com.codahale.metrics

Class Histogram

java.lang.Object

com.codahale.metrics.Histogram

All Implemented Interfaces:

Counting, Metric, Sampling

public class Histogram
extends Object
implements Metric, Sampling, Counting

A metric which calculates the distribution of a value.

See Also:

Accurately computing running variance

Constructor Summary

Constructors

Constructor and Description
Histogram(Reservoir reservoir) Creates a new Histogram with the given reservoir.

Method Summary

Modifier and Type	Method and Description
long	getCount() Returns the number of values recorded.
Snapshot	getSnapshot() Returns a snapshot of the values.
void	update(int value) Adds a recorded value.
void	update(long value) Adds a recorded value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Histogram

public Histogram(Reservoir reservoir)

Creates a new Histogram with the given reservoir.

Parameters:

reservoir - the reservoir to create a histogram from

Method Detail

update

public void update(int value)

Adds a recorded value.

Parameters:

value - the length of the value

update

public void update(long value)

Adds a recorded value.

Parameters:

value - the length of the value

getCount

public long getCount()

Returns the number of values recorded.

Specified by:

getCount in interface Counting

Returns:

the number of values recorded

getSnapshot

public Snapshot getSnapshot()

Description copied from interface: Sampling

Returns a snapshot of the values.

Specified by:

getSnapshot in interface Sampling

Returns:

a snapshot of the values