salvo.jesus.graph.listener

Class ConnectedSetListener

java.lang.Object

salvo.jesus.graph.listener.NullGraphListener

salvo.jesus.graph.listener.ConnectedSetListener

All Implemented Interfaces:

Serializable, EventListener, GraphListener

public class ConnectedSetListener
extends NullGraphListener

ConnectedSetListener maintains connected set information about the graph on which it is listening.

Version:

$Id: ConnectedSetListener.java,v 1.1 2002/02/28 07:37:57 perfecthash Exp $

Author:

John V. Sichi

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ConnectedSetListener(Graph graph) Construct a new ConnectedSetListener, building sets based on any existing graph components.

Method Summary

Modifier and Type	Method and Description
void	afterEdgeAdded(GraphAddEdgeEvent event) Called when an edge is being added to a graph, just after the graph structure has actually been changed.
void	afterEdgeRemoved(GraphRemoveEdgeEvent event) Called when an edge is being removed from a graph, just after the graph structure has actually been changed.
void	afterVertexAdded(GraphAddVertexEvent event) Called when a vertex is being added to a graph, just after the graph structure has actually been changed.
void	afterVertexRemoved(GraphRemoveVertexEvent event) Called when a vertex is being removed from a graph, just after the graph structure has actually been changed.
Set	getConnectedSet(Vertex v) Get the connected set to which the given vertex belongs.
Collection	getConnectedSets() Get a collection of all connected sets for this graph.

Methods inherited from class salvo.jesus.graph.listener.NullGraphListener

beforeEdgeAdded, beforeEdgeRemoved, beforeVertexAdded, beforeVertexRemoved

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectedSetListener

public ConnectedSetListener(Graph graph)

Construct a new ConnectedSetListener, building sets based on any existing graph components.

Parameters:

graph - the graph on which to construct the listener; this constructor will automatically register the new listener with the graph

Method Detail

getConnectedSet

public Set getConnectedSet(Vertex v)

Get the connected set to which the given vertex belongs.

Parameters:

v - the vertex to search for

Returns:

an unmodifiable Set

getConnectedSets

public Collection getConnectedSets()

Get a collection of all connected sets for this graph.

Returns:

Collection< Set >

afterEdgeAdded

public void afterEdgeAdded(GraphAddEdgeEvent event)

Description copied from interface: GraphListener

Called when an edge is being added to a graph, just after the graph structure has actually been changed.

Specified by:

afterEdgeAdded in interface GraphListener

Overrides:

afterEdgeAdded in class NullGraphListener

Parameters:

event - the event describing the edge addition

afterVertexAdded

public void afterVertexAdded(GraphAddVertexEvent event)

Description copied from interface: GraphListener

Called when a vertex is being added to a graph, just after the graph structure has actually been changed.

Specified by:

afterVertexAdded in interface GraphListener

Overrides:

afterVertexAdded in class NullGraphListener

Parameters:

event - the event describing the vertex addition

afterEdgeRemoved

public void afterEdgeRemoved(GraphRemoveEdgeEvent event)

Description copied from interface: GraphListener

Called when an edge is being removed from a graph, just after the graph structure has actually been changed.

Specified by:

afterEdgeRemoved in interface GraphListener

Overrides:

afterEdgeRemoved in class NullGraphListener

Parameters:

event - the event describing the edge removal

afterVertexRemoved

public void afterVertexRemoved(GraphRemoveVertexEvent event)

Description copied from interface: GraphListener

Called when a vertex is being removed from a graph, just after the graph structure has actually been changed.

Specified by:

afterVertexRemoved in interface GraphListener

Overrides:

afterVertexRemoved in class NullGraphListener

Parameters:

event - the event describing the vertex removal