Package org.apache.lucene.queries.function.valuesource

Class DoubleConstValueSource

java.lang.Object

org.apache.lucene.queries.function.ValueSource

org.apache.lucene.queries.function.valuesource.ConstNumberSource

org.apache.lucene.queries.function.valuesource.DoubleConstValueSource

public class DoubleConstValueSource
extends ConstNumberSource

Function that returns a constant double value for every document.

Constructor Summary

Constructors

Constructor	Description
DoubleConstValueSource(double constant)

Method Summary

Modifier and Type	Method	Description
String	description()	description of field, used in explain()
boolean	equals(Object o)
boolean	getBool()
double	getDouble()
float	getFloat()
int	getInt()
long	getLong()
Number	getNumber()
FunctionValues	getValues(Map<Object,Object> context, LeafReaderContext readerContext)	Gets the values for this reader and the context that was previously passed to createWeight().
int	hashCode()

Methods inherited from class org.apache.lucene.queries.function.ValueSource

asDoubleValuesSource, asLongValuesSource, createWeight, fromDoubleValuesSource, getSortField, newContext, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DoubleConstValueSource

public DoubleConstValueSource(double constant)

Method Detail

description

public String description()

Description copied from class: ValueSource

description of field, used in explain()

Specified by:

description in class ValueSource

getValues

public FunctionValues getValues(Map<Object,Object> 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 class ValueSource

Throws:

IOException

hashCode

public int hashCode()

Specified by:

hashCode in class ValueSource

equals

public boolean equals(Object o)

Specified by:

equals in class ValueSource

getInt

public int getInt()

Specified by:

getInt in class ConstNumberSource

getLong

public long getLong()

Specified by:

getLong in class ConstNumberSource

getFloat

public float getFloat()

Specified by:

getFloat in class ConstNumberSource

getDouble

public double getDouble()

Specified by:

getDouble in class ConstNumberSource

getNumber

public Number getNumber()

Specified by:

getNumber in class ConstNumberSource

getBool

public boolean getBool()

Specified by:

getBool in class ConstNumberSource