org.apache.hadoop.metrics2.lib
Class MetricMutableCounterLong

java.lang.Object
  org.apache.hadoop.metrics2.lib.MetricMutable
      org.apache.hadoop.metrics2.lib.MetricMutableCounter<Long>
          org.apache.hadoop.metrics2.lib.MetricMutableCounterLong

public class MetricMutableCounterLong
extends MetricMutableCounter<Long>

A mutable long counter

Field Summary

Fields inherited from class org.apache.hadoop.metrics2.lib.MetricMutable

description, name

Constructor Summary

MetricMutableCounterLong(String name, String description, long initValue)
Construct a mutable long counter

Method Summary

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/snapshot of the metric

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

changed, clearChanged, setChanged, snapshot

Methods inherited from class java.lang.Object

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

Constructor Detail

MetricMutableCounterLong

public MetricMutableCounterLong(String name,
                                String description,
                                long initValue)

Construct a mutable long counter

Parameters:

name - of the counter

description - of the counter

initValue - the initial value of the counter

Method Detail

incr

public void incr()

Description copied from class: MetricMutableCounter

Increment the metric value by 1.

Specified by:

incr in class MetricMutableCounter<Long>

incr

public void incr(long delta)

Increment the value by a delta

Parameters:

delta - of the increment

snapshot

public void snapshot(MetricsRecordBuilder builder,
                     boolean all)

Description copied from class: MetricMutable

Get a snapshot/snapshot of the metric

Specified by:

snapshot in class MetricMutable

Parameters:

builder - the metrics record builder

all - if true, snapshot unchanged metrics as well