gov.sns.tools.correlator
Class PeriodicPoster

java.lang.Object
  |
  +--gov.sns.tools.correlator.PeriodicPoster

All Implemented Interfaces:

java.awt.event.ActionListener, java.util.EventListener

public class PeriodicPoster

extends java.lang.Object

implements java.awt.event.ActionListener

PerodicPoster is an auxiliary class for posting correlations periodically. Unlike the TimedBroadcaster, it strictly only posts the most recent best correlation within a given time interval. Other correlations within that same time period will be dropped. The poster will repeat forever until it is stopped.

Field Summary

protected gov.sns.tools.correlator.PassiveBroadcaster	broadcaster
protected Correlator	correlator
protected javax.swing.Timer	timer

Constructor Summary

PeriodicPoster(Correlator aCorrelator, double period)
Creates a new instance of PeriodicPoster

Method Summary

void	actionPerformed(java.awt.event.ActionEvent event) Implement ActionListener interface to rebroadcast the best correlation.
void	addCorrelationNoticeListener(CorrelationNotice listener) Add the listener of re-broadcast correlation notices.
void	dispose() Dispose of the poster
Correlator	getCorrelator() Get the associated correlator
double	getPeriod() Get the timer period
boolean	isRunning() Determine if the poster is running
void	removeCorrelationNoticeListener(CorrelationNotice listener) Remove the listener of re-broadcast correlations
void	restart() Restart posting
void	setPeriod(double period) Set the timer period
void	start() Start the timer
void	stop() Stop posting

Methods inherited from class java.lang.Object

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

Field Detail

correlator

protected Correlator correlator

broadcaster

protected gov.sns.tools.correlator.PassiveBroadcaster broadcaster

timer

protected javax.swing.Timer timer

Constructor Detail

PeriodicPoster

public PeriodicPoster(Correlator aCorrelator,
                      double period)

Creates a new instance of PeriodicPoster

Parameters:

aCorrelator - The correlator providing the correlations.

period - The posting period.

Method Detail

getCorrelator

public Correlator getCorrelator()

Get the associated correlator

Returns:

the correlator providing the correlations.

getPeriod

public double getPeriod()

Get the timer period

Returns:

The timer period.

setPeriod

public void setPeriod(double period)

Set the timer period

Parameters:

period - The new timer period.

isRunning

public boolean isRunning()

Determine if the poster is running

Returns:

true if the poster is running and false if not.

start

public void start()

Start the timer

stop

public void stop()

Stop posting

restart

public void restart()

Restart posting

dispose

public void dispose()

Dispose of the poster

addCorrelationNoticeListener

public void addCorrelationNoticeListener(CorrelationNotice listener)

Add the listener of re-broadcast correlation notices.

Parameters:

listener - A listener of the correlation notice.

removeCorrelationNoticeListener

public void removeCorrelationNoticeListener(CorrelationNotice listener)

Remove the listener of re-broadcast correlations

Parameters:

listener - A listener of the correlation notice.

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent event)

Implement ActionListener interface to rebroadcast the best correlation.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

event - The timer event indicating that it is time to post a correlation.