Package com.apicatalog.rdf.primitive

Class Literal

java.lang.Object

com.apicatalog.rdf.primitive.Literal

All Implemented Interfaces:

RdfLiteral, RdfTerm

Direct Known Subclasses:

LangString

public class Literal
extends java.lang.Object
implements RdfLiteral

Nested Class Summary

Nested classes/interfaces inherited from interface com.apicatalog.rdf.model.RdfLiteral

RdfLiteral.Direction

Field Summary

Fields

Modifier and Type	Field	Description
(package private) java.lang.String	datatype
(package private) java.lang.String	lexicalValue

Constructor Summary

Constructors

Constructor	Description
Literal(java.lang.String lexicalValue, java.lang.String datatype)

Method Summary

Modifier and Type	Method	Description
java.lang.String	datatype()	Returns the absolute IRI denoting the datatype of the literal.
java.util.Optional<RdfLiteral.Direction>	direction()	Returns the direction of the literal, which can be either left-to-right (LTR) or right-to-left (RTL).
boolean	equals(java.lang.Object obj)	Compares this RDF term to the specified object.
int	hashCode()	Returns a hash code value for this RDF term.
java.util.Optional<java.lang.String>	language()	Returns an optional language tag associated with the literal.
java.lang.String	lexicalValue()	Returns the lexical value of the literal.
static Literal	of(java.lang.String lexicalValue, java.lang.String datatype)
java.lang.String	toString()	Returns a string representation of this RDF term.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.apicatalog.rdf.model.RdfLiteral

asLiteral, isLiteral

Methods inherited from interface com.apicatalog.rdf.model.RdfTerm

asResource, asTriple, isResource, isTriple

Field Detail

lexicalValue

final java.lang.String lexicalValue

datatype

final java.lang.String datatype

Constructor Detail

Literal

Literal(java.lang.String lexicalValue,
        java.lang.String datatype)

Method Detail

of

public static Literal of(java.lang.String lexicalValue,
                         java.lang.String datatype)

lexicalValue

public java.lang.String lexicalValue()

Description copied from interface: RdfLiteral

Returns the lexical value of the literal.

The lexical value is the actual content or value of the literal as a string.

Specified by:

lexicalValue in interface RdfLiteral

Returns:

the lexical value of the literal, never null

datatype

public java.lang.String datatype()

Description copied from interface: RdfLiteral

Returns the absolute IRI denoting the datatype of the literal.

Specified by:

datatype in interface RdfLiteral

Returns:

the datatype IRI of the literal, never null

language

public java.util.Optional<java.lang.String> language()

Description copied from interface: RdfLiteral

Returns an optional language tag associated with the literal.

If the literal is a language-tagged string (e.g. rdf:langString), this method returns the language tag; otherwise, it returns Optional.empty().

Specified by:

language in interface RdfLiteral

Returns:

an Optional containing the language tag if present, or Optional.empty() if not set

direction

public java.util.Optional<RdfLiteral.Direction> direction()

Description copied from interface: RdfLiteral

Returns the direction of the literal, which can be either left-to-right (LTR) or right-to-left (RTL).

Specified by:

direction in interface RdfLiteral

Returns:

an Optional containing the direction if present, or Optional.empty() if not set

hashCode

public int hashCode()

Description copied from interface: RdfTerm

Returns a hash code value for this RDF term.

Specified by:

hashCode in interface RdfTerm

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code consistent with RdfTerm.equals(Object).

equals

public boolean equals(java.lang.Object obj)

Description copied from interface: RdfTerm

Compares this RDF term to the specified object. Implementations must override this method to provide equality checks appropriate to the term type.

Specified by:

equals in interface RdfTerm

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object to compare with this term.

Returns:

true if the specified object is equal to this term; false otherwise.

toString

public java.lang.String toString()

Description copied from interface: RdfTerm

Returns a string representation of this RDF term.

Specified by:

toString in interface RdfTerm

Overrides:

toString in class java.lang.Object

Returns:

a string describing this RDF term.