up
Class NullTreeHandler

java.lang.Object
  up.NullTreeHandler

All Implemented Interfaces:

TreeHandler

public class NullTreeHandler
extends java.lang.Object
implements TreeHandler

Null implementation of the TreeHandler interface.

Method Summary

void	exit() Does nothing.
static NullTreeHandler	getInstance() Returns the singleton instance of this class.
void	init() Does nothing.
void	next(Tree tree) Does nothing.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static NullTreeHandler getInstance()

Returns the singleton instance of this class.

init

public void init()

Does nothing.

Specified by:

init in interface TreeHandler

next

public void next(Tree tree)

Does nothing.

Specified by:

next in interface TreeHandler

Parameters:

tree - a tree

exit

public void exit()

Does nothing.

Specified by:

exit in interface TreeHandler