| /* |
| * 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.core; |
| |
| import java.util.Iterator ; |
| |
| import org.apache.jena.query.QuerySolution ; |
| import org.apache.jena.rdf.model.Literal ; |
| import org.apache.jena.rdf.model.RDFNode ; |
| import org.apache.jena.rdf.model.Resource ; |
| |
| /** Implementation of QuerySolution that contains the canonicalization and casting code. */ |
| |
| public abstract class QuerySolutionBase implements QuerySolution |
| { |
| @Override |
| public RDFNode get(String varName) { return _get(Var.canonical(varName)) ; } |
| |
| protected abstract RDFNode _get(String varName) ; |
| |
| @Override |
| public Resource getResource(String varName) { return (Resource)get(varName) ; } |
| |
| @Override |
| public Literal getLiteral(String varName) { return (Literal)get(varName) ; } |
| |
| @Override |
| public boolean contains(String varName) { return _contains(Var.canonical(varName)) ; } |
| |
| protected abstract boolean _contains(String varName) ; |
| |
| @Override |
| public abstract Iterator<String> varNames() ; |
| } |