org.placelab.client.tracker
Class FilteredEstimateListener

java.lang.Object
  org.placelab.client.tracker.FilteredEstimateListener

All Implemented Interfaces:

EstimateListener

public class FilteredEstimateListener

extends java.lang.Object

implements EstimateListener

This filters estimateUpdated measurements by either count or time. So, for instance, you could say that you only want to get estimateUpdated every 3 seconds or you could filter by count and get only every fifth estimateUpdated.

You use this by creating it with your EstimateListener object and then registering this with the Tracker you wish to filter estimateUpdated events from.

Field Summary

static int	FILTER_BY_NUMBER
static int	FILTER_BY_TIME

Constructor Summary

FilteredEstimateListener(EstimateListener listener, long interval, int intervalType)
Create a FilteredEstimateListener

Method Summary

void	estimateUpdated(Tracker t, Estimate e, Measurement m) Implement this method to respond to updates from the Tracker(s) you are registered with.

Methods inherited from class java.lang.Object

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

Field Detail

FILTER_BY_TIME

public static final int FILTER_BY_TIME

See Also:

Constant Field Values

FILTER_BY_NUMBER

public static final int FILTER_BY_NUMBER

See Also:

Constant Field Values

Constructor Detail

FilteredEstimateListener

public FilteredEstimateListener(EstimateListener listener,
                                long interval,
                                int intervalType)

Create a FilteredEstimateListener

Parameters:

listener - the object to receive the estimateUpdated messages

interval - the minimum time or count between estimateUpdated messages you want to take

intervalType - either FILTER_BY_NUMBER or FILTER_BY_TIME

Method Detail

estimateUpdated

public void estimateUpdated(Tracker t,
                            Estimate e,
                            Measurement m)

Description copied from interface: EstimateListener

Implement this method to respond to updates from the Tracker(s) you are registered with.

Specified by:

estimateUpdated in interface EstimateListener

Parameters:

t - the Tracker producing the Estimate

e - the Estimate produced by the Tracker

m - the latest Measurement used by the Tracker to produce the Estimate