org.mpierce.metrics.reservoir.hdrhistogram

Class HdrHistogramResetOnSnapshotReservoir

java.lang.Object

org.mpierce.metrics.reservoir.hdrhistogram.HdrHistogramResetOnSnapshotReservoir

All Implemented Interfaces:

com.codahale.metrics.Reservoir

@ThreadSafe
public final class HdrHistogramResetOnSnapshotReservoir
extends java.lang.Object
implements com.codahale.metrics.Reservoir

A Reservoir that resets its internal state every time a snapshot is taken. This is useful if you're using snapshots as a means of defining the window in which you want to calculate, say, the 99.9th percentile.

Constructor Summary

Constructors

Constructor and Description
HdrHistogramResetOnSnapshotReservoir() Create a reservoir with a default recorder.
HdrHistogramResetOnSnapshotReservoir(org.HdrHistogram.Recorder recorder) Create a reservoir with a user-specified recorder.

Method Summary

Modifier and Type	Method and Description
com.codahale.metrics.Snapshot	getSnapshot()
int	size()
void	update(long value)

Methods inherited from class java.lang.Object

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

Constructor Detail

HdrHistogramResetOnSnapshotReservoir

public HdrHistogramResetOnSnapshotReservoir()

Create a reservoir with a default recorder. This recorder should be suitable for most usage.

HdrHistogramResetOnSnapshotReservoir

public HdrHistogramResetOnSnapshotReservoir(org.HdrHistogram.Recorder recorder)

Create a reservoir with a user-specified recorder.

Parameters:

recorder - Recorder to use

Method Detail

size

public int size()

Specified by:

size in interface com.codahale.metrics.Reservoir

update

public void update(long value)

Specified by:

update in interface com.codahale.metrics.Reservoir

getSnapshot

public com.codahale.metrics.Snapshot getSnapshot()

Specified by:

getSnapshot in interface com.codahale.metrics.Reservoir

Returns:

the data since the last snapshot was taken