drasys.or.graph.sp
Class SingleVertexListenerAdapter

java.lang.Object
  |
  +--drasys.or.graph.sp.SingleVertexListenerAdapter

public class SingleVertexListenerAdapter

extends java.lang.Object

implements SingleVertexListenerI

A convenience object to simplify implementing SingleVertexListenerI. The processing in an algorithm can be monitored by extending this class and calling setListener().

See Also:

SingleVertexI

Constructor Summary

SingleVertexListenerAdapter()

 

Method Summary
void	beginPathTree(VertexI root, boolean isToRoot)           Called before each path tree generation.
void	endPathTree(int pathCnt)           Called after each path tree generation.
void	initialize(GraphI graph, SingleVertexI algorithm)           Called before any path generation.
void	updateVertexCost(VertexI from, EdgeI edge, VertexI to, EdgeValueI values)           Called by the algorithm when a vertex is assigned a new cost.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

SingleVertexListenerAdapter

public SingleVertexListenerAdapter()

initialize

public void initialize(GraphI graph,
                       SingleVertexI algorithm)

Called before any path generation.

Specified by:

initialize in interface SingleVertexListenerI

beginPathTree

public void beginPathTree(VertexI root,
                          boolean isToRoot)

Called before each path tree generation.

Specified by:

beginPathTree in interface SingleVertexListenerI

updateVertexCost

public void updateVertexCost(VertexI from,
                             EdgeI edge,
                             VertexI to,
                             EdgeValueI values)

Called by the algorithm when a vertex is assigned a new cost. This can be used to update element properties like distance and time from/to the root.

Specified by:

updateVertexCost in interface SingleVertexListenerI

endPathTree

public void endPathTree(int pathCnt)

Called after each path tree generation.

Specified by:

endPathTree in interface SingleVertexListenerI