Class AbstractLiteral.NumberLiteral

java.lang.Object

org.eclipse.rdf4j.model.base.AbstractLiteral

org.eclipse.rdf4j.model.base.AbstractLiteral.NumberLiteral

All Implemented Interfaces:

Serializable, Literal, Value

Direct Known Subclasses:

AbstractLiteral.DecimalLiteral, AbstractLiteral.IntegerLiteral

Enclosing class:

AbstractLiteral

static class AbstractLiteral.NumberLiteral
extends AbstractLiteral

Since:

3.5.0

Nested Class Summary

Nested classes/interfaces inherited from class AbstractLiteral

AbstractLiteral.BooleanLiteral, AbstractLiteral.CalendarLiteral, AbstractLiteral.DecimalLiteral, AbstractLiteral.IntegerLiteral, AbstractLiteral.NumberLiteral, AbstractLiteral.TaggedLiteral, AbstractLiteral.TemporalAccessorLiteral, AbstractLiteral.TemporalAmountLiteral, AbstractLiteral.TypedLiteral

Field Summary

Fields

Modifier and Type	Field	Description
private final CoreDatatype.XSD	datatype
private final String	label
private static final String	NAN
private static final String	NEGATIVE_INFINITY
private static final String	POSITIVE_INFINITY
private static final long	serialVersionUID
protected Number	value

Constructor Summary

Constructors

Constructor	Description
NumberLiteral(byte value)
NumberLiteral(double value)
NumberLiteral(float value)
NumberLiteral(int value)
NumberLiteral(long value)
NumberLiteral(short value)
NumberLiteral(Number value, String label, CoreDatatype.XSD datatype)

Method Summary

Modifier and Type	Method	Description
byte	byteValue()	Returns the byte value of this literal.
double	doubleValue()	Returns the double value of this literal.
float	floatValue()	Returns the float value of this literal.
CoreDatatype	getCoreDatatype()	CoreDatatype is an interface for natively supported datatypes in RDF4J.
IRI	getDatatype()	Gets the datatype for this literal.
String	getLabel()	Gets the label (the lexical value) of this literal.
Optional<String>	getLanguage()	Gets the language tag for this literal, normalized to lower case.
int	intValue()	Returns the int value of this literal.
long	longValue()	Returns the long value of this literal.
(package private) static double	parseDouble(String label)
(package private) static float	parseFloat(String label)
short	shortValue()	Returns the short value of this literal.
private static String	toString(double value)
private static String	toString(float value)

Methods inherited from class AbstractLiteral

booleanValue, calendarValue, decimalValue, equals, hashCode, integerValue, reserved, reserved, stringValue, temporalAccessorValue, temporalAmountValue, toString

Methods inherited from class Object

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

Methods inherited from interface Literal

isLiteral

Methods inherited from interface Value

isBNode, isIRI, isResource, isTriple

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

POSITIVE_INFINITY

private static final String POSITIVE_INFINITY

See Also:

• Constant Field Values

NEGATIVE_INFINITY

private static final String NEGATIVE_INFINITY

See Also:

• Constant Field Values

NAN

private static final String NAN

See Also:

• Constant Field Values

value

protected Number value

label

private final String label

datatype

private final CoreDatatype.XSD datatype

Constructor Details

NumberLiteral

NumberLiteral(byte value)

NumberLiteral

NumberLiteral(short value)

NumberLiteral

NumberLiteral(int value)

NumberLiteral

NumberLiteral(long value)

NumberLiteral

NumberLiteral(float value)

NumberLiteral

NumberLiteral(double value)

NumberLiteral

NumberLiteral(Number value,
 String label,
 CoreDatatype.XSD datatype)

Method Details

parseFloat

static float parseFloat(String label)

parseDouble

static double parseDouble(String label)

toString

private static String toString(float value)

toString

private static String toString(double value)

getLabel

public String getLabel()

Description copied from interface: Literal

Gets the label (the lexical value) of this literal.

Returns:

The literal's label.

getLanguage

public Optional<String> getLanguage()

Description copied from interface: Literal

Gets the language tag for this literal, normalized to lower case.

Returns:

The language tag for this literal, or Optional.empty() if it doesn't have one.

getDatatype

public IRI getDatatype()

Description copied from interface: Literal

Gets the datatype for this literal.

If Literal.getLanguage() returns a non-empty value than this must return rdf:langString. If no datatype was assigned to this literal by the creator, then this method must return xsd:string.

Returns:

The datatype for this literal.

byteValue

public byte byteValue()

Description copied from interface: Literal

Returns the byte value of this literal.

Specified by:

byteValue in interface Literal

Overrides:

byteValue in class AbstractLiteral

Returns:

The byte value of the literal.

shortValue

public short shortValue()

Description copied from interface: Literal

Returns the short value of this literal.

Specified by:

shortValue in interface Literal

Overrides:

shortValue in class AbstractLiteral

Returns:

The short value of the literal.

intValue

public int intValue()

Description copied from interface: Literal

Returns the int value of this literal.

Specified by:

intValue in interface Literal

Overrides:

intValue in class AbstractLiteral

Returns:

The int value of the literal.

longValue

public long longValue()

Description copied from interface: Literal

Returns the long value of this literal.

Specified by:

longValue in interface Literal

Overrides:

longValue in class AbstractLiteral

Returns:

The long value of the literal.

floatValue

public float floatValue()

Description copied from interface: Literal

Returns the float value of this literal.

Specified by:

floatValue in interface Literal

Overrides:

floatValue in class AbstractLiteral

Returns:

The float value of the literal.

doubleValue

public double doubleValue()

Description copied from interface: Literal

Returns the double value of this literal.

Specified by:

doubleValue in interface Literal

Overrides:

doubleValue in class AbstractLiteral

Returns:

The double value of the literal.

getCoreDatatype

public CoreDatatype getCoreDatatype()

Description copied from interface: Literal

CoreDatatype is an interface for natively supported datatypes in RDF4J. This includes, among others, the XML Schema datatypes and rdf:langString. CoreDatatypes are implemented as enums and more performant and convenient to work with than IRI-based datatypes. The constant

invalid @link

{@link CoreDatatype#NONE)

} is used to represent a datatype that is not one of the supported core datatypes.

Returns:

The CoreDatatype or

invalid @link

{@link CoreDatatype#NONE)

} if the datatype matches none of the core datatypes. This method will not return null.