait)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueueRequestor

public QueueRequestor(javax.jms.QueueSession session,
                      javax.jms.Queue queue)
               throws javax.jms.JMSException

Constructor for the QueueRequestor class.

This implementation assumes the session parameter to be non-transacted, with a delivery mode of either AUTO_ACKNOWLEDGE or DUPS_OK_ACKNOWLEDGE.

Parameters:

session - the QueueSession the queue belongs to

queue - the queue to perform the request/reply call on

Throws:

javax.jms.JMSException - if the JMS provider fails to create the QueueRequestor due to some internal error.

javax.jms.InvalidDestinationException - if an invalid queue is specified.

Method Detail

request

public javax.jms.Message request(javax.jms.Message message)
                          throws javax.jms.JMSException

Sends a request and waits for a reply. The temporary queue is used for the JMSReplyTo destination, and only one reply per request is expected.

Parameters:

message - the message to send

Returns:

the reply message

Throws:

javax.jms.JMSException - if the JMS provider fails to complete the request due to some internal error.

request

public javax.jms.Message request(javax.jms.Message message,
                                 int wait)
                          throws javax.jms.JMSException

Throws:

javax.jms.JMSException

close

public void close()
           throws javax.jms.JMSException

Closes the 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.

Throws:

javax.jms.JMSException - if the JMS provider fails to close the QueueRequestor due to some internal error.