Class MultiValuedDoubleFieldSource
- java.lang.Object
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- org.apache.lucene.queries.function.ValueSource
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- org.apache.lucene.queries.function.valuesource.FieldCacheSource
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- org.apache.lucene.queries.function.valuesource.DoubleFieldSource
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- org.apache.lucene.queries.function.valuesource.MultiValuedDoubleFieldSource
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public class MultiValuedDoubleFieldSource extends DoubleFieldSource
Obtains double field values fromLeafReader.getSortedNumericDocValues(java.lang.String)and using aSortedNumericSelectorit gives a single-valued ValueSource view of a field.
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Field Summary
Fields Modifier and Type Field Description protected SortedNumericSelector.Typeselector-
Fields inherited from class org.apache.lucene.queries.function.valuesource.FieldCacheSource
field
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Constructor Summary
Constructors Constructor Description MultiValuedDoubleFieldSource(String field, SortedNumericSelector.Type selector)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Stringdescription()description of field, used in explain()booleanequals(Object o)protected NumericDocValuesgetNumericDocValues(Map<Object,Object> context, LeafReaderContext readerContext)SortFieldgetSortField(boolean reverse)EXPERIMENTAL: This method is subject to change.inthashCode()-
Methods inherited from class org.apache.lucene.queries.function.valuesource.DoubleFieldSource
getValues
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Methods inherited from class org.apache.lucene.queries.function.valuesource.FieldCacheSource
getField
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Methods inherited from class org.apache.lucene.queries.function.ValueSource
asDoubleValuesSource, asLongValuesSource, createWeight, fromDoubleValuesSource, newContext, toString
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Field Detail
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selector
protected final SortedNumericSelector.Type selector
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Constructor Detail
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MultiValuedDoubleFieldSource
public MultiValuedDoubleFieldSource(String field, SortedNumericSelector.Type selector)
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Method Detail
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getSortField
public SortField getSortField(boolean reverse)
Description copied from class:ValueSourceEXPERIMENTAL: This method is subject to change.Get the SortField for this ValueSource. Uses the
ValueSource.getValues(java.util.Map, org.apache.lucene.index.LeafReaderContext)to populate the SortField.- Overrides:
getSortFieldin classDoubleFieldSource- Parameters:
reverse- true if this is a reverse sort.- Returns:
- The
SortFieldfor the ValueSource
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description
public String description()
Description copied from class:ValueSourcedescription of field, used in explain()- Overrides:
descriptionin classDoubleFieldSource
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getNumericDocValues
protected NumericDocValues getNumericDocValues(Map<Object,Object> context, LeafReaderContext readerContext) throws IOException
- Overrides:
getNumericDocValuesin classDoubleFieldSource- Throws:
IOException
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equals
public boolean equals(Object o)
- Overrides:
equalsin classDoubleFieldSource
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hashCode
public int hashCode()
- Overrides:
hashCodein classDoubleFieldSource
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