org.apache.zookeeper.server.metric

Class SimpleCounterSet

java.lang.Object

org.apache.zookeeper.server.metric.Metric

org.apache.zookeeper.server.metric.SimpleCounterSet

All Implemented Interfaces:

CounterSet

public class SimpleCounterSet
extends Metric
implements CounterSet

Represent a set of counters identified by different keys. The counter is thread-safe

Constructor Summary

Constructors

Constructor and Description
SimpleCounterSet(String name)

Method Summary

Modifier and Type	Method and Description
void	add(String key, long delta) Increment the value by a given amount for the given key
void	reset()
Map<String,Object>	values()

Methods inherited from class org.apache.zookeeper.server.metric.Metric

add, add

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.zookeeper.metrics.CounterSet

inc

Constructor Detail

SimpleCounterSet

public SimpleCounterSet(String name)

Method Detail

add

public void add(String key,
                long delta)

Description copied from interface: CounterSet

Increment the value by a given amount for the given key

This method is thread safe, The MetricsProvider will take care of synchronization.

Specified by:

add in interface CounterSet

Overrides:

add in class Metric

Parameters:

key - the key to increment the count for the given key

delta - amount to increment, this cannot be a negative number.

reset

public void reset()

Overrides:

reset in class Metric

values

public Map<String,Object> values()

Specified by:

values in class Metric