org.geotools.graph.traverse.basic
Class SimpleGraphWalker

java.lang.Object
  org.geotools.graph.traverse.basic.SimpleGraphWalker

All Implemented Interfaces:

GraphWalker

public class SimpleGraphWalker

extends java.lang.Object

implements GraphWalker

A simple implementation of GraphWalker that decorates a GraphVisitor.

Author:

Justin Deoliveira, Refractions Research Inc, jdeolive@refractions.net

Constructor Summary

SimpleGraphWalker(GraphVisitor visitor)
Creates a GraphWalker from a preexising GraphVisitor.

Method Summary

void	finish() Does nothing.
GraphVisitor	getVistor() Returns the underlying visitor.
void	setVisitor(GraphVisitor visitor) Sets the underlying visitor.
int	visit(Graphable element, GraphTraversal traversal) Defers to the underlying visitor.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleGraphWalker

public SimpleGraphWalker(GraphVisitor visitor)

Creates a GraphWalker from a preexising GraphVisitor.

Parameters:

visitor - The visitor to decorate

Method Detail

getVistor

public GraphVisitor getVistor()

Returns the underlying visitor.

Returns:

The visitor being decorated by the walker.

setVisitor

public void setVisitor(GraphVisitor visitor)

Sets the underlying visitor.

Parameters:

visitor - The visitor to be decorated by the walker.

visit

public int visit(Graphable element,
                 GraphTraversal traversal)

Defers to the underlying visitor.

Specified by:

visit in interface GraphWalker

Parameters:

element - The component being visited.

traversal - The traversal controlling the sequence of graph component visits.

Returns:

GraphTraversal#CONTINUE to signal that the traversal should continue.
GraphTraversal#CONTINUE to signal that the traversal should suspend.
GraphTraversal#KILL_BRANCH to signal that the traversal should kill its current branch.
GraphTraversal#STOP to signal that the traversal should stop.

See Also:

GraphWalker.visit(Graphable, GraphTraversal)

finish

public void finish()

Does nothing.

Specified by:

finish in interface GraphWalker

See Also:

GraphWalker.finish()