Package org.apache.lucene.search.join
Class ToChildBlockJoinQuery.ToChildBlockJoinWeight
- java.lang.Object
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- org.apache.lucene.search.Weight
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- org.apache.lucene.search.FilterWeight
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- org.apache.lucene.search.join.ToChildBlockJoinQuery.ToChildBlockJoinWeight
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- All Implemented Interfaces:
SegmentCacheable
- Enclosing class:
- ToChildBlockJoinQuery
private static class ToChildBlockJoinQuery.ToChildBlockJoinWeight extends FilterWeight
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.search.Weight
Weight.DefaultBulkScorer, Weight.StartDISIWrapper
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Field Summary
Fields Modifier and Type Field Description private boolean
doScores
private BitSetProducer
parentsFilter
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Fields inherited from class org.apache.lucene.search.FilterWeight
in
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Fields inherited from class org.apache.lucene.search.Weight
parentQuery
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Constructor Summary
Constructors Constructor Description ToChildBlockJoinWeight(Query joinQuery, Weight parentWeight, BitSetProducer parentsFilter, boolean doScores)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Explanation
explain(LeafReaderContext context, int doc)
An explanation of the score computation for the named document.Scorer
scorer(LeafReaderContext readerContext)
Returns aScorer
which can iterate in order over all matching documents and assign them a score.-
Methods inherited from class org.apache.lucene.search.FilterWeight
extractTerms, isCacheable, matches
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Methods inherited from class org.apache.lucene.search.Weight
bulkScorer, getQuery, scorerSupplier
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Field Detail
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parentsFilter
private final BitSetProducer parentsFilter
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doScores
private final boolean doScores
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Constructor Detail
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ToChildBlockJoinWeight
public ToChildBlockJoinWeight(Query joinQuery, Weight parentWeight, BitSetProducer parentsFilter, boolean doScores)
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Method Detail
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scorer
public Scorer scorer(LeafReaderContext readerContext) throws java.io.IOException
Description copied from class:Weight
Returns aScorer
which can iterate in order over all matching documents and assign them a score.NOTE: null can be returned if no documents will be scored by this query.
NOTE: The returned
Scorer
does not haveLeafReader.getLiveDocs()
applied, they need to be checked on top.- Overrides:
scorer
in classFilterWeight
- Parameters:
readerContext
- theLeafReaderContext
for which to return theScorer
.- Returns:
- a
Scorer
which scores documents in/out-of order. - Throws:
java.io.IOException
- if there is a low-level I/O error
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explain
public Explanation explain(LeafReaderContext context, int doc) throws java.io.IOException
Description copied from class:Weight
An explanation of the score computation for the named document.- Overrides:
explain
in classFilterWeight
- Parameters:
context
- the readers context to create theExplanation
for.doc
- the document's id relative to the given context's reader- Returns:
- an Explanation for the score
- Throws:
java.io.IOException
- if anIOException
occurs
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