org.jgrapht.event

Interface TraversalListener<V,E>

Type Parameters:

V - the graph vertex type

E - the graph edge type

All Known Implementing Classes:

TraversalListenerAdapter

public interface TraversalListener<V,E>

A listener on graph iterator or on a graph traverser.

Since:

Jul 19, 2003

Author:

Barak Naveh

Method Summary

Modifier and Type	Method and Description
void	connectedComponentFinished(ConnectedComponentTraversalEvent e) Called to inform listeners that the traversal of the current connected component has finished.
void	connectedComponentStarted(ConnectedComponentTraversalEvent e) Called to inform listeners that a traversal of a new connected component has started.
void	edgeTraversed(EdgeTraversalEvent<E> e) Called to inform the listener that the specified edge have been visited during the graph traversal.
void	vertexFinished(VertexTraversalEvent<V> e) Called to inform the listener that the specified vertex have been finished during the graph traversal.
void	vertexTraversed(VertexTraversalEvent<V> e) Called to inform the listener that the specified vertex have been visited during the graph traversal.

Method Detail

connectedComponentFinished

void connectedComponentFinished(ConnectedComponentTraversalEvent e)

Called to inform listeners that the traversal of the current connected component has finished.

Parameters:

e - the traversal event.

connectedComponentStarted

void connectedComponentStarted(ConnectedComponentTraversalEvent e)

Called to inform listeners that a traversal of a new connected component has started.

Parameters:

e - the traversal event.

edgeTraversed

void edgeTraversed(EdgeTraversalEvent<E> e)

Called to inform the listener that the specified edge have been visited during the graph traversal. Depending on the traversal algorithm, edge might be visited more than once.

Parameters:

e - the edge traversal event.

vertexTraversed

void vertexTraversed(VertexTraversalEvent<V> e)

Called to inform the listener that the specified vertex have been visited during the graph traversal. Depending on the traversal algorithm, vertex might be visited more than once.

Parameters:

e - the vertex traversal event.

vertexFinished

void vertexFinished(VertexTraversalEvent<V> e)

Called to inform the listener that the specified vertex have been finished during the graph traversal. Exact meaning of "finish" is algorithm-dependent; e.g. for DFS, it means that all vertices reachable via the vertex have been visited as well.

Parameters:

e - the vertex traversal event.