jaitools.jiffle.runtime
Class NullProgressListener

java.lang.Object
  jaitools.jiffle.runtime.AbstractProgressListener
      jaitools.jiffle.runtime.NullProgressListener

All Implemented Interfaces:

JiffleProgressListener

public class NullProgressListener
extends AbstractProgressListener

A no-action progress listener. All methods are empty and getUpdateInterval() returns Long.MAX_VALUE so that the runtime object never bothers calling.

Since:

1.1

Version:

$Id: NullProgressListener.java 1430 2011-02-18 07:21:56Z michael.bedward $

Author:

Michael Bedward

Field Summary

Fields inherited from class jaitools.jiffle.runtime.AbstractProgressListener

taskSize, updateInterval, updateProp

Constructor Summary

NullProgressListener()

Method Summary

void	finish() Called by the runtime object when the task finishes.
long	getUpdateInterval() Gets the update interval.
void	start() Called by the runtime object when the task starts.
void	update(long numPixels) Called by the runtime object at update intervals as specified by either JiffleProgressListener.setUpdateInterval(long) or JiffleProgressListener.setUpdateInterval(double).

Methods inherited from class jaitools.jiffle.runtime.AbstractProgressListener

setTaskSize, setUpdateInterval, setUpdateInterval

Methods inherited from class java.lang.Object

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

Constructor Detail

NullProgressListener

public NullProgressListener()

Method Detail

start

public void start()

Description copied from interface: JiffleProgressListener

Called by the runtime object when the task starts.

update

public void update(long numPixels)

Description copied from interface: JiffleProgressListener

Called by the runtime object at update intervals as specified by either JiffleProgressListener.setUpdateInterval(long) or JiffleProgressListener.setUpdateInterval(double).

It is important to keep the amount of processing done in this method to a minimum.

Parameters:

numPixels - number of pixels processed

finish

public void finish()

Description copied from interface: JiffleProgressListener

Called by the runtime object when the task finishes.

getUpdateInterval

public long getUpdateInterval()

Gets the update interval.

Specified by:

getUpdateInterval in interface JiffleProgressListener

Overrides:

getUpdateInterval in class AbstractProgressListener

Returns:

Always returns Long.MAX_VALUE which effectively means "don't bother calling me".