Class VariableWidthHistogramAggregator
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.DeferableBucketAggregator
org.elasticsearch.search.aggregations.bucket.histogram.VariableWidthHistogramAggregator
- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,org.apache.lucene.search.Collector
,Releasable
public class VariableWidthHistogramAggregator extends DeferableBucketAggregator
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Nested Class Summary
Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.bucket.BucketsAggregator
BucketsAggregator.BucketBuilderForFixedCount<B>, BucketsAggregator.BucketBuilderForVariable<B>, BucketsAggregator.ResultBuilderForVariable<B>, BucketsAggregator.SingleBucketResultBuilder
Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.Aggregator
Aggregator.BucketComparator, Aggregator.Parser, Aggregator.SubAggCollectionMode
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Field Summary
Fields inherited from class org.elasticsearch.search.aggregations.AggregatorBase
collectableSubAggregators, context, DEFAULT_WEIGHT, name, parent, subAggregators
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Method Summary
Modifier and Type Method Description InternalAggregation[]
buildAggregations(long[] owningBucketOrds)
Build the results of this aggregation.InternalAggregation
buildEmptyAggregation()
Build an empty aggregation.void
doClose()
Release instance-specific data.DeferringBucketCollector
getDeferringCollector()
protected LeafBucketCollector
getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx, LeafBucketCollector sub)
Get aLeafBucketCollector
for the given ctx, which should delegate to the given collector.static int
mergePhaseInitialBucketCount(int shardSize)
org.apache.lucene.search.ScoreMode
scoreMode()
Most aggregators don't need scores, make sure to extend this method if your aggregator needs them.protected boolean
shouldDefer(Aggregator aggregator)
This method should be overridden by subclasses that want to defer calculation of a child aggregation until a first pass is complete and a set of buckets has been pruned.Methods inherited from class org.elasticsearch.search.aggregations.bucket.DeferableBucketAggregator
beforeBuildingBuckets, collectDebugInfo, doPreCollection
Methods inherited from class org.elasticsearch.search.aggregations.bucket.BucketsAggregator
bucketComparator, bucketDocCount, buildAggregationsForFixedBucketCount, buildAggregationsForSingleBucket, buildAggregationsForVariableBuckets, buildSubAggsForAllBuckets, buildSubAggsForBuckets, buildSubAggsForBuckets, close, collectBucket, collectExistingBucket, descendsFromGlobalAggregator, getDocCounts, grow, incrementBucketDocCount, maxBucketOrd, mergeBuckets, resolveSortPath
Methods inherited from class org.elasticsearch.search.aggregations.AggregatorBase
addRequestCircuitBreakerBytes, buildEmptySubAggregations, context, doPostCollection, getLeafCollector, metadata, name, parent, pointReaderIfAvailable, postCollection, preCollection, preGetSubLeafCollectors, subAggregator, subAggregators, toString
Methods inherited from class org.elasticsearch.search.aggregations.Aggregator
buildTopLevel, resolveSortPathOnValidAgg
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Method Details
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scoreMode
public org.apache.lucene.search.ScoreMode scoreMode()Description copied from class:AggregatorBase
Most aggregators don't need scores, make sure to extend this method if your aggregator needs them.- Specified by:
scoreMode
in interfaceorg.apache.lucene.search.Collector
- Overrides:
scoreMode
in classAggregatorBase
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shouldDefer
Description copied from class:DeferableBucketAggregator
This method should be overridden by subclasses that want to defer calculation of a child aggregation until a first pass is complete and a set of buckets has been pruned.- Overrides:
shouldDefer
in classDeferableBucketAggregator
- Parameters:
aggregator
- the child aggregator- Returns:
- true if the aggregator should be deferred until a first pass at collection has completed
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getDeferringCollector
- Overrides:
getDeferringCollector
in classDeferableBucketAggregator
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getLeafCollector
protected LeafBucketCollector getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx, LeafBucketCollector sub) throws java.io.IOExceptionDescription copied from class:AggregatorBase
Get aLeafBucketCollector
for the given ctx, which should delegate to the given collector.- Specified by:
getLeafCollector
in classAggregatorBase
- Throws:
java.io.IOException
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buildAggregations
Description copied from class:Aggregator
Build the results of this aggregation.- Specified by:
buildAggregations
in classAggregator
- Parameters:
owningBucketOrds
- the ordinals of the buckets that we want to collect from this aggregation- Returns:
- the results for each ordinal, in the same order as the array of ordinals
- Throws:
java.io.IOException
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buildEmptyAggregation
Description copied from class:Aggregator
Build an empty aggregation.- Specified by:
buildEmptyAggregation
in classAggregator
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doClose
public void doClose()Description copied from class:AggregatorBase
Release instance-specific data.- Overrides:
doClose
in classAggregatorBase
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mergePhaseInitialBucketCount
public static int mergePhaseInitialBucketCount(int shardSize)
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