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
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Field Summary
Modifier and TypeFieldDescriptionThe Weights for our subqueries, in 1-1 correspondence with disjunctsFields inherited from class org.apache.lucene.search.Weight
parentQuery
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Constructor Summary
ConstructorDescriptionDisjunctionMaxWeight
(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 docboolean
matches
(LeafReaderContext context, int doc) ReturnsMatches
for a specific document, ornull
if the document does not match the parent queryscorer
(LeafReaderContext context) Create the scorer used to score our associated DisjunctionMaxQueryMethods inherited from class org.apache.lucene.search.Weight
bulkScorer, count, getQuery, scorerSupplier
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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:Weight
ReturnsMatches
for a specific document, ornull
if 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:
matches
in classWeight
- Parameters:
context
- the reader's context to create theMatches
fordoc
- the document's id relative to the given context's reader- Throws:
IOException
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scorer
Create the scorer used to score our associated DisjunctionMaxQuery- Specified by:
scorer
in classWeight
- Parameters:
context
- theLeafReaderContext
for which to return theScorer
.- Returns:
- a
Scorer
which scores documents in/out-of order. - Throws:
IOException
- if there is a low-level I/O error
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isCacheable
- Returns:
true
if the object can be cached against a given leaf
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explain
Explain the score we computed for doc- Specified by:
explain
in classWeight
- 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:
IOException
- if anIOException
occurs
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