org.apache.hadoop.metrics2.lib

Class MutableCounterLong

java.lang.Object

org.apache.hadoop.metrics2.lib.MutableMetric

org.apache.hadoop.metrics2.lib.MutableCounter

org.apache.hadoop.metrics2.lib.MutableCounterLong

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class MutableCounterLong
extends MutableCounter

A mutable long counter

Constructor Summary

Constructors

Constructor and Description
MutableCounterLong(MetricsInfo info, long initValue)

Method Summary

Methods

Modifier and Type	Method and Description
void	incr() Increment the metric value by 1.
void	incr(long delta) Increment the value by a delta
void	snapshot(MetricsRecordBuilder builder, boolean all) Get a snapshot of the metric
long	value()

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableCounter

info

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableMetric

changed, clearChanged, setChanged, snapshot

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableCounterLong

public MutableCounterLong(MetricsInfo info,
                  long initValue)

Method Detail

incr

public void incr()

Description copied from class: MutableCounter

Increment the metric value by 1.

Specified by:

incr in class MutableCounter

incr

public void incr(long delta)

Increment the value by a delta

Parameters:

delta - of the increment

value

public long value()

snapshot

public void snapshot(MetricsRecordBuilder builder,
            boolean all)

Description copied from class: MutableMetric

Get a snapshot of the metric

Specified by:

snapshot in class MutableMetric

Parameters:

builder - the metrics record builder

all - if true, snapshot unchanged metrics as well