org.jgrapht.event

Class GraphEdgeChangeEvent<V,E>

java.lang.Object

java.util.EventObject

org.jgrapht.event.GraphChangeEvent

org.jgrapht.event.GraphEdgeChangeEvent<V,E>

Type Parameters:

V - the graph vertex type

E - the graph edge type

All Implemented Interfaces:

Serializable

public class GraphEdgeChangeEvent<V,E>
extends GraphChangeEvent

An event which indicates that a graph edge has changed, or is about to change. The event can be used either as an indication after the edge has been added or removed, or before it is added. The type of the event can be tested using the GraphChangeEvent.getType() method.

Since:

Aug 10, 2003

Author:

Barak Naveh

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	BEFORE_EDGE_ADDED Before edge added event.
static int	BEFORE_EDGE_REMOVED Before edge removed event.
protected E	edge The edge that this event is related to.
static int	EDGE_ADDED Edge added event.
static int	EDGE_REMOVED Edge removed event.
protected V	edgeSource The source vertex of the edge that this event is related to.
protected V	edgeTarget The target vertex of the edge that this event is related to.

Fields inherited from class org.jgrapht.event.GraphChangeEvent

type

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
GraphEdgeChangeEvent(Object eventSource, int type, E edge, V edgeSource, V edgeTarget) Constructor for GraphEdgeChangeEvent.

Method Summary

Modifier and Type	Method and Description
E	getEdge() Returns the edge that this event is related to.
V	getEdgeSource() Returns the source vertex that this event is related to.
V	getEdgeTarget() Returns the target vertex that this event is related to.

Methods inherited from class org.jgrapht.event.GraphChangeEvent

getType

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

BEFORE_EDGE_ADDED

public static final int BEFORE_EDGE_ADDED

Before edge added event. This event is fired before an edge is added to a graph.

See Also:

Constant Field Values

BEFORE_EDGE_REMOVED

public static final int BEFORE_EDGE_REMOVED

Before edge removed event. This event is fired before an edge is removed from a graph.

See Also:

Constant Field Values

EDGE_ADDED

public static final int EDGE_ADDED

Edge added event. This event is fired after an edge is added to a graph.

See Also:

Constant Field Values

EDGE_REMOVED

public static final int EDGE_REMOVED

Edge removed event. This event is fired after an edge is removed from a graph.

See Also:

Constant Field Values

edge

protected E edge

The edge that this event is related to.

edgeSource

protected V edgeSource

The source vertex of the edge that this event is related to.

edgeTarget

protected V edgeTarget

The target vertex of the edge that this event is related to.

Constructor Detail

GraphEdgeChangeEvent

public GraphEdgeChangeEvent(Object eventSource,
                            int type,
                            E edge,
                            V edgeSource,
                            V edgeTarget)

Constructor for GraphEdgeChangeEvent.

Parameters:

eventSource - the source of this event.

type - the event type of this event.

edge - the edge that this event is related to.

edgeSource - edge source vertex

edgeTarget - edge target vertex

Method Detail

getEdge

public E getEdge()

Returns the edge that this event is related to.

Returns:

event edge

getEdgeSource

public V getEdgeSource()

Returns the source vertex that this event is related to.

Returns:

event source vertex

getEdgeTarget

public V getEdgeTarget()

Returns the target vertex that this event is related to.

Returns:

event target vertex