VisualGraphEventMediator (Tensegrity API)

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com.tensegrity.graph.event
Class VisualGraphEventMediator

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

All Implemented Interfaces:: EventListenerTag, VisualEdgeListener, VisualGraphListener, VisualNodeListener

public class VisualGraphEventMediator
extends java.lang.Object
implements VisualGraphListener, VisualNodeListener, VisualEdgeListener

The VisualGraphEventMediator facilitates to gain access to all VisualGraph events, VisualNode events and VisualEdge events.

To be informed about all occurring events an object has to implement the VisualGraphEventMediatorListener interface and then registered at a VisualGraphView instance as event mediator listener.

The VisualGraphEventMediator is always an instance variable of a VisualGraphView and hasn't to be implemented nor registered to any instance of a VisualGraphObject. This is a mandatory commandment!
An implementation of a VisualGraphView always comes with its own VisualGraphEventMediator implementation, which is a major part of the architecture.

Version:: $Id: VisualGraphEventMediator.java,v 1.12 2006/03/23 11:15:10 MichaelKegel Exp $
Author:: MichaelKegel
See Also:: VisualGraphView, VisualGraphEventMediatorListener

Constructor Summary
`VisualGraphEventMediator()` Constructor for VisualGraphEventMediator.

Method Summary
`void`	`addMediatorListener(VisualGraphEventMediatorListener listener)` Adds the `VisualGraphEventMediatorListener` given by `listener` to the `VisualGraphEventMediator` instance such that the listener will be notified about every event that occurs.
`java.util.List`	`getListeners()` Returns a `List` of the `VisualGraphEventMediatorListener`s currently registered.
`void`	`isolatedVisualEdgeAdded(VisualEdgeEvent event)` This method is invoked when an isolated `VisualEdge` is added.
`void`	`isolatedVisualEdgeAdded(VisualGraphEvent visualgraphevent)` An isolated `VisualEdge` was added to the `VisualGraph`.
`void`	`isolatedVisualEdgeRemoved(VisualEdgeEvent event)` This method is invoked when an isolated `VisualEdge` is removed.
`void`	`isolatedVisualEdgeRemoved(VisualGraphEvent visualgraphevent)` An isolated `VisualEdge` was removed from the `VisualGraph`.
`void`	`layout(VisualGraphEvent visualgraphevent)` The structure of the `VisualGraph` has changed by an action on the graph, so that the current layout of the graph has to be applied.
`void`	`removeMediatorListener(VisualGraphEventMediatorListener listener)` Removes the `VisualGraphEventMediatorListener` given by `listener` from the `VisualGraphEventMediator` instance such that the listener will no longer be notified about occuring events.
`void`	`visualEdgeAdded(VisualEdgeEvent event)` This method is invoked when a `VisualEdge` is added.
`void`	`visualEdgeAdded(VisualGraphEvent visualgraphevent)` A `VisualEdge` was added to the `VisualGraph`.
`void`	`visualEdgeAttachRejected(VisualGraphEvent visualgraphevent)` An attachment of a `VisualEdge` was rejected by the graph.
`void`	`visualEdgeRemoved(VisualEdgeEvent event)` This method is invoked when a `VisualEdge` is removed.
`void`	`visualEdgeRemoved(VisualGraphEvent visualgraphevent)` A `VisualEdge` was removed from the `VisualGraph`.
`void`	`visualEdgeSplit(VisualGraphEvent visualgraphevent)` An edge-split was performed.
`void`	`visualNodeAdded(VisualGraphEvent visualgraphevent)` A `VisualNode` was added to the `VisualGraph`.
`void`	`visualNodeAdded(VisualNodeEvent event)` This method is invoked when a `VisualNode` is added.
`void`	`visualNodeDeleteEdgeCascade(VisualGraphEvent visualgraphevent)` An edge-cascade was performed.
`void`	`visualNodeRemoved(VisualGraphEvent visualgraphevent)` A `VisualNode` was added to the `VisualGraph`.
`void`	`visualNodeRemoved(VisualNodeEvent event)` This method is invoked when a `VisualNode` is removed.
`void`	`visualPortAdded(VisualNodeEvent event)` This method is invoked on the listener if a `VisualPort` is added to a `VisualNode`.
`void`	`visualPortRemoved(VisualNodeEvent event)` This method is invoked on the listener if a `VisualPort` is removed from a `VisualNode`.

Methods inherited from class java.lang.Object

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

Constructor Detail

VisualGraphEventMediator

public VisualGraphEventMediator()

Constructor for VisualGraphEventMediator.

Method Detail

addMediatorListener

public void addMediatorListener(VisualGraphEventMediatorListener listener)

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

Parameters:: listener - the VisualGraphEventMediatorListener to add

removeMediatorListener

public void removeMediatorListener(VisualGraphEventMediatorListener listener)

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

Parameters:: listener - the VisualGraphEventMediatorListener to remove

getListeners

public java.util.List getListeners()

Returns a List of the VisualGraphEventMediatorListeners currently registered.

Returns:: List the list of the listeners currently registered