org.apache.hadoop.metrics2.lib
Class MutableGaugeLong

java.lang.Object
  org.apache.hadoop.metrics2.lib.MutableMetric
      org.apache.hadoop.metrics2.lib.MutableGauge
          org.apache.hadoop.metrics2.lib.MutableGaugeLong

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class MutableGaugeLong
extends MutableGauge

A mutable long gauge

Method Summary

void	decr() Decrement the value of the metric by 1
void	decr(long delta) decrement by delta
void	incr() Increment the value of the metric by 1
void	incr(long delta) Increment by delta
void	set(long value) Set the value of the metric
void	snapshot(MetricsRecordBuilder builder, boolean all) Get a snapshot of the metric
long	value()

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

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

Method Detail

value

public long value()

incr

public void incr()

Description copied from class: MutableGauge

Increment the value of the metric by 1

Specified by:

incr in class MutableGauge

incr

public void incr(long delta)

Increment by delta

Parameters:

delta - of the increment

decr

public void decr()

Description copied from class: MutableGauge

Decrement the value of the metric by 1

Specified by:

decr in class MutableGauge

decr

public void decr(long delta)

decrement by delta

Parameters:

delta - of the decrement

set

public void set(long value)

Set the value of the metric

Parameters:

value - to set

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