Class RangeMapFloatFunction
java.lang.Object
org.apache.lucene.queries.function.ValueSource
org.apache.lucene.queries.function.valuesource.RangeMapFloatFunction
RangeMapFloatFunction implements a map function over another ValueSource
whose values fall within min and max inclusive to target. Normally Used as an argument to a
FunctionQuery-
Field Summary
FieldsModifier and TypeFieldDescriptionprotected final ValueSourceprotected final floatprotected final floatprotected final ValueSourceprotected final ValueSource -
Constructor Summary
ConstructorsConstructorDescriptionRangeMapFloatFunction(ValueSource source, float min, float max, float target, Float def) RangeMapFloatFunction(ValueSource source, float min, float max, ValueSource target, ValueSource def) -
Method Summary
Modifier and TypeMethodDescriptionvoidcreateWeight(Map<Object, Object> context, IndexSearcher searcher) Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context.description of field, used in explain()booleangetValues(Map<Object, Object> context, LeafReaderContext readerContext) Gets the values for this reader and the context that was previously passed to createWeight().inthashCode()Methods inherited from class org.apache.lucene.queries.function.ValueSource
asDoubleValuesSource, asLongValuesSource, fromDoubleValuesSource, getSortField, newContext, toString
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Field Details
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source
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min
protected final float min -
max
protected final float max -
target
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defaultVal
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Constructor Details
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RangeMapFloatFunction
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RangeMapFloatFunction
public RangeMapFloatFunction(ValueSource source, float min, float max, ValueSource target, ValueSource def)
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Method Details
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description
Description copied from class:ValueSourcedescription of field, used in explain()- Specified by:
descriptionin classValueSource
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getValues
public FunctionValues getValues(Map<Object, Object> context, LeafReaderContext readerContext) throws IOExceptionDescription copied from class:ValueSourceGets the values for this reader and the context that was previously passed to createWeight(). The values must be consumed in a forward docID manner, and you must call this method again to iterate through the values again.- Specified by:
getValuesin classValueSource- Throws:
IOException
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createWeight
Description copied from class:ValueSourceImplementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context. The context object will be passed to getValues() where this info can be retrieved.- Overrides:
createWeightin classValueSource- Throws:
IOException
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hashCode
public int hashCode()- Specified by:
hashCodein classValueSource
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equals
- Specified by:
equalsin classValueSource
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