Package org.apache.storm.metric.api
Class CombinedMetric
java.lang.Object
org.apache.storm.metric.api.CombinedMetric
- All Implemented Interfaces:
IMetric
- Direct Known Subclasses:
CombinedShellMetric
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionGet value and reset.void
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.storm.metric.api.IMetric
getDimensions
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Constructor Details
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CombinedMetric
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Method Details
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update
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getValueAndReset
Description copied from interface:IMetric
Get value and reset.- Specified by:
getValueAndReset
in interfaceIMetric
- Returns:
- an object that will be sent to
IMetricsConsumer.handleDataPoints(org.apache.storm.metric.api.IMetricsConsumer.TaskInfo, java.util.Collection)
. Ifnull
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.
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