org.apache.hadoop.metrics2.lib
Class MetricMutableCounter<T extends Number>

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

Type Parameters:

T - the type of the metric

Direct Known Subclasses:

MetricMutableCounterInt, MetricMutableCounterLong

public abstract class MetricMutableCounter<T extends Number>
extends MetricMutable

The mutable counter (monotonically increasing) metric interface

Field Summary

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

description, name

Constructor Summary

MetricMutableCounter(String name, String description)
Construct the metric with name and description

Method Summary

abstract void

incr() Increment the metric value by 1.

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

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

MetricMutableCounter

public MetricMutableCounter(String name,
                            String description)

Construct the metric with name and description

Parameters:

name -

description -

Method Detail

incr

public abstract void incr()

Increment the metric value by 1.