public interface: ActivationMonitor
All Implemented Interfaces:
is specific to an
and is obtained when a group is
reported active via a call to
(this is done
internally). An activation group is responsible for informing its
when either: its objects become active or
inactive, or the group as a whole becomes inactive.
|Method from java.rmi.activation.ActivationMonitor Detail:|
public void activeObject(ActivationID id,
MarshalledObject<Remote> obj) throws UnknownObjectException, RemoteException
Informs that an object is now active. An
informs its monitor if an object in its group becomes active by
other means than being activated directly (i.e., the object
is registered and "activated" itself).
public void inactiveGroup(ActivationGroupID id,
long incarnation) throws UnknownGroupException, RemoteException
Informs that the group is now inactive. The group will be
recreated upon a subsequent request to activate an object
within the group. A group becomes inactive when all objects
in the group report that they are inactive.
public void inactiveObject(ActivationID id) throws UnknownObjectException, RemoteException
An activation group calls its monitor's
inactiveObject method when an object in its group
becomes inactive (deactivates). An activation group discovers
that an object (that it participated in activating) in its VM
is no longer active, via calls to the activation group's
inactiveObject call informs the
ActivationMonitor that the remote object reference
it holds for the object with the activation identifier,
id, is no longer valid. The monitor considers the
reference associated with
id as a stale reference.
Since the reference is considered stale, a subsequent
activate call for the same activation identifier
results in re-activating the remote object.