org.terracotta.statistics.extended
Class ExpiringSampledStatistic<T extends Number>

java.lang.Object
  org.terracotta.statistics.extended.SemiExpiringSampledStatistic<T>
      org.terracotta.statistics.extended.ExpiringSampledStatistic<T>

Type Parameters:

T - statistic type

All Implemented Interfaces:

SampledStatistic<T>, SamplingSupport

public class ExpiringSampledStatistic<T extends Number>
extends SemiExpiringSampledStatistic<T>

Statistic that stops sampling history when the last access is after a user supplied timestamp.

Author:

Chris Dennis

Constructor Summary

ExpiringSampledStatistic(ValueStatistic<T> source, ScheduledExecutorService executor, int historySize, long historyPeriod, TimeUnit historyTimeUnit, StatisticType type)
Creates an expiring statistic.

Method Summary

StatisticType	type()
T	value() Value.

Methods inherited from class org.terracotta.statistics.extended.SemiExpiringSampledStatistic

active, expire, history, history, setAlwaysOn, start, startStatistic, stopStatistic, touch

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpiringSampledStatistic

public ExpiringSampledStatistic(ValueStatistic<T> source,
                                ScheduledExecutorService executor,
                                int historySize,
                                long historyPeriod,
                                TimeUnit historyTimeUnit,
                                StatisticType type)

Creates an expiring statistic.

Parameters:

source - statistic source

executor - executor to use for sampling

historySize - size of sample history

historyPeriod - period between samples

historyTimeUnit - unit of period between samples

type - sampling type

Method Detail

value

public T value()

Value.

Specified by:

value in interface SampledStatistic<T extends Number>

Returns:

the t

type

public StatisticType type()

Specified by:

type in interface SampledStatistic<T extends Number>