org.openrdf.model
Interface ValueFactory

All Known Implementing Classes:

AllegroGraph

public interface ValueFactory

A Factory for creating resources, bNodes and literals. The created object should all properly implement the equals(java.lang.Object) method.

Method Summary

BNode	createBNode() Creates a new bNode.
BNode	createBNode(java.lang.String nodeId) creates a new bNode with the given node identifier.
Literal	createLiteral(java.lang.String value) Creates a new literal with the supplied value.
Literal	createLiteral(java.lang.String value, java.lang.String language) Creates a new literal with the supplied value and language attribute.
Literal	createLiteral(java.lang.String value, URI datatype) Creates a new literal with the supplied value and datatype.
Statement	createStatement(Resource subject, URI predicate, Value object) Creates a new statement with the supplied subject, predicate and object.
URI	createURI(java.lang.String uri) Creates a new URI from the supplied string-representation.
URI	createURI(java.lang.String namespace, java.lang.String localName) Creates a new URI that will get the supplied namespace and local name.

Method Detail

createURI

public URI createURI(java.lang.String uri)

Creates a new URI from the supplied string-representation.

Parameters:

uri - A string-representation of a URI.

Returns:

An object representing the URI.

Throws:

IlllegalArgumentException - If the supplied string does not resolve to a legal (absolute) URI.

createURI

public URI createURI(java.lang.String namespace,
                     java.lang.String localName)

Creates a new URI that will get the supplied namespace and local name.

Parameters:

namespace - A namespace.

localName - A legal local name. A legal local name adheres to the definition of an NCName as specified at http://www.w3.org/TR/REC-xml-names/#NT-NCName.

Throws:

java.lang.IllegalArgumentException - If the supplied namespace and localname do not resolve to a legal (absolute) URI.

createBNode

public BNode createBNode()

Creates a new bNode.

Returns:

An object representing the bNode.

createBNode

public BNode createBNode(java.lang.String nodeId)

creates a new bNode with the given node identifier.

Parameters:

nodeId - the bnode identifier

Returns:

an object representing the bnode.

createLiteral

public Literal createLiteral(java.lang.String value)

Creates a new literal with the supplied value.

Parameters:

value - The literal's value.

createLiteral

public Literal createLiteral(java.lang.String value,
                             java.lang.String language)

Creates a new literal with the supplied value and language attribute.

Parameters:

value - The literal's value.

language - The literal's language attribute, or null if the literal doesn't have a language.

createLiteral

public Literal createLiteral(java.lang.String value,
                             URI datatype)

Creates a new literal with the supplied value and datatype.

Parameters:

value - The literal's value.

datatype - The literal's datatype, or null if the literal doesn't have a datatype.

createStatement

public Statement createStatement(Resource subject,
                                 URI predicate,
                                 Value object)

Creates a new statement with the supplied subject, predicate and object.

Parameters:

subject - The statement's subject.

predicate - The statement's predicate.

object - The statement's object.

Returns:

The created statement.