org.xnap.commons.io
Class NullProgressMonitor

java.lang.Object
  org.xnap.commons.io.NullProgressMonitor

All Implemented Interfaces:

ProgressMonitor

public class NullProgressMonitor
extends Object
implements ProgressMonitor

Null pattern implementation of the ProgressMonitor interface.

Field Summary

static NullProgressMonitor

MONITOR Static instance that can be used so no new null monitors have to be allocated.

Constructor Summary

NullProgressMonitor()

Method Summary

Component	getComponent() Returns null.
boolean	isCancelled() Returns false.
void	setCancelEnabled(boolean enabled) Does nothing.
void	setText(String text) Does nothing.
void	setTotalSteps(long max) Does nothing.
void	setValue(long value) Does nothing.
void	work(long amount) Does nothing.

Methods inherited from class java.lang.Object

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

Field Detail

MONITOR

public static final NullProgressMonitor MONITOR

Static instance that can be used so no new null monitors have to be allocated.

Constructor Detail

NullProgressMonitor

public NullProgressMonitor()

Method Detail

isCancelled

public boolean isCancelled()

Returns false.

Specified by:

isCancelled in interface ProgressMonitor

setCancelEnabled

public void setCancelEnabled(boolean enabled)

Does nothing.

Specified by:

setCancelEnabled in interface ProgressMonitor

setTotalSteps

public void setTotalSteps(long max)

Does nothing.

Specified by:

setTotalSteps in interface ProgressMonitor

setValue

public void setValue(long value)

Does nothing.

Specified by:

setValue in interface ProgressMonitor

Parameters:

value - min <= value <= max

setText

public void setText(String text)

Does nothing.

Specified by:

setText in interface ProgressMonitor

work

public void work(long amount)

Does nothing.

Specified by:

work in interface ProgressMonitor

getComponent

public Component getComponent()

Returns null.

Specified by:

getComponent in interface ProgressMonitor

Returns:

null, if this monitor is not displayed by a component; the component, otherwise