/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.sparql.graph;
import org.apache.jena.datatypes.RDFDatatype ;
import org.apache.jena.datatypes.xsd.XSDDatatype ;
import org.apache.jena.graph.Node ;
import org.apache.jena.graph.NodeFactory ;
import org.apache.jena.vocabulary.OWL ;
import org.apache.jena.vocabulary.RDF ;
/** Some node constants */
public class NodeConst
{
private static Node literal(String lex, RDFDatatype dt) {
return NodeFactory.createLiteral(lex, dt) ;
}
private static Node uri(String uriStr) {
return NodeFactory.createURI(uriStr) ;
}
public static final Node nodeTrue = literal("true", XSDDatatype.XSDboolean) ;
public static final Node nodeFalse = literal("false", XSDDatatype.XSDboolean) ;
public static final Node nodeZero = literal("0", XSDDatatype.XSDinteger) ;
public static final Node nodeOne = literal("1", XSDDatatype.XSDinteger) ;
public static final Node nodeTwo = literal("2", XSDDatatype.XSDinteger) ;
public static final Node nodeTen = literal("10", XSDDatatype.XSDinteger) ;
public static final Node nodeMinusOne = literal("-1", XSDDatatype.XSDinteger) ;
public static final Node emptyString = NodeFactory.createLiteral("") ;
// It should be safe to use RDF.Nodes.
// Falback code "just in case"
public static final Node nodeRDFType = RDF.Nodes.type ; //uri(RDF.uri+"type") ;
public static final Node nodeFirst = RDF.Nodes.first ; //uri(RDF.uri+"first") ;
public static final Node nodeRest = RDF.Nodes.rest ; //uri(RDF.uri+"rest") ;
public static final Node nodeNil = RDF.Nodes.nil; //uri(RDF.uri+"nil") ;
public static final Node nodeANY = Node.ANY ;
public static final Node nodeOwlSameAs = OWL.sameAs.asNode() ; //NodeFactory.createURI("http://www.w3.org/2002/07/owl#sameAs") ;
public static final Node rdfLangString = RDF.Nodes.langString ;
public static final RDFDatatype dtLangString = RDF.dtLangString ;
}