How to use MessageDrivenBean Interface without implementing javax.ejb.MessageDriven-Bean interface.

[Mohit G Gupta]

Source:EJB 3.1 Specification

5.4.6 The Optional MessageDrivenBean Interface

As per the specification,
"In EJB 3.x, the functionality previously provided by the MessageDriven-Bean interface is available to the bean class through selective use of dependency injection (of the
MessageDrivenContext) and optional life-cycle callback methods."

Can someone please provide a example showing

A.Injecting MessageDriven-Bean interface through DI
B.Using MessageDriven-Bean interface using optional lifecycle callback methods.

[Frits Walraven]

A)

@MessageDriven( activationConfig = 
  { @ActivationConfigProperty( propertyName = "destinationType", 
                               propertyValue = "javax.jms.Queue"
                              ) 
  }, mappedName = "jms/websendqueue")
public class TestMDB implements MessageListener {
	
   @Resource 
   private MessageDrivenContext context;
	
   public void onMessage(Message message) {
       . . .
   }
}

and
B)

@MessageDriven( activationConfig = 
  { @ActivationConfigProperty( propertyName = "destinationType", 
                               propertyValue = "javax.jms.Queue"
                              ) 
  }, mappedName = "jms/websendqueue")
public class TestMDB implements MessageListener, MessageDrivenBean {
	
   private MessageDrivenContext context;
	
   private void ejbRemove() {
     // implement the method just like a PreDestroy() method
   }

   private void setMessageDrivenContext(MessageDrivenContext ctx){
       this.context = ctx;
   }
   public void onMessage(Message message) {
       . . .
   }
}

Regards,
Frits

[Mohit G Gupta]

Thanks Frits