diva.graph.toolbox
Class GraphEventMulticaster

java.lang.Object
  diva.graph.toolbox.GraphEventMulticaster

All Implemented Interfaces:

GraphListener, java.util.EventListener

public class GraphEventMulticaster
extends java.lang.Object
implements GraphListener

A list of GraphListeners which is smart enough to call the correct methods on these listeners given a GraphEvent's ID.

Version:

$Id: GraphEventMulticaster.java 38798 2005-07-08 20:00:01Z cxh $

Author:

Michael Shilman

Accepted Rating:

Yellow

Field Summary

private java.util.List

_listeners The list of graph listeners.

Constructor Summary

GraphEventMulticaster()
Create an empty multicaster object.

Method Summary

void	add(GraphListener l) Add the given listener to the list of listeners.
void	dispatchEvent(GraphEvent e) Dispatch an event to the list of listeners, calling the appropriate method based on the event's ID.
void	edgeHeadChanged(GraphEvent e) Dispatch the edgeHeadChanged() event to the listeners.
void	edgeTailChanged(GraphEvent e) Dispatch the edgeTailChanged() event to the listeners.
java.util.Iterator	listeners() Return an iterator over the list of listeners.
void	nodeAdded(GraphEvent e) Dispatch the nodeAdded() event to each of the listeners.
void	nodeRemoved(GraphEvent e) Dispatch the nodeRemoved() event to each of the listeners.
void	remove(GraphListener l) Remove the given listener from the list of listeners.
void	structureChanged(GraphEvent e) Dispatch the structureChanged() event to each of the listeners.

Methods inherited from class java.lang.Object

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

Field Detail

_listeners

private java.util.List _listeners

The list of graph listeners.

Constructor Detail

GraphEventMulticaster

public GraphEventMulticaster()

Create an empty multicaster object.

Method Detail

add

public void add(GraphListener l)

Add the given listener to the list of listeners.

dispatchEvent

public void dispatchEvent(GraphEvent e)

Dispatch an event to the list of listeners, calling the appropriate method based on the event's ID.

edgeHeadChanged

public void edgeHeadChanged(GraphEvent e)

Dispatch the edgeHeadChanged() event to the listeners.

Specified by:

edgeHeadChanged in interface GraphListener

edgeTailChanged

public void edgeTailChanged(GraphEvent e)

Dispatch the edgeTailChanged() event to the listeners.

Specified by:

edgeTailChanged in interface GraphListener

listeners

public java.util.Iterator listeners()

Return an iterator over the list of listeners.

nodeAdded

public void nodeAdded(GraphEvent e)

Dispatch the nodeAdded() event to each of the listeners.

Specified by:

nodeAdded in interface GraphListener

nodeRemoved

public void nodeRemoved(GraphEvent e)

Dispatch the nodeRemoved() event to each of the listeners.

Specified by:

nodeRemoved in interface GraphListener

remove

public void remove(GraphListener l)

Remove the given listener from the list of listeners.

structureChanged

public void structureChanged(GraphEvent e)

Dispatch the structureChanged() event to each of the listeners.

Specified by:

structureChanged in interface GraphListener