Class BucketCollector
java.lang.Object
org.elasticsearch.search.aggregations.BucketCollector
- All Implemented Interfaces:
org.apache.lucene.search.Collector
- Direct Known Subclasses:
Aggregator
,DeferringBucketCollector
,MultiBucketCollector
public abstract class BucketCollector
extends java.lang.Object
implements org.apache.lucene.search.Collector
A Collector that can collect data in separate buckets.
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Field Summary
Fields Modifier and Type Field Description static BucketCollector
NO_OP_COLLECTOR
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Constructor Summary
Constructors Constructor Description BucketCollector()
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Method Summary
Modifier and Type Method Description abstract LeafBucketCollector
getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx)
abstract void
postCollection()
Post-collection callback.abstract void
preCollection()
Pre collection callback.
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Field Details
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Constructor Details
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BucketCollector
public BucketCollector()
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Method Details
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getLeafCollector
public abstract LeafBucketCollector getLeafCollector(org.apache.lucene.index.LeafReaderContext ctx) throws java.io.IOException- Specified by:
getLeafCollector
in interfaceorg.apache.lucene.search.Collector
- Throws:
java.io.IOException
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preCollection
public abstract void preCollection() throws java.io.IOExceptionPre collection callback.- Throws:
java.io.IOException
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postCollection
public abstract void postCollection() throws java.io.IOExceptionPost-collection callback.- Throws:
java.io.IOException
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