Class PayloadScoreQuery.PayloadSpanWeight
- 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.queries.payloads.PayloadScoreQuery.PayloadSpanWeight
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- All Implemented Interfaces:
SegmentCacheable
- Enclosing class:
- PayloadScoreQuery
private class PayloadScoreQuery.PayloadSpanWeight 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
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Field Summary
Fields Modifier and Type Field Description private SpanWeight
innerWeight
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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 PayloadSpanWeight(IndexSearcher searcher, SpanWeight innerWeight, float boost)
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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.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 ctx, SpanWeight.Postings requiredPostings)
Expert: Return a Spans object iterating over matches from this Weightboolean
isCacheable(LeafReaderContext ctx)
SpanScorer
scorer(LeafReaderContext context)
Returns aScorer
which can iterate in order over all matching documents and assign them a score.-
Methods inherited from class org.apache.lucene.search.spans.SpanWeight
getSimScorer, 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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innerWeight
private final SpanWeight innerWeight
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Constructor Detail
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PayloadSpanWeight
public PayloadSpanWeight(IndexSearcher searcher, SpanWeight innerWeight, float boost) throws java.io.IOException
- Throws:
java.io.IOException
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Method Detail
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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 ctx, 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:
ctx
- a LeafReaderContext for this Spans- Returns:
- a Spans
- Throws:
java.io.IOException
- on error
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scorer
public SpanScorer scorer(LeafReaderContext context) 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 classSpanWeight
- Parameters:
context
- 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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isCacheable
public boolean isCacheable(LeafReaderContext ctx)
- Returns:
true
if the object can be cached against a given leaf
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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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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 classSpanWeight
- 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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