java.lang.Object
org.apache.lucene.search.Scorable
org.apache.lucene.search.Scorer
org.apache.lucene.search.DisjunctionScorer
org.apache.lucene.search.DisjunctionSumScorer
A Scorer for OR like queries, counterpart of
ConjunctionScorer
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.search.Scorable
Scorable.ChildScorable
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionDisjunctionSumScorer
(Weight weight, List<Scorer> subScorers, ScoreMode scoreMode) Construct aDisjunctionScorer
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Method Summary
Modifier and TypeMethodDescriptionint
advanceShallow
(int target) Advance to the block of documents that containstarget
in order to get scoring information about this block.float
getMaxScore
(int upTo) Return the maximum score that documents between the lasttarget
that this iterator wasshallow-advanced
to included andupTo
included.protected float
score
(DisiWrapper topList) Compute the score for the given linked list of scorers.Methods inherited from class org.apache.lucene.search.DisjunctionScorer
docID, getChildren, getSubMatches, iterator, score, twoPhaseIterator
Methods inherited from class org.apache.lucene.search.Scorable
setMinCompetitiveScore, smoothingScore
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Field Details
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scorers
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Constructor Details
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DisjunctionSumScorer
DisjunctionSumScorer(Weight weight, List<Scorer> subScorers, ScoreMode scoreMode) throws IOException Construct aDisjunctionScorer
.- Parameters:
weight
- The weight to be used.subScorers
- Array of at least two subscorers.- Throws:
IOException
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Method Details
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score
Description copied from class:DisjunctionScorer
Compute the score for the given linked list of scorers.- Specified by:
score
in classDisjunctionScorer
- Throws:
IOException
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advanceShallow
Description copied from class:Scorer
Advance to the block of documents that containstarget
in order to get scoring information about this block. This method is implicitly called byDocIdSetIterator.advance(int)
andDocIdSetIterator.nextDoc()
on the returned doc ID. Calling this method doesn't modify the currentDocIdSetIterator.docID()
. It returns a number that is greater than or equal to all documents contained in the current block, but less than any doc IDS of the next block.target
must be >=Scorable.docID()
as well as all targets that have been passed toScorer.advanceShallow(int)
so far.- Overrides:
advanceShallow
in classScorer
- Throws:
IOException
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getMaxScore
Description copied from class:Scorer
Return the maximum score that documents between the lasttarget
that this iterator wasshallow-advanced
to included andupTo
included.- Specified by:
getMaxScore
in classScorer
- Throws:
IOException
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