org.eclipse.rdf4j.model

Interface Value

All Superinterfaces:

Serializable

All Known Subinterfaces:

BNode, IRI, Literal, MemResource, MemValue, NativeResource, NativeValue, Resource, Triple, URI

All Known Implementing Classes:

AbstractBNode, AbstractIRI, AbstractLiteral, AbstractTriple, BNodeImpl, BooleanLiteral, BooleanLiteralImpl, BooleanMemLiteral, CalendarLiteral, CalendarMemLiteral, DecimalLiteral, DecimalMemLiteral, IntegerLiteral, IntegerMemLiteral, LiteralImpl, MemBNode, MemIRI, MemLiteral, MemTriple, NativeBNode, NativeIRI, NativeLiteral, NumericLiteral, NumericMemLiteral, SimpleBNode, SimpleIRI, SimpleLiteral, SimpleTriple, URIImpl

public interface Value
extends Serializable

The supertype of all RDF model objects (URIs, blank nodes and literals).

Method Summary

Modifier and Type	Method and Description
default boolean	isBNode() Check if the object is an instance of the given type.
default boolean	isIRI() Check if the object is an instance of the given type.
default boolean	isLiteral() Check if the object is an instance of the given type.
default boolean	isResource() Check if the object is an instance of the given type.
default boolean	isTriple() Check if the object is an instance of the given type.
String	stringValue() Returns the String-value of a Value object.

Method Detail

isBNode

default boolean isBNode()

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Returns:

true if instance of BNode

isIRI

default boolean isIRI()

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Returns:

true if instance of IRI

isResource

default boolean isResource()

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Returns:

true if instance of Resource

isLiteral

default boolean isLiteral()

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Returns:

true if instance of Literal

isTriple

default boolean isTriple()

Check if the object is an instance of the given type. Typically 2x than using instanceof. For implementers: This default implementation is overridden in the repsective sub-interface.

Returns:

true if instance of Triple

stringValue

String stringValue()

Returns the String-value of a Value object. This returns either a Literal's label, a IRI's URI or a BNode's ID.