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.Fields, InternalCentroid.ShapeData

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, shapeData

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, EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
InternalGeoCentroid(String name, SpatialPoint centroid, long count, Map<String,Object> metadata)
InternalGeoCentroid(String name, SpatialPoint centroid, long count, InternalCentroid.ShapeData shapeData, Map<String,Object> metadata)	Constructor for shape centroid results that carry raw weighted sums for correct cross-shard reduction.
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 by reducing from the sums and total count (count-weighted path for geo_point).
protected InternalGeoCentroid	copyWith(SpatialPoint result, long count)
protected InternalGeoCentroid	copyWithShapeFields(InternalCentroid.ShapeData shapeData, long count)	Create a new centroid from shape-aware weighted sums (area-weighted path for geo_shape).
static InternalGeoCentroid	empty(String name, Map<String,Object> metadata)
protected double	extractDouble(String name)
protected double	extractFirst(SpatialPoint point)
protected double	extractSecond(SpatialPoint point)
String	getWriteableName()	Returns the name of the writeable object
protected String	nameFirst()
protected String	nameSecond()

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

centroid, count, doWriteTo, doXContentBody, equals, finalizeSampling, getLeaderReducer, getProperty, hashCode, mustReduceOnSingleInternalAgg, toString

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

canLeadReduction, copyWithRewritenBuckets, forEachBucket, getMetadata, getName, getProperty, getReducer, 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(String name,
 SpatialPoint centroid,
 long count,
 InternalCentroid.ShapeData shapeData,
 Map<String,Object> metadata)

Constructor for shape centroid results that carry raw weighted sums for correct cross-shard reduction.

InternalGeoCentroid

public InternalGeoCentroid(StreamInput in)
                    throws IOException

Read from a stream.

Throws:

IOException

Method Details

empty

public static InternalGeoCentroid empty(String name,
 Map<String,Object> metadata)

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 by reducing from the sums and total count (count-weighted path for geo_point).

Specified by:

copyWith in class InternalCentroid

copyWithShapeFields

protected InternalGeoCentroid copyWithShapeFields(InternalCentroid.ShapeData shapeData,
 long count)

Description copied from class: InternalCentroid

Create a new centroid from shape-aware weighted sums (area-weighted path for geo_shape).

Specified by:

copyWithShapeFields in class InternalCentroid

nameFirst

protected String nameFirst()

Specified by:

nameFirst in class InternalCentroid

extractFirst

protected double extractFirst(SpatialPoint point)

Specified by:

extractFirst in class InternalCentroid

nameSecond

protected String nameSecond()

Specified by:

nameSecond in class InternalCentroid

extractSecond

protected double extractSecond(SpatialPoint point)

Specified by:

extractSecond in class InternalCentroid