org.apache.storm.metric.api

Class CombinedMetric

java.lang.Object

org.apache.storm.metric.api.CombinedMetric

All Implemented Interfaces:

IMetric

Direct Known Subclasses:

CombinedShellMetric

public class CombinedMetric
extends Object
implements IMetric

Constructor Summary

Constructors

Constructor and Description
CombinedMetric(ICombiner combiner)

Method Summary

Modifier and Type	Method and Description
Object	getValueAndReset()
void	update(Object value)

Methods inherited from class java.lang.Object

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

Constructor Detail

CombinedMetric

public CombinedMetric(ICombiner combiner)

Method Detail

update

public void update(Object value)

getValueAndReset

public Object getValueAndReset()

Specified by:

getValueAndReset in interface IMetric

Returns:

an object that will be sent 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.