org.apache.hadoop.metrics2.lib
Class MutableGauge

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

Direct Known Subclasses:

MutableGaugeInt, MutableGaugeLong

@InterfaceAudience.Public
@InterfaceStability.Evolving
public abstract class MutableGauge
extends MutableMetric

The mutable gauge metric interface

Constructor Summary

protected

MutableGauge(MetricsInfo info)

Method Summary

abstract void	decr() Decrement the value of the metric by 1
abstract void	incr() Increment the value of the metric by 1
protected MetricsInfo	info()

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

changed, clearChanged, setChanged, snapshot, snapshot

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableGauge

protected MutableGauge(MetricsInfo info)

Method Detail

info

protected MetricsInfo info()

incr

public abstract void incr()

Increment the value of the metric by 1

decr

public abstract void decr()

Decrement the value of the metric by 1