Package org.elasticsearch.search.aggregations.pipeline

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.

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>

Constructor Summary

Constructors

Constructor	Description
MovFnPipelineAggregator(StreamInput in)

Method Summary

Modifier and Type	Method	Description
protected void	doWriteTo(StreamOutput out)	Write the body of the aggregation to the wire.
String	getWriteableName()	The name of the writeable object.
InternalAggregation	reduce(InternalAggregation aggregation, InternalAggregation.ReduceContext reduceContext)

Methods inherited from class org.elasticsearch.search.aggregations.pipeline.PipelineAggregator

bucketsPaths, metadata, name, writeTo

Methods inherited from class java.lang.Object

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

Constructor Details

MovFnPipelineAggregator

public MovFnPipelineAggregator(StreamInput in)
                        throws IOException

Throws:

IOException

Method Details

doWriteTo

protected void doWriteTo(StreamOutput out)
                  throws IOException

Description copied from class: PipelineAggregator

Write the body of the aggregation to the wire.

Overrides:

doWriteTo in class PipelineAggregator

Throws:

IOException

getWriteableName

public String getWriteableName()

Description copied from class: PipelineAggregator

The name of the writeable object.

Specified by:

getWriteableName in interface NamedWriteable

Overrides:

getWriteableName in class PipelineAggregator

reduce

public InternalAggregation reduce(InternalAggregation aggregation,
 InternalAggregation.ReduceContext reduceContext)

Specified by:

reduce in class PipelineAggregator