jdk.rmi.activation.ActivationSystem — clojure-interop/java.rmi 1.0.5

The ActivationSystem provides a means for registering groups and "activatable" objects to be activated within those groups. The ActivationSystem works closely with the Activator, which activates objects registered via the ActivationSystem, and the ActivationMonitor, which obtains information about active and inactive objects, and inactive groups.

active-group clj

(active-group this id group incarnation)

Callback to inform activation system that group is now active. This call is made internally by the ActivationGroup.createGroup method to inform the ActivationSystem that the group is now active.

id - the activation group's identifier - java.rmi.activation.ActivationGroupID group - the group's instantiator - java.rmi.activation.ActivationInstantiator incarnation - the group's incarnation number - long

returns: monitor for activation group - java.rmi.activation.ActivationMonitor

throws: java.rmi.activation.UnknownGroupException - if group is not registered

get-activation-desc clj

(get-activation-desc this id)

Returns the activation descriptor, for the object with the activation identifier, id.

id - the activation identifier for the activatable object - java.rmi.activation.ActivationID

returns: the activation descriptor - java.rmi.activation.ActivationDesc

throws: java.rmi.activation.UnknownObjectException - if id is not registered

get-activation-group-desc clj

(get-activation-group-desc this id)

Returns the activation group descriptor, for the group with the activation group identifier, id.

id - the activation group identifier for the group - java.rmi.activation.ActivationGroupID

returns: the activation group descriptor - java.rmi.activation.ActivationGroupDesc

throws: java.rmi.activation.UnknownGroupException - if id is not registered

register-group clj

(register-group this desc)

Register the activation group. An activation group must be registered with the ActivationSystem before objects can be registered within that group.

desc - the group's descriptor - java.rmi.activation.ActivationGroupDesc

returns: an identifier for the group - java.rmi.activation.ActivationGroupID

throws: java.rmi.activation.ActivationException - if group registration fails

register-object clj

(register-object this desc)

The registerObject method is used to register an activation descriptor, desc, and obtain an activation identifier for a activatable remote object. The ActivationSystem creates an ActivationID (a activation identifier) for the object specified by the descriptor, desc, and records, in stable storage, the activation descriptor and its associated identifier for later use. When the Activator receives an activate request for a specific identifier, it looks up the activation descriptor (registered previously) for the specified identifier and uses that information to activate the object.

desc - the object's activation descriptor - java.rmi.activation.ActivationDesc

returns: the activation id that can be used to activate the object - java.rmi.activation.ActivationID

throws: java.rmi.activation.ActivationException - if registration fails (e.g., database update failure, etc).

set-activation-desc clj

(set-activation-desc this id desc)

Set the activation descriptor, desc for the object with the activation identifier, id. The change will take effect upon subsequent activation of the object.

id - the activation identifier for the activatable object - java.rmi.activation.ActivationID desc - the activation descriptor for the activatable object - java.rmi.activation.ActivationDesc

returns: the previous value of the activation descriptor - java.rmi.activation.ActivationDesc

throws: java.rmi.activation.UnknownGroupException - the group associated with desc is not a registered group

set-activation-group-desc clj

(set-activation-group-desc this id desc)

Set the activation group descriptor, desc for the object with the activation group identifier, id. The change will take effect upon subsequent activation of the group.

id - the activation group identifier for the activation group - java.rmi.activation.ActivationGroupID desc - the activation group descriptor for the activation group - java.rmi.activation.ActivationGroupDesc

returns: the previous value of the activation group descriptor - java.rmi.activation.ActivationGroupDesc

throws: java.rmi.activation.UnknownGroupException - the group associated with id is not a registered group

shutdown clj

(shutdown this)

Shutdown the activation system. Destroys all groups spawned by the activation daemon and exits the activation daemon.

throws: java.rmi.RemoteException - if failed to contact/shutdown the activation daemon

unregister-group clj

(unregister-group this id)

Remove the activation group. An activation group makes this call back to inform the activator that the group should be removed (destroyed). If this call completes successfully, objects can no longer be registered or activated within the group. All information of the group and its associated objects is removed from the system.

id - the activation group's identifier - java.rmi.activation.ActivationGroupID

throws: java.rmi.activation.ActivationException - if unregister fails (e.g., database update failure, etc).

unregister-object clj

(unregister-object this id)

Remove the activation id and associated descriptor previously registered with the ActivationSystem; the object can no longer be activated via the object's activation id.

id - the object's activation id (from previous registration) - java.rmi.activation.ActivationID

throws: java.rmi.activation.ActivationException - if unregister fails (e.g., database update failure, etc).