Package org.apache.lucene.spatial.vector
Class DistanceValueSource
- java.lang.Object
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- org.apache.lucene.search.DoubleValuesSource
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- org.apache.lucene.spatial.vector.DistanceValueSource
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- All Implemented Interfaces:
SegmentCacheable
public class DistanceValueSource extends DoubleValuesSource
A DoubleValuesSource that returns the distance for aPointVectorStrategy.- NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
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Field Summary
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Fields inherited from class org.apache.lucene.search.DoubleValuesSource
SCORES
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Constructor Summary
Constructors Constructor Description DistanceValueSource(PointVectorStrategy strategy, org.locationtech.spatial4j.shape.Point from, double multiplier)Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanequals(Object o)DoubleValuesgetValues(LeafReaderContext readerContext, DoubleValues scores)Returns the FunctionValues used by the function query.inthashCode()booleanisCacheable(LeafReaderContext ctx)booleanneedsScores()DoubleValuesSourcerewrite(IndexSearcher searcher)StringtoString()Returns the ValueSource description.-
Methods inherited from class org.apache.lucene.search.DoubleValuesSource
constant, explain, fromDoubleField, fromField, fromFloatField, fromIntField, fromLongField, fromQuery, fromScorer, getSortField, similarityToQueryVector, similarityToQueryVector, toLongValuesSource, toSortableLongDoubleValuesSource
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Constructor Detail
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DistanceValueSource
public DistanceValueSource(PointVectorStrategy strategy, org.locationtech.spatial4j.shape.Point from, double multiplier)
Constructor.
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Method Detail
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toString
public String toString()
Returns the ValueSource description.- Specified by:
toStringin classDoubleValuesSource
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getValues
public DoubleValues getValues(LeafReaderContext readerContext, DoubleValues scores) throws IOException
Returns the FunctionValues used by the function query.- Specified by:
getValuesin classDoubleValuesSource- Throws:
IOException
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needsScores
public boolean needsScores()
- Specified by:
needsScoresin classDoubleValuesSource
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isCacheable
public boolean isCacheable(LeafReaderContext ctx)
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rewrite
public DoubleValuesSource rewrite(IndexSearcher searcher) throws IOException
- Specified by:
rewritein classDoubleValuesSource- Throws:
IOException
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equals
public boolean equals(Object o)
- Specified by:
equalsin classDoubleValuesSource
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hashCode
public int hashCode()
- Specified by:
hashCodein classDoubleValuesSource
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