Package org.apache.jena.graph

Class NodeFactory

java.lang.Object

org.apache.jena.graph.NodeFactory

public class NodeFactory
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
NodeFactory()

Method Summary

Modifier and Type	Method	Description
static Node	createBlankNode()	Make a fresh blank node
static Node	createBlankNode(java.lang.String string)	make a blank node with the specified label
static Node	createBlankNode(BlankNodeId id)	make a blank node with the specified label
static Node	createExt(java.lang.String name)	make an extension node based on a string.
static Node	createGraphNode(Graph graph)	Create a graph node.
static Node	createLiteral(java.lang.String value)
static Node	createLiteral(java.lang.String lex, java.lang.String lang)	Make a literal with specified language.
static Node	createLiteral(java.lang.String lex, java.lang.String lang, boolean isXml)	make a literal with specified language and XMLishness.
static Node	createLiteral(java.lang.String lex, java.lang.String lang, RDFDatatype dtype)	Build a literal node from its lexical form.
static Node	createLiteral(java.lang.String lex, RDFDatatype dtype)	Build a typed literal node from its lexical form.
static Node	createLiteral(LiteralLabel lit)	make a literal node with the specified literal value
static Node	createLiteralByValue(java.lang.Object value, java.lang.String lang, RDFDatatype dtype)	Create a Node based on the value If the value is a string we assume this is intended to be a lexical form after all.
static Node	createLiteralByValue(java.lang.Object value, RDFDatatype dtype)	Create a Node based on the value If the value is a string we assume this is intended to be a lexical form after all.
static Node	createTripleNode(Node s, Node p, Node o)	Create a triple node (RDF-star)
static Node	createTripleNode(Triple triple)	Create a triple node (RDF-star)
static Node	createURI(java.lang.String uri)	make a URI node with the specified URIref string
static Node	createVariable(java.lang.String name)	make a variable node with a given name
static RDFDatatype	getType(java.lang.String s)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeFactory

public NodeFactory()

Method Detail

getType

public static RDFDatatype getType(java.lang.String s)

createBlankNode

public static Node createBlankNode()

Make a fresh blank node

createBlankNode

public static Node createBlankNode(BlankNodeId id)

make a blank node with the specified label

createBlankNode

public static Node createBlankNode(java.lang.String string)

make a blank node with the specified label

createLiteral

public static Node createLiteral(LiteralLabel lit)

make a literal node with the specified literal value

createURI

public static Node createURI(java.lang.String uri)

make a URI node with the specified URIref string

createVariable

public static Node createVariable(java.lang.String name)

make a variable node with a given name

createExt

public static Node createExt(java.lang.String name)

make an extension node based on a string.

createLiteral

public static Node createLiteral(java.lang.String value)

createLiteral

public static Node createLiteral(java.lang.String lex,
                                 java.lang.String lang,
                                 boolean isXml)

make a literal with specified language and XMLishness. lexical form must not be null.

Parameters:

lex -

lang -

isXml - If true then lit is exclusive canonical XML of type rdf:XMLLiteral, and no checking will be invoked.

createLiteral

public static Node createLiteral(java.lang.String lex,
                                 java.lang.String lang)

Make a literal with specified language. lexical form must not be null.

Parameters:

lex - the lexical form of the literal

lang - the optional language tag

createLiteral

public static Node createLiteral(java.lang.String lex,
                                 java.lang.String lang,
                                 RDFDatatype dtype)
                          throws DatatypeFormatException

Build a literal node from its lexical form. The lexical form will be parsed now and the value stored. If the form is not legal this will throw an exception.

Parameters:

lex - the lexical form of the literal

lang - the optional language tag

dtype - the type of the literal

Throws:

DatatypeFormatException - if lex is not a legal form of dtype

createLiteral

public static Node createLiteral(java.lang.String lex,
                                 RDFDatatype dtype)
                          throws DatatypeFormatException

Build a typed literal node from its lexical form. The lexical form will be parsed now and the value stored. If the form is not legal this will throw an exception.

Parameters:

lex - the lexical form of the literal

dtype - the type of the literal

Throws:

DatatypeFormatException - if lex is not a legal form of dtype

createLiteralByValue

public static Node createLiteralByValue(java.lang.Object value,
                                        RDFDatatype dtype)
                                 throws DatatypeFormatException

Create a Node based on the value If the value is a string we assume this is intended to be a lexical form after all.

Parameters:

value - The value, mapped according to registered types.

dtype - RDF Datatype.

Returns:

Node

Throws:

DatatypeFormatException

createLiteralByValue

public static Node createLiteralByValue(java.lang.Object value,
                                        java.lang.String lang,
                                        RDFDatatype dtype)
                                 throws DatatypeFormatException

Create a Node based on the value If the value is a string we assume this is intended to be a lexical form after all.

Parameters:

value - The value, mapped according to registered types.

lang - (optional) Language tag, if a string.

dtype - RDF Datatype.

Returns:

Node

Throws:

DatatypeFormatException

createTripleNode

public static Node createTripleNode(Node s,
                                    Node p,
                                    Node o)

Create a triple node (RDF-star)

createTripleNode

public static Node createTripleNode(Triple triple)

Create a triple node (RDF-star)

createGraphNode

public static Node createGraphNode(Graph graph)

Create a graph node. This is an N3-formula; it is not a named graph (see "quad")