org.apache.hadoop.hbase.metrics

Interface Histogram

All Superinterfaces:

Metric

All Known Implementing Classes:

HistogramImpl

@InterfaceAudience.LimitedPrivate(value="Coprocesssor")
 @InterfaceStability.Evolving
public interface Histogram
extends Metric

A metric which measures the distribution of values.

Method Summary

Modifier and Type	Method and Description
long	getCount() Return the total number of values added to the histogram.
Snapshot	snapshot() Snapshot the current values in the Histogram
void	update(int value) Adds a new value to the distribution.
void	update(long value) Adds a new value to the distribution.

Method Detail

update

void update(int value)

Adds a new value to the distribution.

Parameters:

value - The value to add

update

void update(long value)

Adds a new value to the distribution.

Parameters:

value - The value to add

getCount

long getCount()

Return the total number of values added to the histogram.

Returns:

the total number of values.

snapshot

@InterfaceAudience.Private
Snapshot snapshot()

Snapshot the current values in the Histogram

Returns:

a Snapshot of the distribution.