ptolemy.vergil.actor
Class ActorGraphModel.LinkModel.LinkChangeListener

java.lang.Object
  ptolemy.vergil.actor.ActorGraphModel.LinkModel.LinkChangeListener

All Implemented Interfaces:

ChangeListener

Enclosing class:

ActorGraphModel.LinkModel

public class ActorGraphModel.LinkModel.LinkChangeListener
extends java.lang.Object
implements ChangeListener

This change listener is responsible for dispatching graph events when an edge is moved. It works the same for heads and tails.

Field Summary

private CompositeEntity	_container
private java.lang.StringBuffer	_failMoML
private Link	_link

Constructor Summary

ActorGraphModel.LinkModel.LinkChangeListener(Link link, CompositeEntity container, java.lang.StringBuffer failMoML)
Construct a link change listener.

Method Summary

void	changeExecuted(ChangeRequest change) Called after the change has been executed.
void	changeFailed(ChangeRequest change, java.lang.Exception exception) Handled a failed change request.

Methods inherited from class java.lang.Object

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

Field Detail

_link

private Link _link

_container

private CompositeEntity _container

_failMoML

private java.lang.StringBuffer _failMoML

Constructor Detail

ActorGraphModel.LinkModel.LinkChangeListener

public ActorGraphModel.LinkModel.LinkChangeListener(Link link,
                                                    CompositeEntity container,
                                                    java.lang.StringBuffer failMoML)

Construct a link change listener.

Parameters:

link - The link.

container - The container.

failMoML - MoML that cleans up the model if the change request fails.

Method Detail

changeFailed

public void changeFailed(ChangeRequest change,
                         java.lang.Exception exception)

Handled a failed change request.

Specified by:

changeFailed in interface ChangeListener

Parameters:

change - The change request.

exception - The exception.

changeExecuted

public void changeExecuted(ChangeRequest change)

Called after the change has been executed.

Specified by:

changeExecuted in interface ChangeListener

Parameters:

change - The change request.