register mdb on queue

[hoeft]

Hi!

I am reading the book an I haven't found how to register a MDB on a queue.
I have found some examples in the internet which registers the MDB with the "destination" (JBOSS) property or "destinationName" property (Oracle). Is there a standard-compliant-procedure to register mdb's?

Thanks
Meinert

[wolfc]

EJB3 Core 5.4.16.1
A JMS message-driven bean is associated with a JMS Destination (Queue or Topic) when the bean is
deployed in the container. It is the responsibility of the Deployer to associate the message-driven bean
with a Queue or Topic.

In short: no.

[hoeft]

:-(((((

Thanks a lot
Meinert

[oly]

The short answer is implement the interface

javax.jms.MessageListener

and add the annotation

@MessageDriven

to your class. Here's an example:

@MessageDriven(activateConfig = {
 @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
 @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/MyMDBQueue")
})
// NOTE: the EJB3 JSR says this class must not be final
public class MyMDB implements MessageListener {

 private static final Logger l = Logger.getLogger(MyMDB.class);

 // NOTE: the EJB specification says we must have a public constructor with no arguments
 public MyMDB() {
 // to support spec
 }

 // NOTE: the EJB specification says this method must not be final
 public void onMessage(final Message message) {
 l.debug("*********** GOT MESSAGE: " + message);
 }
}

Thats it, the end, simple ... until you get into persistence and security a bit more.

[vmarco]

What is the property for setting the maxium MDB pool size?

I have tried both:

@ActivationConfigProperty(propertyName = "maximumSize", propertyValue = "20"),

and

@ActivationConfigProperty(propertyName = "maxPoolSize", propertyValue = "20"),

but to no avail.

[am_malu]

In the annotation Oracle wants destinationName and jboss wants destination.

Can I use something which both app server would be happy with.

@MessageDriven(activationConfig={
@ActivationConfigProperty(propertyName="destination", propertyValue="queue/ServiceInvocationQueue"),
@ActivationConfigProperty(propertyName="destinationName", propertyValue="queue/ServiceInvocationQueue"),
@ActivationConfigProperty(propertyName="destinationType", propertyValue="javax.jms.Queue")
})

Jboss throws error when I have this.