Class MovFnPipelineAggregator
java.lang.Object
org.elasticsearch.search.aggregations.pipeline.PipelineAggregator
org.elasticsearch.search.aggregations.pipeline.MovFnPipelineAggregator
- All Implemented Interfaces:
NamedWriteable
,Writeable
public class MovFnPipelineAggregator extends PipelineAggregator
This pipeline aggregation gives the user the ability to script functions that "move" across a window
of data, instead of single data points. It is the scripted version of MovingAvg pipeline agg.
Through custom script contexts, we expose a number of convenience methods:
- max
- min
- sum
- unweightedAvg
- linearWeightedAvg
- ewma
- holt
- holtWintersMovAvg
The user can also define any arbitrary logic via their own scripting, or combine with the above methods.
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Nested Class Summary
Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.pipeline.PipelineAggregator
PipelineAggregator.Parser, PipelineAggregator.PipelineTree
Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable
Writeable.Reader<V>, Writeable.Writer<V>
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Constructor Summary
Constructors Constructor Description MovFnPipelineAggregator(StreamInput in)
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Method Summary
Modifier and Type Method Description protected void
doWriteTo(StreamOutput out)
java.lang.String
getWriteableName()
Returns the name of the writeable objectInternalAggregation
reduce(InternalAggregation aggregation, InternalAggregation.ReduceContext reduceContext)
Methods inherited from class org.elasticsearch.search.aggregations.pipeline.PipelineAggregator
bucketsPaths, metaData, name, writeTo
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Constructor Details
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MovFnPipelineAggregator
- Throws:
java.io.IOException
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Method Details
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doWriteTo
- Specified by:
doWriteTo
in classPipelineAggregator
- Throws:
java.io.IOException
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getWriteableName
public java.lang.String getWriteableName()Description copied from interface:NamedWriteable
Returns the name of the writeable object -
reduce
public InternalAggregation reduce(InternalAggregation aggregation, InternalAggregation.ReduceContext reduceContext)- Specified by:
reduce
in classPipelineAggregator
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