Package org.apache.lucene.search
Class TopTermsRewrite<B>
- java.lang.Object
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- org.apache.lucene.search.MultiTermQuery.RewriteMethod
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- org.apache.lucene.search.TermCollectingRewrite<B>
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- org.apache.lucene.search.TopTermsRewrite<B>
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- Direct Known Subclasses:
MultiTermQuery.TopTermsBlendedFreqScoringRewrite
,MultiTermQuery.TopTermsBoostOnlyBooleanQueryRewrite
,MultiTermQuery.TopTermsScoringBooleanQueryRewrite
public abstract class TopTermsRewrite<B> extends TermCollectingRewrite<B>
Base rewrite method for collecting only the top terms via a priority queue.
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Nested Class Summary
Nested Classes Modifier and Type Class Description (package private) static class
TopTermsRewrite.ScoreTerm
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Nested classes/interfaces inherited from class org.apache.lucene.search.TermCollectingRewrite
TermCollectingRewrite.TermCollector
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Field Summary
Fields Modifier and Type Field Description private static java.util.Comparator<TopTermsRewrite.ScoreTerm>
scoreTermSortByTermComp
private int
size
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Constructor Summary
Constructors Constructor Description TopTermsRewrite(int size)
Create a TopTermsBooleanQueryRewrite for at mostsize
terms.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description boolean
equals(java.lang.Object obj)
protected abstract int
getMaxSize()
return the maximum size of the priority queue (for boolean rewrites this is BooleanQuery#getMaxClauseCount).int
getSize()
return the maximum priority queue sizeint
hashCode()
Query
rewrite(IndexReader reader, MultiTermQuery query)
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Methods inherited from class org.apache.lucene.search.TermCollectingRewrite
addClause, addClause, build, collectTerms, getTopLevelBuilder
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Methods inherited from class org.apache.lucene.search.MultiTermQuery.RewriteMethod
getTermsEnum
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Field Detail
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size
private final int size
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scoreTermSortByTermComp
private static final java.util.Comparator<TopTermsRewrite.ScoreTerm> scoreTermSortByTermComp
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Constructor Detail
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TopTermsRewrite
public TopTermsRewrite(int size)
Create a TopTermsBooleanQueryRewrite for at mostsize
terms.NOTE: if
BooleanQuery.getMaxClauseCount()
is smaller thansize
, then it will be used instead.
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Method Detail
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getSize
public int getSize()
return the maximum priority queue size
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getMaxSize
protected abstract int getMaxSize()
return the maximum size of the priority queue (for boolean rewrites this is BooleanQuery#getMaxClauseCount).
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rewrite
public final Query rewrite(IndexReader reader, MultiTermQuery query) throws java.io.IOException
- Specified by:
rewrite
in classMultiTermQuery.RewriteMethod
- Throws:
java.io.IOException
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equals
in classjava.lang.Object
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