Module org.elasticsearch.server

Package org.elasticsearch.search.aggregations.pipeline

Class MovFnPipelineAggregator

java.lang.Object

org.elasticsearch.search.aggregations.pipeline.PipelineAggregator

org.elasticsearch.search.aggregations.pipeline.MovFnPipelineAggregator

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

Method Summary

Modifier and Type	Method	Description
InternalAggregation	reduce(InternalAggregation aggregation, AggregationReduceContext reduceContext)

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

bucketsPaths, metadata, name

Methods inherited from class java.lang.Object

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

Method Details

reduce

public InternalAggregation reduce(InternalAggregation aggregation,
 AggregationReduceContext reduceContext)

Specified by:

reduce in class PipelineAggregator