Package com.yahoo.searchlib.rankingexpression.evaluation

Class DoubleValue

java.lang.Object

com.yahoo.searchlib.rankingexpression.evaluation.Value

com.yahoo.searchlib.rankingexpression.evaluation.DoubleCompatibleValue

com.yahoo.searchlib.rankingexpression.evaluation.DoubleValue

public final class DoubleValue
extends DoubleCompatibleValue

A double value result of a ranking expression evaluation. In a boolean context doubles are true if they are different from 0.0

Author:

bratseth

Field Summary

Fields

Modifier and Type	Field	Description
static DoubleValue	NaN	The double value instance for NaN
static DoubleValue	zero	The double value instance for 0

Constructor Summary

Constructors

Constructor	Description
DoubleValue(double value)

Method Summary

Modifier and Type	Method	Description
Value	add(Value value)
boolean	asBoolean()	Returns this value as a boolean.
double	asDouble()	Returns this value as a double, or throws UnsupportedOperationException if it cannot be represented as a double
DoubleValue	asDoubleValue()	Returns this value as a double value, or throws UnsupportedOperationException if it cannot be represented as a double
DoubleValue	asMutable()	Returns this is mutable, or a mutable copy otherwise
Value	divide(Value value)
boolean	equals(Object other)
static DoubleValue	frozen(double value)	Create a double which is frozen at the outset.
Value	function(Function function, Value value)	Perform the given binary function on this value and the given value
int	hashCode()
Value	modulo(Value value)
Value	multiply(Value value)
DoubleValue	negate()
Value	subtract(Value value)
String	toString()

Methods inherited from class com.yahoo.searchlib.rankingexpression.evaluation.DoubleCompatibleValue

and, asTensor, compare, hasDouble, not, or, power, type

Methods inherited from class com.yahoo.searchlib.rankingexpression.evaluation.Value

doubleAsTensor, freeze, isFrozen, isNaN, of, of, parse

Methods inherited from class java.lang.Object

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

Field Detail

zero

public static final DoubleValue zero

The double value instance for 0

NaN

public static final DoubleValue NaN

The double value instance for NaN

Constructor Detail

DoubleValue

public DoubleValue(double value)

Method Detail

frozen

public static DoubleValue frozen(double value)

Create a double which is frozen at the outset.

asDouble

public double asDouble()

Description copied from class: Value

Returns this value as a double, or throws UnsupportedOperationException if it cannot be represented as a double

Specified by:

asDouble in class Value

asDoubleValue

public DoubleValue asDoubleValue()

Description copied from class: Value

Returns this value as a double value, or throws UnsupportedOperationException if it cannot be represented as a double

Overrides:

asDoubleValue in class Value

asBoolean

public boolean asBoolean()

Description copied from class: Value

Returns this value as a boolean.

Specified by:

asBoolean in class Value

negate

public DoubleValue negate()

Overrides:

negate in class DoubleCompatibleValue

add

public Value add(Value value)

Overrides:

add in class DoubleCompatibleValue

subtract

public Value subtract(Value value)

Overrides:

subtract in class DoubleCompatibleValue

multiply

public Value multiply(Value value)

Overrides:

multiply in class DoubleCompatibleValue

divide

public Value divide(Value value)

Overrides:

divide in class DoubleCompatibleValue

modulo

public Value modulo(Value value)

Overrides:

modulo in class DoubleCompatibleValue

function

public Value function(Function function,
                      Value value)

Description copied from class: Value

Perform the given binary function on this value and the given value

Overrides:

function in class DoubleCompatibleValue

asMutable

public DoubleValue asMutable()

Description copied from class: Value

Returns this is mutable, or a mutable copy otherwise

Specified by:

asMutable in class Value

toString

public String toString()

Specified by:

toString in class Value

equals

public boolean equals(Object other)

Specified by:

equals in class Value

hashCode

public int hashCode()

Specified by:

hashCode in class Value