com.interface21.core
Class NodeCountVisitor

java.lang.Object
  |
  +--com.interface21.core.NodeCountVisitor

All Implemented Interfaces:

Visitor

public class NodeCountVisitor

extends java.lang.Object

implements Visitor

Test Visitor. Useful for testing.

Constructor Summary

NodeCountVisitor()

Method Summary

boolean	enterComposite(Visitable host, int depth) Begin a visit to a composite element, with subnodes.
void	exitComposite(Visitable host) End a visit to a composite element, with subnodes
int	getNodeCount()
protected void	recordVisit(Visitable host)
void	visitLeaf(Visitable host, int depth) Make an entire visit to a terminal node

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeCountVisitor

public NodeCountVisitor()

Method Detail

enterComposite

public boolean enterComposite(Visitable host,
                              int depth)

Description copied from interface: Visitor

Begin a visit to a composite element, with subnodes. Return false to just treat it as a terminal.
Note that either this method or exitComposite(), depending on implementation, must do the actual visit to the composite, as visit() will never be called on this node unless this method returns false.

Specified by:

enterComposite in interface Visitor

See Also:

Visitor.enterComposite(Visitable, int)

recordVisit

protected void recordVisit(Visitable host)

exitComposite

public void exitComposite(Visitable host)

Description copied from interface: Visitor

End a visit to a composite element, with subnodes

Specified by:

exitComposite in interface Visitor

See Also:

Visitor.exitComposite(Visitable)

visitLeaf

public void visitLeaf(Visitable host,
                      int depth)

Description copied from interface: Visitor

Make an entire visit to a terminal node

Specified by:

visitLeaf in interface Visitor

See Also:

Visitor.visitLeaf(Visitable, int)

getNodeCount

public int getNodeCount()