VetoableVisualGraphEventMediator (Tensegrity API)

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com.tensegrity.graph.event
Class VetoableVisualGraphEventMediator

java.lang.Object
  com.tensegrity.graph.event.VetoableVisualGraphEventMediator

All Implemented Interfaces:: EventListenerTag, VetoableVisualGraphListener

public class VetoableVisualGraphEventMediator
extends java.lang.Object
implements VetoableVisualGraphListener

The VetoableVisualGraphEventMediator facilitates to gain access to all vetoable VisualGraphEvents.
The VetoableVisualGraphEventMediator is allways an instance variable of a VisualGraph and hasn't to be implemented nor registered to a VisualGraphObject instance. This is a mandatory commandment!
An implementation of a VisualGraph allways comes with its own VetoableVisualGraphEventMediator implementation and is a major part of the architecture.

To be informed about all occuring vetoable events an object has to implement the VetoableGraphEventMediatorListener interface and then registered at a specific VisualGraph as VetoableVisualGraphEventMediatorListener.

Version:: $Id: VetoableVisualGraphEventMediator.java,v 1.3 2005/04/04 07:16:20 MichaelKegel Exp $
Author:: MichaelKegel

Constructor Summary
`VetoableVisualGraphEventMediator()` Constructor for VetoableGraphEventMediator.

Method Summary
`void`	`addMediatorListener(VetoableVisualGraphEventMediatorListener listener)` Adds the `VetoableVisualGraphEventMediatorListener` given by `listener` to the `VetoableVisualGraphEventMediator` instance such that the listener will be notified about every event that occurs.
`java.util.List`	`getListeners()` Returns a `List` of the `VetoableVisualGraphEventMediatorListener`s currently registered.
`void`	`removeMediatorListener(VetoableVisualGraphEventMediatorListener listener)` Removes the `VetoableVisualGraphEventMediatorListener` given by `listener` from the `VetoableVisualGraphEventMediator` instance such that the listener will no longer be notified about occuring events.
`void`	`vetoableIsolatedVisualEdgePreAdd(VisualGraphEvent visualgraphevent)` This mehtod is called when an isolated `VisualEdge` is about to be added to a `VisualGraph`.
`void`	`vetoableIsolatedVisualEdgePreRemove(VisualGraphEvent visualgraphevent)` This method is called when an isolated `VisualEdge` is about to be removed from a `VisualGraph`.
`void`	`vetoableVisualEdgePreAdd(VisualGraphEvent visualgraphevent)` This mehtod is called when an `VisualEdge` is about to be added to a `VisualGraph`.
`void`	`vetoableVisualEdgePreRemove(VisualGraphEvent visualgraphevent)` This method is called when an `VisualEdge` is about to be removed from a `VisualGraph`.
`void`	`vetoableVisualNodePreAdd(VisualGraphEvent visualgraphevent)` This method is called when a `VisualNode` is about to be added to a `VisualGraph`.
`void`	`vetoableVisualNodePreRemove(VisualGraphEvent visualgraphevent)` This method is called when a `VisualNode` is about to be removed from a `VisualGraph`.

Methods inherited from class java.lang.Object

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

Constructor Detail

VetoableVisualGraphEventMediator

public VetoableVisualGraphEventMediator()

Constructor for VetoableGraphEventMediator.

Method Detail

addMediatorListener

public void addMediatorListener(VetoableVisualGraphEventMediatorListener listener)

Adds the VetoableVisualGraphEventMediatorListener given by listener to the VetoableVisualGraphEventMediator instance such that the listener will be notified about every event that occurs.

Parameters:: listener - the VetoableVisualGraphEventMediatorListener to add

removeMediatorListener

public void removeMediatorListener(VetoableVisualGraphEventMediatorListener listener)

Removes the VetoableVisualGraphEventMediatorListener given by listener from the VetoableVisualGraphEventMediator instance such that the listener will no longer be notified about occuring events.

Parameters:: listener - the VetoableVisualGraphEventMediatorListener to remove

getListeners

public java.util.List getListeners()

Returns a List of the VetoableVisualGraphEventMediatorListeners currently registered.

Returns:: List the list of the listeners currently registered