org.terracotta.statistics.derived.latency

Class LatencySimpleMovingAverage

java.lang.Object

org.terracotta.statistics.derived.latency.LatencySimpleMovingAverage

All Implemented Interfaces:

LatencyStatistic, ChainedEventObserver, ChainedObserver

public class LatencySimpleMovingAverage
extends Object
implements ChainedEventObserver, LatencyStatistic

Author:

cdennis, Mathieu Carbou

Constructor Summary

Constructors

Constructor and Description
LatencySimpleMovingAverage(long time, TimeUnit unit)
LatencySimpleMovingAverage(long time, TimeUnit unit, int partitionCount)

Method Summary

Modifier and Type	Method and Description
double	average()
void	event(long timeNs, long latencyNs) Called to indicate an event happened.
Long	maximum()
Long	minimum()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.terracotta.statistics.derived.latency.LatencyStatistic

averageStatistic, maximumStatistic, minimumStatistic

Constructor Detail

LatencySimpleMovingAverage

public LatencySimpleMovingAverage(long time,
                                  TimeUnit unit)

LatencySimpleMovingAverage

public LatencySimpleMovingAverage(long time,
                                  TimeUnit unit,
                                  int partitionCount)

Method Detail

average

public final double average()

Specified by:

average in interface LatencyStatistic

Returns:

The average in ns or NaN if no value

maximum

public final Long maximum()

Specified by:

maximum in interface LatencyStatistic

Returns:

The maximum in ns or null if it does not exist yet

minimum

public final Long minimum()

Specified by:

minimum in interface LatencyStatistic

Returns:

The minimum in ns or null if it does not exist yet

event

public void event(long timeNs,
                  long latencyNs)

Description copied from interface: ChainedEventObserver

Called to indicate an event happened.

Specified by:

event in interface ChainedEventObserver

Parameters:

timeNs - the clock at event completion in ns

latencyNs - the event latency in ns