Module org.elasticsearch.server

Package org.elasticsearch.search.aggregations.metrics

Class InternalGeoCentroid

java.lang.Object

org.elasticsearch.search.aggregations.InternalAggregation

org.elasticsearch.search.aggregations.metrics.InternalCentroid

org.elasticsearch.search.aggregations.metrics.InternalGeoCentroid

All Implemented Interfaces:

NamedWriteable, Writeable, Aggregation, CentroidAggregation, GeoCentroid, ToXContent, ToXContentFragment

public class InternalGeoCentroid
extends InternalCentroid
implements GeoCentroid

Serialization and merge logic for GeoCentroidAggregator.

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.metrics.InternalCentroid

InternalCentroid.FieldExtractor

Nested classes/interfaces inherited from interface org.elasticsearch.search.aggregations.Aggregation

Aggregation.CommonFields

Nested classes/interfaces inherited from interface org.elasticsearch.xcontent.ToXContent

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields inherited from class org.elasticsearch.search.aggregations.metrics.InternalCentroid

centroid, count

Fields inherited from class org.elasticsearch.search.aggregations.InternalAggregation

metadata, name

Fields inherited from interface org.elasticsearch.search.aggregations.Aggregation

TYPED_KEYS_DELIMITER

Fields inherited from interface org.elasticsearch.xcontent.ToXContent

EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
InternalGeoCentroid(String name, SpatialPoint centroid, long count, Map<String,Object> metadata)
InternalGeoCentroid(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
protected GeoPoint	centroidFromStream(StreamInput in)
protected void	centroidToStream(StreamOutput out)
protected InternalGeoCentroid	copyWith(double firstSum, double secondSum, long totalCount)	Create a new centroid with by reducing from the sums and total count
protected InternalGeoCentroid	copyWith(SpatialPoint result, long count)
protected double	extractDouble(String name)
InternalAggregation	finalizeSampling(SamplingContext samplingContext)	Called by the parent sampling context.
String	getWriteableName()	Returns the name of the writeable object

Methods inherited from class org.elasticsearch.search.aggregations.metrics.InternalCentroid

centroid, count, doWriteTo, doXContentBody, equals, getProperty, hashCode, mustReduceOnSingleInternalAgg, reduce, toString

Methods inherited from class org.elasticsearch.search.aggregations.InternalAggregation

canLeadReduction, copyWithRewritenBuckets, forEachBucket, getMetadata, getName, getProperty, getType, readSize, reducePipelines, sortValue, sortValue, toXContent, writeSize, writeTo

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.elasticsearch.search.aggregations.Aggregation

getMetadata, getName, getType

Methods inherited from interface org.elasticsearch.search.aggregations.metrics.CentroidAggregation

centroid, count

Methods inherited from interface org.elasticsearch.xcontent.ToXContent

toXContent

Methods inherited from interface org.elasticsearch.xcontent.ToXContentFragment

isFragment

Constructor Details

InternalGeoCentroid

public InternalGeoCentroid(String name,
 SpatialPoint centroid,
 long count,
 Map<String,Object> metadata)

InternalGeoCentroid

public InternalGeoCentroid(StreamInput in)
                    throws IOException

Read from a stream.

Throws:

IOException

Method Details

centroidFromStream

protected GeoPoint centroidFromStream(StreamInput in)
                               throws IOException

Specified by:

centroidFromStream in class InternalCentroid

Throws:

IOException

centroidToStream

protected void centroidToStream(StreamOutput out)
                         throws IOException

Specified by:

centroidToStream in class InternalCentroid

Throws:

IOException

getWriteableName

public String getWriteableName()

Description copied from interface: NamedWriteable

Returns the name of the writeable object

Specified by:

getWriteableName in interface NamedWriteable

extractDouble

protected double extractDouble(String name)

Specified by:

extractDouble in class InternalCentroid

copyWith

protected InternalGeoCentroid copyWith(SpatialPoint result,
 long count)

Specified by:

copyWith in class InternalCentroid

copyWith

protected InternalGeoCentroid copyWith(double firstSum,
 double secondSum,
 long totalCount)

Description copied from class: InternalCentroid

Create a new centroid with by reducing from the sums and total count

Specified by:

copyWith in class InternalCentroid

finalizeSampling

public InternalAggregation finalizeSampling(SamplingContext samplingContext)

Description copied from class: InternalAggregation

Called by the parent sampling context. Should only ever be called once as some aggregations scale their internal values

Overrides:

finalizeSampling in class InternalCentroid

Parameters:

samplingContext - the current sampling context

Returns:

new aggregation with the sampling context applied, could be the same aggregation instance if nothing needs to be done