CODEWITHSUNDEEP
javajavabeansmessage
user3635684
user3635684

Reputation: 51

Can Message Driven bean implements other interface than MessageListener?

I am new to java enterprise and trying to understand message driven beans. I have implemented a MDB, together with a remote interface, willing my MDB to implement both MessageListener and the remote interface RemoteEjbSenderInterface. Just like that:

@Remote
public interface RemoteEjbSenderInterface
{
public void sendMessage(String mess) throws JMSException;
}

and the MDB

@MessageDriven(activationConfig = { @ActivationConfigProperty(propertyName =    
                                       "messageSelector", propertyValue = "SenderType = 
                                        Receiver"),
                    @ActivationConfigProperty(propertyName =  
                                        "destinationType", propertyValue = 
                                        "javax.jms.Queue"),
                    @ActivationConfigProperty(propertyName = 
                                        "destination", propertyValue = "queue/test")})
public class EjbSender implements MessageListener, RemoteEjbSenderInterface
{
 ...    
}

the problem is that when deploying the application, I get an error saying:

Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: EJB 3.1 FR 5.4.2 MessageDrivenBean com.ericsson.ejb.sender.EjbSender does not implement 1 interface nor specifies message listener interface

this makes me think maybe message driven bean can ONLY implement MessageListener interface and nothing else?

Thanks in advance for your help

Upvotes: 5

Views: 2398

Answers (1)

Erwin Bolwidt
Erwin Bolwidt

Reputation: 31299

If you implement multiple interfaces, you should specify which one is the message listener interface using the attribute messageListenerInterface of the @MessageDriven annotation.

Example:

@MessageDriven(messageListenerInterface=MessageListener.class)

Upvotes: 11

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