org.elasticsearch.search.aggregations.metrics.geocentroid

Class GeoCentroidAggregator

java.lang.Object

org.elasticsearch.search.aggregations.BucketCollector

org.elasticsearch.search.aggregations.Aggregator

org.elasticsearch.search.aggregations.AggregatorBase

org.elasticsearch.search.aggregations.metrics.MetricsAggregator

org.elasticsearch.search.aggregations.metrics.geocentroid.GeoCentroidAggregator

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.lucene.search.Collector, Releasable

public final class GeoCentroidAggregator
extends MetricsAggregator

A geo metric aggregator that computes a geo-centroid from a geo_point type field

Nested Class Summary

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

Aggregator.Parser, Aggregator.SubAggCollectionMode

Field Summary

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

collectableSubAggregators, context, DEFAULT_WEIGHT, name, parent, subAggregators

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

NO_OP_COLLECTOR

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GeoCentroidAggregator(java.lang.String name, SearchContext context, Aggregator parent, ValuesSource.GeoPoint valuesSource, java.util.List<PipelineAggregator> pipelineAggregators, java.util.Map<java.lang.String,java.lang.Object> metaData)

Method Summary

Modifier and Type	Method and Description
InternalAggregation	buildAggregation(long bucket) Build an aggregation for data that has been collected into bucket.
InternalAggregation	buildEmptyAggregation() Build an empty aggregation.
void	doClose() Release instance-specific data.
LeafBucketCollector	getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx, LeafBucketCollector sub) Get a LeafBucketCollector for the given ctx, which should delegate to the given collector.

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

buildEmptySubAggregations, close, context, doPostCollection, doPreCollection, getDeferringCollector, getLeafCollector, metaData, name, needsScores, parent, pipelineAggregators, postCollection, preCollection, runDeferredCollections, shouldDefer, subAggregator, subAggregators, toString

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

descendsFromBucketAggregator

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

wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

GeoCentroidAggregator

protected GeoCentroidAggregator(java.lang.String name,
                                SearchContext context,
                                Aggregator parent,
                                ValuesSource.GeoPoint valuesSource,
                                java.util.List<PipelineAggregator> pipelineAggregators,
                                java.util.Map<java.lang.String,java.lang.Object> metaData)
                         throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getLeafCollector

public LeafBucketCollector getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx,
                                            LeafBucketCollector sub)
                                     throws java.io.IOException

Description copied from class: AggregatorBase

Get a LeafBucketCollector for the given ctx, which should delegate to the given collector.

Specified by:

getLeafCollector in class AggregatorBase

Throws:

java.io.IOException

buildAggregation

public InternalAggregation buildAggregation(long bucket)

Description copied from class: Aggregator

Build an aggregation for data that has been collected into bucket.

Specified by:

buildAggregation in class Aggregator

buildEmptyAggregation

public InternalAggregation buildEmptyAggregation()

Description copied from class: Aggregator

Build an empty aggregation.

Specified by:

buildEmptyAggregation in class Aggregator

doClose

public void doClose()

Description copied from class: AggregatorBase

Release instance-specific data.

Overrides:

doClose in class AggregatorBase