Java Enterprise in a Nutshell, Second Edition

Name

ActivationSystem

Synopsis

The ActivationSystem is the backbone of the activation runtime, and interacts with Activators for activating objects and groups, and ActivationMonitors for determining when such activations are necessary. The ActivationSystem handling a particular Java VM can be obtained using the static ActivationGroup.getSystem() method.

The methods on the ActivationSystem are largely used by other classes in the activation package to implement various functions. The Activatable.register() method, for example, registers the activatable object by calling the registerObject() on the ActivationSystem.

                  
public interface ActivationSystem extends Remote {
// Public Constants
   public static final int SYSTEM_PORT;                          //=1098
                  // Public Instance Methods
   public abstract ActivationMonitor activeGroup(
        ActivationGroupID id, ActivationInstantiator group, 
        long incarnation) throws UnknownGroupExceptionActivationException, RemoteException;  
   public abstract ActivationDesc getActivationDesc(
        ActivationID id) throws
	ActivationException, UnknownObjectException, RemoteException;  
   public abstract ActivationGroupDesc getActivationGroupDesc(
        ActivationGroupID id) throws ActivationException,
        UnknownGroupException, RemoteException;  
   public abstract ActivationGroupID registerGroup(
        ActivationGroupDesc desc) throws ActivationException, RemoteException;  
   public abstract ActivationID registerObject( ActivationDesc ...