jp.lang
Class ObjectDistributor

java.lang.Object
  jp.lang.Distributor
      jp.lang.ObjectDistributor

All Implemented Interfaces:

java.io.Serializable

public class ObjectDistributor

extends Distributor

ObjectDistributor implements the default object distribution strategy; it selects machines using this strategy: - if a machine's priority is NEVER, it is never chosen, - if a machine was the last machine, that was declared to be the prefered machine (ALWAYS), it is selected always - if a new machine's priority is set to ALWAYS, the former prefered machine's priority is reset to DEFAULT - if there is no prefered machine, then a random machine (with DEFAULT priority) is chosen

Since:

JP0.1

Author:

Matthias Zenger, Bernhard Haumacher

See Also:

Distributor, Serialized Form

Field Summary

Fields inherited from class jp.lang.Distributor

ALWAYS, DEFAULT, NEVER

Constructor Summary

ObjectDistributor()

Method Summary

int	getPriority(int target) get the current priority of a machine
Distributor	reset() reset all machine priorities to the default value (return this)
Distributor	setPriority(int target, int priority) set the priority of a machine (return this)
int	target(int jvmCnt, java.lang.String classname) return a target machine for class- or constructor-object of class
void	update() callback method that is invoked by the runtime system when runtime data changes

Methods inherited from class jp.lang.Distributor

loadDistributor

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ObjectDistributor

public ObjectDistributor()

Method Detail

update

public void update()

Description copied from class: Distributor

callback method that is invoked by the runtime system when runtime data changes

Overrides:

update in class Distributor

reset

public Distributor reset()

Description copied from class: Distributor

reset all machine priorities to the default value (return this)

Specified by:

reset in class Distributor

setPriority

public Distributor setPriority(int target,
                               int priority)

Description copied from class: Distributor

set the priority of a machine (return this)

Specified by:

setPriority in class Distributor

getPriority

public int getPriority(int target)

Description copied from class: Distributor

get the current priority of a machine

Specified by:

getPriority in class Distributor

target

public int target(int jvmCnt,
                  java.lang.String classname)

Description copied from class: Distributor

return a target machine for class- or constructor-object of class

Specified by:

target in class Distributor