Top Description Fields Constructors Methods
net.sf.ehcache.statistics.extended

public Class RateImpl<T extends java.lang.Enum<T>>

extends Object
implements ExtendedStatistics.Statistic<Double>
Class Inheritance
All Implemented Interfaces
net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic
Type Parameters
<T>
the generic type
Imports
java.util.List, .Set, java.util.concurrent.ScheduledExecutorService, .TimeUnit, net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic, org.terracotta.statistics.SourceStatistic, org.terracotta.statistics.archive.Timestamped, org.terracotta.statistics.derived.EventRateSimpleMovingAverage, .OperationResultFilter, org.terracotta.statistics.observer.ChainedOperationObserver
The Class RateStatistic.
Author
cdennis

Field Summary

Modifier and TypeField and Description
private final ExpiringStatistic<Double>
delegate

private final EventRateSimpleMovingAverage
rate

The rate.

Constructor Summary

AccessConstructor and Description
public
RateImpl(final SourceStatistic<ChainedOperationObserver<T>> source, final Set<T>
the targets
targets, long
the average nanos
averageNanos, ScheduledExecutorService
the executor
executor, int
the history size
historySize, long
the history nanos
historyNanos)

Instantiates a new rate statistic.

Method Summary

Modifier and TypeMethod and Description
public boolean
active()

Implements net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.active.

Active.
protected boolean

Returns:

true if expired
expire(long
expiry threshold
expiry)

Check the statistic for expiry.

public List<Timestamped<Double>>
history()

Implements net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.history.

History.
protected void
setHistory(int
history sample size
historySize, long
history sample period
historyNanos)

Set the sample history parameters.

protected void
setWindow(long
the new window
averageNanos)

Sets the window.

protected void
start()

Start sampling.

public Double
value()

Implements net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.value.

Value.
Inherited from java.lang.Object:
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Field Detail

delegateback to summary
private final ExpiringStatistic<Double> delegate
rateback to summary
private final EventRateSimpleMovingAverage rate

The rate.

Constructor Detail

RateImplback to summary
public RateImpl(final SourceStatistic<ChainedOperationObserver<T>> source, final Set<T> targets, long averageNanos, ScheduledExecutorService executor, int historySize, long historyNanos)

Instantiates a new rate statistic.

Parameters
targets:Set<T>

the targets

averageNanos:long

the average nanos

executor:ScheduledExecutorService

the executor

historySize:int

the history size

historyNanos:long

the history nanos

Method Detail

activeback to summary
public boolean active()

Implements net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.active.

Doc from net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.active.

Active.

Returns:boolean

true, if successful

Annotations
@Override
expireback to summary
protected boolean expire(long expiry)

Check the statistic for expiry.

Parameters
expiry:long

expiry threshold

Returns:boolean

true if expired

historyback to summary
public List<Timestamped<Double>> history()

Implements net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.history.

Doc from net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.history.

History.

Returns:List<Timestamped<Double>>

the list

Annotations
@Override
setHistoryback to summary
protected void setHistory(int historySize, long historyNanos)

Set the sample history parameters.

Parameters
historySize:int

history sample size

historyNanos:long

history sample period

setWindowback to summary
protected void setWindow(long averageNanos)

Sets the window.

Parameters
averageNanos:long

the new window

startback to summary
protected void start()

Start sampling.

valueback to summary
public Double value()

Implements net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.value.

Doc from net.sf.ehcache.statistics.extended.ExtendedStatistics.Statistic.value.

Value.

Returns:Double

the t

Annotations
@Override