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## Package java.rmi.activation

Provides support for RMI Object Activation.

See:
Description

Interface Summary
ActivationInstantiator | An `ActivationInstantiator` is responsible for creating instances of "activatable" objects.
ActivationMonitor | An `ActivationMonitor` is specific to an `ActivationGroup` and is obtained when a group is reported active via a call to `ActivationSystem.activeGroup` (this is done internally).
ActivationSystem | The `ActivationSystem` provides a means for registering groups and "activatable" objects to be activated within those groups.
Activator | The `Activator` facilitates remote object activation.

Class Summary
Activatable | The `Activatable` class provides support for remote objects that require persistent access over time and that can be activated by the system.
ActivationDesc | An activation descriptor contains the information necessary to activate an object: the object's group identifier, the object's fully-qualified class name, the object's code location (the location of the class), a codebase URL path, the object's restart "mode", and, a "marshalled" object that can contain object specific initialization data.
ActivationGroup | An `ActivationGroup` is responsible for creating new instances of "activatable" objects in its group, informing its `ActivationMonitor` when either: its object's become active or inactive, or the group as a whole becomes inactive.
ActivationGroup_Stub | `ActivationGroup_Stub` is a stub class for the subclasses of `java.rmi.activation.ActivationGroup` that are exported as a `java.rmi.server.UnicastRemoteObject`.
ActivationGroupDesc | An activation group descriptor contains the information necessary to create/recreate an activation group in which to activate objects.
ActivationGroupDesc.CommandEnvironment | Startup options for ActivationGroup implementations.
ActivationGroupID | The identifier for a registered activation group serves several purposes: identifies the group uniquely within the activation system, and contains a reference to the group's activation system so that the group can contact its activation system when necessary.
ActivationID | Activation makes use of special identifiers to denote remote objects that can be activated over time.

Exception Summary
ActivateFailedException | This exception is thrown by the RMI runtime when activation fails during a remote call to an activatable object.
ActivationException | General exception used by the activation interfaces.
UnknownGroupException | An `UnknownGroupException` is thrown by methods of classes and interfaces in the `java.rmi.activation` package when the `ActivationGroupID` parameter to the method is determined to be invalid, i.e., not known by the `ActivationSystem`.
UnknownObjectException | An `UnknownObjectException` is thrown by methods of classes and interfaces in the `java.rmi.activation` package when the `ActivationID` parameter to the method is determined to be invalid.

## Package java.rmi.activation Description

Provides support for RMI Object Activation. A remote object's reference can be made ``persistent'' and later activated into a ``live'' object using the RMI activation mechanism.

Since:
  1.2

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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