Package org.apache.lucene.search
Class DisjunctionMaxQuery.DisjunctionMaxWeight
java.lang.Object
org.apache.lucene.search.Weight
org.apache.lucene.search.DisjunctionMaxQuery.DisjunctionMaxWeight
- All Implemented Interfaces:
SegmentCacheable
- Enclosing class:
DisjunctionMaxQuery
Expert: the Weight for DisjunctionMaxQuery, used to normalize, score and explain these queries.
NOTE: this API and implementation is subject to change suddenly in the next release.
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.search.Weight
Weight.DefaultBulkScorer, Weight.DefaultScorerSupplier -
Field Summary
FieldsModifier and TypeFieldDescriptionThe Weights for our subqueries, in 1-1 correspondence with disjunctsFields inherited from class org.apache.lucene.search.Weight
parentQuery -
Constructor Summary
ConstructorsConstructorDescriptionDisjunctionMaxWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) Construct the Weight for this Query searched by searcher. -
Method Summary
Modifier and TypeMethodDescriptionexplain(LeafReaderContext context, int doc) Explain the score we computed for docbooleanmatches(LeafReaderContext context, int doc) ReturnsMatchesfor a specific document, ornullif the document does not match the parent queryscorerSupplier(LeafReaderContext context) Get aScorerSupplier, which allows knowing the cost of theScorerbefore building it.Methods inherited from class org.apache.lucene.search.Weight
bulkScorer, count, getQuery, scorer
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Field Details
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weights
The Weights for our subqueries, in 1-1 correspondence with disjuncts
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Constructor Details
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DisjunctionMaxWeight
public DisjunctionMaxWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) throws IOException Construct the Weight for this Query searched by searcher. Recursively construct subquery weights.- Throws:
IOException
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Method Details
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matches
Description copied from class:WeightReturnsMatchesfor a specific document, ornullif the document does not match the parent queryA query match that contains no position information (for example, a Point or DocValues query) will return
MatchesUtils.MATCH_WITH_NO_TERMS- Overrides:
matchesin classWeight- Parameters:
context- the reader's context to create theMatchesfordoc- the document's id relative to the given context's reader- Throws:
IOException
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scorerSupplier
Description copied from class:WeightGet aScorerSupplier, which allows knowing the cost of theScorerbefore building it. A scorer supplier for the sameLeafReaderContextinstance may be requested multiple times as part of a single search call.Note: It must return null if the scorer is null.
- Specified by:
scorerSupplierin classWeight- Parameters:
context- the leaf reader context- Returns:
- a
ScorerSupplierproviding the scorer, or null if scorer is null - Throws:
IOException- if an IOException occurs- See Also:
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isCacheable
- Returns:
trueif the object can be cached against a given leaf
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explain
Explain the score we computed for doc- Specified by:
explainin classWeight- Parameters:
context- the readers context to create theExplanationfor.doc- the document's id relative to the given context's reader- Returns:
- an Explanation for the score
- Throws:
IOException- if anIOExceptionoccurs
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