Package org.apache.lucene.search.spans
Class SpanTermQuery.SpanTermWeight
- java.lang.Object
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- org.apache.lucene.search.Weight
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- org.apache.lucene.search.spans.SpanWeight
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- org.apache.lucene.search.spans.SpanTermQuery.SpanTermWeight
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- All Implemented Interfaces:
SegmentCacheable
- Enclosing class:
- SpanTermQuery
public class SpanTermQuery.SpanTermWeight extends SpanWeight
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.search.spans.SpanWeight
SpanWeight.Postings
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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 (package private) TermStates
termStates
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Fields inherited from class org.apache.lucene.search.spans.SpanWeight
field, similarity, simScorer
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Fields inherited from class org.apache.lucene.search.Weight
parentQuery
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Constructor Summary
Constructors Constructor Description SpanTermWeight(TermStates termStates, IndexSearcher searcher, java.util.Map<Term,TermStates> terms, float boost)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
extractTerms(java.util.Set<Term> terms)
Expert: adds all terms occurring in this query to the terms set.void
extractTermStates(java.util.Map<Term,TermStates> contexts)
Collect all TermStates used by this WeightSpans
getSpans(LeafReaderContext context, SpanWeight.Postings requiredPostings)
Expert: Return a Spans object iterating over matches from this Weightboolean
isCacheable(LeafReaderContext ctx)
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Methods inherited from class org.apache.lucene.search.spans.SpanWeight
explain, getSimScorer, matches, scorer
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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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termStates
final TermStates termStates
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Constructor Detail
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SpanTermWeight
public SpanTermWeight(TermStates termStates, IndexSearcher searcher, java.util.Map<Term,TermStates> terms, float boost) throws java.io.IOException
- Throws:
java.io.IOException
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Method Detail
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extractTerms
public void extractTerms(java.util.Set<Term> terms)
Description copied from class:Weight
Expert: adds all terms occurring in this query to the terms set. If theWeight
was created withneedsScores == true
then this method will only extract terms which are used for scoring, otherwise it will extract all terms which are used for matching.- Specified by:
extractTerms
in classWeight
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isCacheable
public boolean isCacheable(LeafReaderContext ctx)
- Returns:
true
if the object can be cached against a given leaf
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extractTermStates
public void extractTermStates(java.util.Map<Term,TermStates> contexts)
Description copied from class:SpanWeight
Collect all TermStates used by this Weight- Specified by:
extractTermStates
in classSpanWeight
- Parameters:
contexts
- a map to add the TermStates to
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getSpans
public Spans getSpans(LeafReaderContext context, SpanWeight.Postings requiredPostings) throws java.io.IOException
Description copied from class:SpanWeight
Expert: Return a Spans object iterating over matches from this Weight- Specified by:
getSpans
in classSpanWeight
- Parameters:
context
- a LeafReaderContext for this Spans- Returns:
- a Spans
- Throws:
java.io.IOException
- on error
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