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MessageListener in AQ JMS

bala.v reddy
Greenhorn

Joined: Sep 13, 2005
Posts: 4
Hi,

I am using AQ with JMS. when i run receiver with MessageListeners onMessage() method, it receives all messages which are already in Queue, but will not receive notification of any new messages that are enqueued at runtime.

here i am putting sample code

import javax.jms.*;
import oracle.jms.*;
public class SimpleQueueReceiver implements javax.jms.MessageListener
{
String queueName = null;
QueueConnectionFactory queueConnectionFactory = null;
QueueConnection queueConnection = null;
QueueSession queueSession = null;
Queue queue = null;
QueueReceiver queueReceiver = null;
ObjectMessage message = null;
Text1Listener queueListener = null;
SimpleQueueReceiversr =null;
SimpleQueueReceiver(int i)
{
try {
queueConnectionFactory = AQjmsFactory.getQueueConnectionFactory("scdb02.de.db.com", "bcsftp", 1521, "thin");
queueConnection = queueConnectionFactory.createQueueConnection("BCSFTP", "bcsftp");
queueSession = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
queue=((AQjmsSession)queueSession).createQueue("TEST1");
//queue=queueSession.getQueue("THILAK_TEST_QUEUE");
System.out.println("queue: "+queue);
queueReceiver = queueSession.createReceiver(queue);
//queueReceiver = queueSession.createConsumer(queue);
System.out.println("queueReceiver Object Create: ");
sr = new SimpleQueueReceiver();
queueSession.setMessageListener(sr);
queueConnection.start();
System.out.println("AFTER Invoking TextListener(): "+queueSession .getMessageListener());

} catch (Exception e) {
System.out.println("Exception occurred: " +
e.toString());
}

}
public static void main(String[] args) {

SimpleQueueReceiver sr = new SimpleQueueReceiver(1);
try{

synchronized(sr) {
while (true) {
try {
sr.wait();
} catch (InterruptedException ie) {ie.printStackTrace();}
}
}
//sr.closeQueueSession();

}catch(Exception e)
{
System.out.println(e.getMessage());

}

}
public void onMessage(Message message)
{
System.out.println("INSiDE Reading OnMessage(): " );
ObjectMessage msg = null;

try {
if (message instanceof ObjectMessage) {
msg = (ObjectMessage) message;
//System.out.println("Reading message: " + msg.getObject());
TestMessageType test=(TestMessageType)msg.getObject();
System.out.println("Reading message: You Got it ......" +test.getTestMessageType());
} else {
System.out.println("Message of wrong type: " +
message.getClass().getName());
}
//queueSession.commit();
} catch (JMSException e) {
System.out.println("JMSException in onMessage(): " +
e.toString());
}

}
}

Oracle version is 9.2.0.6

Please let me know what is the problem with AQ JMS and how to resolve this issue..
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: MessageListener in AQ JMS