uk.ac.man.bioinf.apps.optionable
Class NullOptionHandler

java.lang.Object
  |
  +--uk.ac.man.bioinf.apps.optionable.NullOptionHandler

All Implemented Interfaces:

OptionHandler

public class NullOptionHandler

extends Object

implements OptionHandler

NullOptionHandler.java An option handler object that does nothing. Created: Thu Feb 1 17:42:05 2001

Version:

$Id: NullOptionHandler.java,v 1.2 2001/04/11 17:04:42 lord Exp $

Author:

Phillip Lord

Method Summary

void	addOptionable(Optionable optionable) Add an optionable object.
static OptionHandler	getInstance()
void	removeOptionable(Optionable optionable) Remove the following optionable object from the list
void	requestOptionUpdate(Optionable optionable) Request that the optionable object set the the options of the optionable object via its setOptions method.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static OptionHandler getInstance()

addOptionable

public void addOptionable(Optionable optionable)

Description copied from interface: OptionHandler

Add an optionable object. On adding the Optionhandler should set itself as the OptionHandler for the optionable object, and call requestOptionUpdate also.

Specified by:

addOptionable in interface OptionHandler

removeOptionable

public void removeOptionable(Optionable optionable)

Description copied from interface: OptionHandler

Remove the following optionable object from the list

Specified by:

removeOptionable in interface OptionHandler

Parameters:

optionable -

requestOptionUpdate

public void requestOptionUpdate(Optionable optionable)

Description copied from interface: OptionHandler

Request that the optionable object set the the options of the optionable object via its setOptions method. This could be used for a variety of reasons, although the most obvious is a "revert to saved" option.

Specified by:

requestOptionUpdate in interface OptionHandler

Parameters:

optionable - the optionable object

See Also:

Optionable.setOptions(java.lang.Object)