Package org.apache.heron.api.metric
Class MeanReducer
- java.lang.Object
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- org.apache.heron.api.metric.MeanReducer
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- All Implemented Interfaces:
IReducer<MeanReducerState,Number,Double>
public class MeanReducer extends Object implements IReducer<MeanReducerState,Number,Double>
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Constructor Summary
Constructors Constructor Description MeanReducer()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Double
extractResult(MeanReducerState acc)
MeanReducerState
init()
MeanReducerState
reduce(MeanReducerState acc, Number input)
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Method Detail
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init
public MeanReducerState init()
- Specified by:
init
in interfaceIReducer<MeanReducerState,Number,Double>
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reduce
public MeanReducerState reduce(MeanReducerState acc, Number input)
- Specified by:
reduce
in interfaceIReducer<MeanReducerState,Number,Double>
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extractResult
public Double extractResult(MeanReducerState acc)
- Specified by:
extractResult
in interfaceIReducer<MeanReducerState,Number,Double>
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