org.openflow.util
Class RefTrack<REF_TO,REF_FROM>

java.lang.Object
  org.openflow.util.RefTrack<REF_TO,REF_FROM>

public class RefTrack<REF_TO,REF_FROM>
extends java.lang.Object

Tracks which objects refer to some object.

Field Summary

REF_TO

obj the object being tracked

Constructor Summary

RefTrack(REF_TO objToTrack, REF_FROM ref)
Construct a RefTrack with one object referring to another.

Method Summary

void	addRef(REF_FROM o) Adds a reference to obj
boolean	removeRef(REF_FROM o) Removes the reference o and returns true if obj no longer has any references to it.

Methods inherited from class java.lang.Object

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

Field Detail

obj

public final REF_TO obj

the object being tracked

Constructor Detail

RefTrack

public RefTrack(REF_TO objToTrack,
                REF_FROM ref)

Construct a RefTrack with one object referring to another.

Parameters:

objToTrack - the object whose referants are being tracked

ref - an object which refers to objToTrack

Method Detail

addRef

public void addRef(REF_FROM o)

Adds a reference to obj

removeRef

public boolean removeRef(REF_FROM o)

Removes the reference o and returns true if obj no longer has any references to it.