I'm trying to create a HA-Singleton service and was wondering if new @Service annotation can be used with an @Clustered annotation and if so what is the semantic for the cluster behavior

So if I have something like

...
@Service
@Clustered
public MyService implements MyServiceManagement
{
.....
}

Does this mean that I have once instance active on each node of the cluster or a single instance active in the entire cluster. If the latter then does it handle the HA failover protocol the same way the HASingletonSupport class does.

cheers

Aaron