Package org.apache.hadoop.metrics2.lib

Class MutableGaugeFloat

java.lang.Object

org.apache.hadoop.metrics2.lib.MutableMetric

org.apache.hadoop.metrics2.lib.MutableGauge

org.apache.hadoop.metrics2.lib.MutableGaugeFloat

public class MutableGaugeFloat
extends MutableGauge

A mutable float gauge.

Method Summary

Modifier and Type	Method	Description
void	decr()	Decrement the value of the metric by 1
void	incr()	Increment the value of the metric by 1
void	set(float value)
void	snapshot(MetricsRecordBuilder builder, boolean all)	Get a snapshot of the metric
String	toString()
float	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, wait, wait, wait

Method Details

value

public float value()

incr

public void incr()

Description copied from class: MutableGauge

Increment the value of the metric by 1

Specified by:

incr in class MutableGauge

decr

public void decr()

Description copied from class: MutableGauge

Decrement the value of the metric by 1

Specified by:

decr in class MutableGauge

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

set

public void set(float value)

toString

public String toString()

Overrides:

toString in class Object

Returns:

the value of the metric