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A question about the transaction?

created by Michael Owen in EJB3 - View the full discussion

I created an MDB in my project.As follows:

 

/**

* Message-Driven Bean implementation class for: QueueListenerMDB

*/

@MessageDriven(activationConfig = {

                    @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),

                    @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/test") })

@Interceptors(SpringBeanAutowiringInterceptor.class)

public class QueueListenerMDB implements MessageListener {

          /**

           * Default constructor.

           */

          public QueueListenerMDB() {

          }

 

 

          /**

           * @see MessageListener#onMessage(Message)

           */

          public void onMessage(Message message) {

                    sendMessage(message);

          }

 

 

          public void sendMessage(Message message) {

                    try {

                              if (message instanceof TextMessage) {

                                        System.out.println("Queue: I received a TextMessage at "

                                                            + new Date());

                                        TextMessage msg = (TextMessage) message;

                                        System.out.println("Message is : " + msg.getText());

                              } else if (message instanceof ObjectMessage) {

                                        System.out.println("Queue: I received an ObjectMessage at "

                                                            + new Date());

                                        ObjectMessage msg = (ObjectMessage) message;

                                        DBTrigger trigger = (DBTrigger) msg.getObject();

 

                                        triggerService.saveTrigger(trigger);

 

                                        System.out.println("trigger Details: ");

                                        System.out.println(trigger);

                              } else {

                                        System.out.println("Not valid message for this Queue MDB");

                              }

                    } catch (JMSException e) {

                              e.printStackTrace();

                    }

          }

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