Package org.apache.storm.metric.api

Class MultiCountMetric

java.lang.Object

org.apache.storm.metric.api.MultiCountMetric

All Implemented Interfaces:

IMetric

public class MultiCountMetric
extends Object
implements IMetric

Constructor Summary

Constructors

Constructor	Description
MultiCountMetric()

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	getValueAndReset()	Get value and reset.
CountMetric	scope(String key)

Methods inherited from class java.lang.Object

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

Constructor Details

MultiCountMetric

public MultiCountMetric()

Method Details

scope

public CountMetric scope(String key)

getValueAndReset

public Map<String,Object> getValueAndReset()

Description copied from interface: IMetric

Get value and reset.

Specified by:

getValueAndReset in interface IMetric

Returns:

an object that will be sent to IMetricsConsumer.handleDataPoints(org.apache.storm.metric.api.IMetricsConsumer.TaskInfo,java.util.Collection). If null is returned nothing will be sent. If this value can be reset, like with a counter, a side effect of calling this should be that the value is reset.