object
Class PublicVariable

java.lang.Object
  object.PublicVariable

Direct Known Subclasses:

CumulativeVariable, DummyVariable, ExclusiveVariable, ViewableVariable

public abstract class PublicVariable
extends java.lang.Object

This is the root class for all share-able variables in an HLA_RePast model. A PublicObject instance may be made up of a mix of PublicVariables and standard Java variables (eg. an agent's position may be represented as ViewablePoint whilst its rule-base (or whatever cognitive model) is represented as a standard Java Hashtable. This would result in changes to position being reflected to RemoteObject proxies of the agent but changes in the rule-base remaining purely within the local JVM. An extensive collection of

Author:

Rob Minson

Nested Class Summary

static class

PublicVariable.OwnershipState

Field Summary

protected boolean	hasValue
protected int	myHandle
protected ObjectLookup	obLook
protected int	ownersHandle
protected PublicVariable.OwnershipState	ownership

Constructor Summary

PublicVariable()

Method Summary

void	addVariableListener(VariableListener listener)
protected boolean	checkOwnership()
boolean	isOwned()
void	removeVariableListener(VariableListener listener)
protected void	requestOwnership()
protected boolean	waitForOwnershipResolution()

Methods inherited from class java.lang.Object

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

Field Detail

ownership

protected PublicVariable.OwnershipState ownership

obLook

protected ObjectLookup obLook

myHandle

protected int myHandle

ownersHandle

protected int ownersHandle

hasValue

protected boolean hasValue

Constructor Detail

PublicVariable

public PublicVariable()

Method Detail

isOwned

public boolean isOwned()

requestOwnership

protected void requestOwnership()
                         throws hla.rti13.java1.RTIexception

Throws:

hla.rti13.java1.RTIexception

checkOwnership

protected boolean checkOwnership()
                          throws java.lang.IllegalStateException,
                                 hla.rti13.java1.RTIexception

Throws:

java.lang.IllegalStateException

hla.rti13.java1.RTIexception

waitForOwnershipResolution

protected boolean waitForOwnershipResolution()

addVariableListener

public void addVariableListener(VariableListener listener)

removeVariableListener

public void removeVariableListener(VariableListener listener)