org.elasticsearch.search.aggregations.bucket.adjacency

Class AdjacencyMatrixAggregator

java.lang.Object

org.elasticsearch.search.aggregations.BucketCollector

org.elasticsearch.search.aggregations.Aggregator

org.elasticsearch.search.aggregations.AggregatorBase

org.elasticsearch.search.aggregations.bucket.BucketsAggregator

org.elasticsearch.search.aggregations.bucket.adjacency.AdjacencyMatrixAggregator

All Implemented Interfaces:

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

public class AdjacencyMatrixAggregator
extends BucketsAggregator

Aggregation for adjacency matrices. NOTE! This is an experimental class. TODO the aggregation produces a sparse response but in the computation it uses a non-sparse structure (an array of Bits objects). This could be changed to a sparse structure in future.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	AdjacencyMatrixAggregator.KeyedFilter

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

Aggregator.Parser, Aggregator.SubAggCollectionMode

Field Summary

Fields

Modifier and Type	Field and Description
static ParseField	FILTERS_FIELD

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

Constructor and Description
AdjacencyMatrixAggregator(java.lang.String name, AggregatorFactories factories, java.lang.String separator, java.lang.String[] keys, org.apache.lucene.search.Weight[] filters, SearchContext context, Aggregator parent, 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 owningBucketOrdinal) Build an aggregation for data that has been collected into bucket.
InternalAggregation	buildEmptyAggregation() Build an empty aggregation.
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.bucket.BucketsAggregator

bucketAggregations, bucketDocCount, bucketEmptyAggregations, close, collectBucket, collectExistingBucket, getDocCounts, grow, incrementBucketDocCount, maxBucketOrd

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

buildEmptySubAggregations, context, doClose, 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

Field Detail

FILTERS_FIELD

public static final ParseField FILTERS_FIELD

Constructor Detail

AdjacencyMatrixAggregator

public AdjacencyMatrixAggregator(java.lang.String name,
                                 AggregatorFactories factories,
                                 java.lang.String separator,
                                 java.lang.String[] keys,
                                 org.apache.lucene.search.Weight[] filters,
                                 SearchContext context,
                                 Aggregator parent,
                                 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 owningBucketOrdinal)
                                     throws java.io.IOException

Description copied from class: Aggregator

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

Specified by:

buildAggregation in class Aggregator

Throws:

java.io.IOException

buildEmptyAggregation

public InternalAggregation buildEmptyAggregation()

Description copied from class: Aggregator

Build an empty aggregation.

Specified by:

buildEmptyAggregation in class Aggregator