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

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.

A descriptor registered with the activation system can be used to recreate/activate the object specified by the descriptor. The MarshalledObject in the object's descriptor is passed as the second argument to the remote object's constructor for object to use during reinitialization/activation.

->activation-desc clj

(->activation-desc class-name location data)

(->activation-desc class-name location data restart)

(->activation-desc group-id class-name location data restart)

Constructor.

Constructs an object descriptor for an object whose class name is className that can be loaded from the code location and whose initialization information is data. All objects with the same groupID are activated in the same Java VM.

group-id - the group's identifier (obtained from registering ActivationSystem.registerGroup method). The group indicates the VM in which the object should be activated. - java.rmi.activation.ActivationGroupID class-name - the object's fully package-qualified class name - java.lang.String location - the object's code location (from where the class is loaded) - java.lang.String data - the object's initialization (activation) data contained in marshalled form. - java.rmi.MarshalledObject restart - if true, the object is restarted (reactivated) when either the activator is restarted or the object's activation group is restarted after an unexpected crash; if false, the object is only activated on demand. Specifying restart to be true does not force an initial immediate activation of a newly registered object; initial activation is lazy. - boolean

throws: java.lang.IllegalArgumentException - if groupID is null

equals clj

(equals this obj)

Compares two activation descriptors for content equality.

obj - the Object to compare with - java.lang.Object

returns: true if these Objects are equal; false otherwise. - boolean

get-class-name clj

(get-class-name this)

Returns the class name for the object specified by this descriptor.

returns: the class name - java.lang.String

get-data clj

(get-data this)

Returns a "marshalled object" containing intialization/activation data for the object specified by this descriptor.

returns: the object specific "initialization" data - java.rmi.MarshalledObject<?>

get-group-id clj

(get-group-id this)

Returns the group identifier for the object specified by this descriptor. A group provides a way to aggregate objects into a single Java virtual machine. RMI creates/activates objects with the same groupID in the same virtual machine.

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

get-location clj

(get-location this)

Returns the code location for the object specified by this descriptor.

returns: the code location - java.lang.String

get-restart-mode? clj

(get-restart-mode? this)

Returns the "restart" mode of the object associated with this activation descriptor.

returns: true if the activatable object associated with this activation descriptor is restarted via the activation daemon when either the daemon comes up or the object's group is restarted after an unexpected crash; otherwise it returns false, meaning that the object is only activated on demand via a method call. Note that if the restart mode is true, the activator does not force an initial immediate activation of a newly registered object; initial activation is lazy. - boolean

hash-code clj

(hash-code this)

Return the same hashCode for similar ActivationDescs.

returns: an integer - int