This example shows you how to send a message to an MDB and deliver it within a local transaction
The example will send deploy a simple MDB and demonstrate sending a message and the MDB consuming it, throwing an exception and the message being re delivered.
Please refer to HornetQ Quickstart guide to install it in JBoss AS 5
To deploy and start the server, simply type ./build.sh deploy
(or build.bat deploy
on windows) from the example directory
To run the example, simply type ./build.sh
(or build.bat
on windows) from the example directory
To remove the example profile, simply type ./build.sh undeploy
(or build.bat undeploy
on windows) from the example directory
** make sure that JBOSS_HOME is set to the JBoss installation directory
jndi.properties
file in the directory config
initialContext = new InitialContext();
Queue queue = (Queue) initialContext.lookup("/queue/testQueue");
ConnectionFactory cf = (ConnectionFactory) initialContext.lookup("/ConnectionFactory");
connection = cf.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer messageProducer = session.createProducer(queue);
TextMessage message = session.createTextMessage("This is a text message");
messageProducer.send(message);
TextMessage tm = (TextMessage)message;
System.out.println("message " + text + " received"); if (!textMessage.getJMSRedelivered()) { //Step 11. On first delivery get the transaction, take a look, and throw an exception Transaction tx = tm.getTransaction(); if (tx != null) { System.out.println("something is wrong, there should be no global transaction: " + tx); } else { System.out.println("there is no global transaction, altho the messge delivery is using a local transaction"); System.out.println("lets throw an exception and see what happens"); throw new RuntimeException("DOH!"); } }
System.out.println("The message was redelivered since the message delivery used a local transaction");
finally
block. Closing a JMS connection will automatically close all of its sessions, consumers, producer and browser objectsfinally { if (initialContext != null) { initialContext.close(); } if (connection != null) { connection.close(); } }