org.apache.hadoop.metrics2.lib

Class MutableFastCounter

java.lang.Object

org.apache.hadoop.metrics2.lib.MutableMetric

org.apache.hadoop.metrics2.lib.MutableCounter

org.apache.hadoop.metrics2.lib.MutableFastCounter

@InterfaceAudience.Private
public class MutableFastCounter
extends org.apache.hadoop.metrics2.lib.MutableCounter

Field Summary

Fields

Modifier and Type	Field and Description
private LongAdder	counter

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MutableFastCounter(org.apache.hadoop.metrics2.MetricsInfo info, long iVal)

Method Summary

Modifier and Type	Method and Description
void	incr()
void	incr(long delta) Increment the value by a delta
void	snapshot(org.apache.hadoop.metrics2.MetricsRecordBuilder builder, boolean all)
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

Field Detail

counter

private final LongAdder counter

Constructor Detail

MutableFastCounter

protected MutableFastCounter(org.apache.hadoop.metrics2.MetricsInfo info,
                             long iVal)

Method Detail

incr

public void incr()

Specified by:

incr in class org.apache.hadoop.metrics2.lib.MutableCounter

incr

public void incr(long delta)

Increment the value by a delta

Parameters:

delta - of the increment

snapshot

public void snapshot(org.apache.hadoop.metrics2.MetricsRecordBuilder builder,
                     boolean all)

Specified by:

snapshot in class org.apache.hadoop.metrics2.lib.MutableMetric

value

public long value()