Package org.apache.lucene.search
Class KnnVectorQuery.BitSetCollector
- java.lang.Object
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- org.apache.lucene.search.SimpleCollector
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- org.apache.lucene.search.KnnVectorQuery.BitSetCollector
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- All Implemented Interfaces:
Collector
,LeafCollector
- Enclosing class:
- KnnVectorQuery
private static class KnnVectorQuery.BitSetCollector extends SimpleCollector
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Constructor Summary
Constructors Modifier Constructor Description private
BitSetCollector(int numLeaves)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
collect(int doc)
Called once for every document matching a query, with the unbased document number.protected void
doSetNextReader(LeafReaderContext context)
This method is called before collectingcontext
.BitSetIterator
getIterator(int contextOrd)
Return an iterator whoseBitSet
contains the matching documents, and whoseBitSetIterator.cost()
is the exact cardinality.ScoreMode
scoreMode()
Indicates what features are required from the scorer.-
Methods inherited from class org.apache.lucene.search.SimpleCollector
getLeafCollector, setScorer
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.lucene.search.LeafCollector
competitiveIterator
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Field Detail
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bitSets
private final BitSet[] bitSets
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cost
private final int[] cost
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ord
private int ord
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Method Detail
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getIterator
public BitSetIterator getIterator(int contextOrd)
Return an iterator whoseBitSet
contains the matching documents, and whoseBitSetIterator.cost()
is the exact cardinality. If the leaf was never visited, then return null.
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collect
public void collect(int doc) throws java.io.IOException
Description copied from interface:LeafCollector
Called once for every document matching a query, with the unbased document number.Note: The collection of the current segment can be terminated by throwing a
CollectionTerminatedException
. In this case, the last docs of the currentLeafReaderContext
will be skipped andIndexSearcher
will swallow the exception and continue collection with the next leaf.Note: This is called in an inner search loop. For good search performance, implementations of this method should not call
IndexSearcher.doc(int)
orIndexReader.document(int)
on every hit. Doing so can slow searches by an order of magnitude or more.- Specified by:
collect
in interfaceLeafCollector
- Specified by:
collect
in classSimpleCollector
- Throws:
java.io.IOException
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doSetNextReader
protected void doSetNextReader(LeafReaderContext context) throws java.io.IOException
Description copied from class:SimpleCollector
This method is called before collectingcontext
.- Overrides:
doSetNextReader
in classSimpleCollector
- Throws:
java.io.IOException
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