Class SimpleFloatFunction
- java.lang.Object
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- org.apache.lucene.queries.function.ValueSource
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- org.apache.lucene.queries.function.valuesource.SingleFunction
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- org.apache.lucene.queries.function.valuesource.SimpleFloatFunction
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public abstract class SimpleFloatFunction extends SingleFunction
A simple float function with a single argument
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Field Summary
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Fields inherited from class org.apache.lucene.queries.function.valuesource.SingleFunction
source
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Constructor Summary
Constructors Constructor Description SimpleFloatFunction(ValueSource source)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected abstract float
func(int doc, FunctionValues vals)
FunctionValues
getValues(Map context, LeafReaderContext readerContext)
Gets the values for this reader and the context that was previously passed to createWeight().-
Methods inherited from class org.apache.lucene.queries.function.valuesource.SingleFunction
createWeight, description, equals, hashCode, name
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Methods inherited from class org.apache.lucene.queries.function.ValueSource
asDoubleValuesSource, asLongValuesSource, fromDoubleValuesSource, getSortField, newContext, toString
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Constructor Detail
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SimpleFloatFunction
public SimpleFloatFunction(ValueSource source)
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Method Detail
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func
protected abstract float func(int doc, FunctionValues vals) throws IOException
- Throws:
IOException
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getValues
public FunctionValues getValues(Map context, LeafReaderContext readerContext) throws IOException
Description copied from class:ValueSource
Gets 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:
getValues
in classValueSource
- Throws:
IOException
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