Class NestedAggregator
- java.lang.Object
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- org.elasticsearch.search.aggregations.BucketCollector
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- org.elasticsearch.search.aggregations.Aggregator
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- org.elasticsearch.search.aggregations.AggregatorBase
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- org.elasticsearch.search.aggregations.bucket.BucketsAggregator
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- org.elasticsearch.search.aggregations.bucket.nested.NestedAggregator
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,org.apache.lucene.search.Collector
,Releasable
,SingleBucketAggregator
public class NestedAggregator extends BucketsAggregator implements SingleBucketAggregator
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Nested Class Summary
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Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.Aggregator
Aggregator.Parser, Aggregator.SubAggCollectionMode
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Field Summary
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Fields inherited from class org.elasticsearch.search.aggregations.AggregatorBase
collectableSubAggregators, context, DEFAULT_WEIGHT, name, parent, subAggregators
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Fields inherited from class org.elasticsearch.search.aggregations.BucketCollector
NO_OP_COLLECTOR
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description InternalAggregation
buildAggregation(long owningBucketOrdinal)
Build an aggregation for data that has been collected intobucket
.InternalAggregation
buildEmptyAggregation()
Build an empty aggregation.protected void
doPostCollection()
Can be overridden by aggregator implementation to be called back when the collection phase ends.LeafBucketCollector
getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx, LeafBucketCollector sub)
Get aLeafBucketCollector
for the given ctx, which should delegate to the given collector.protected void
preGetSubLeafCollectors()
Can be overridden by aggregator implementations that like the perform an operation before the leaf collectors of children aggregators are instantiated for the next segment.-
Methods inherited from class org.elasticsearch.search.aggregations.bucket.BucketsAggregator
bucketAggregations, bucketDocCount, bucketEmptyAggregations, close, collectBucket, collectExistingBucket, consumeBucketsAndMaybeBreak, getDocCounts, grow, incrementBucketDocCount, maxBucketOrd, mergeBuckets
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Methods inherited from class org.elasticsearch.search.aggregations.AggregatorBase
addRequestCircuitBreakerBytes, buildEmptySubAggregations, context, doClose, doPreCollection, getLeafCollector, metaData, name, parent, pipelineAggregators, postCollection, preCollection, scoreMode, subAggregator, subAggregators, toString
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Methods inherited from class org.elasticsearch.search.aggregations.Aggregator
descendsFromBucketAggregator
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.elasticsearch.search.aggregations.bucket.SingleBucketAggregator
bucketDocCount
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Method Detail
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getLeafCollector
public LeafBucketCollector getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx, LeafBucketCollector sub) throws java.io.IOException
Description 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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preGetSubLeafCollectors
protected void preGetSubLeafCollectors() throws java.io.IOException
Description copied from class:AggregatorBase
Can be overridden by aggregator implementations that like the perform an operation before the leaf collectors of children aggregators are instantiated for the next segment.- Overrides:
preGetSubLeafCollectors
in classAggregatorBase
- Throws:
java.io.IOException
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doPostCollection
protected void doPostCollection() throws java.io.IOException
Description copied from class:AggregatorBase
Can be overridden by aggregator implementation to be called back when the collection phase ends.- Overrides:
doPostCollection
in classAggregatorBase
- Throws:
java.io.IOException
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buildAggregation
public InternalAggregation buildAggregation(long owningBucketOrdinal) throws java.io.IOException
Description copied from class:Aggregator
Build an aggregation for data that has been collected intobucket
.- Specified by:
buildAggregation
in classAggregator
- Throws:
java.io.IOException
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buildEmptyAggregation
public InternalAggregation buildEmptyAggregation()
Description copied from class:Aggregator
Build an empty aggregation.- Specified by:
buildEmptyAggregation
in classAggregator
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