| /* |
| * 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.syntax; |
| |
| import org.apache.jena.graph.Node ; |
| import org.apache.jena.sparql.util.NodeIsomorphismMap ; |
| |
| /** Evaluate a query element based on source information in a named collection. */ |
| |
| public class ElementNamedGraph extends Element |
| { |
| private Node sourceNode ; |
| private Element element ; |
| |
| // GRAPH * (not in SPARQL) |
| public ElementNamedGraph(Element el) |
| { |
| this(null, el) ; |
| } |
| |
| // GRAPH <uri> or GRAPH ?var |
| public ElementNamedGraph(Node n, Element el) |
| { |
| sourceNode = n ; |
| element = el ; |
| } |
| |
| public Node getGraphNameNode() { return sourceNode ; } |
| |
| /** @return Returns the element. */ |
| public Element getElement() |
| { |
| return element ; |
| } |
| |
| @Override |
| public int hashCode() { return element.hashCode() ^ sourceNode.hashCode() ; } |
| |
| @Override |
| public boolean equalTo(Element el2, NodeIsomorphismMap isoMap) |
| { |
| if ( el2 == null ) return false ; |
| |
| if ( ! ( el2 instanceof ElementNamedGraph ) ) |
| return false ; |
| ElementNamedGraph g2 = (ElementNamedGraph)el2 ; |
| if ( ! this.getGraphNameNode().equals(g2.getGraphNameNode()) ) |
| return false ; |
| if ( ! this.getElement().equalTo(g2.getElement(), isoMap) ) |
| return false ; |
| return true ; |
| } |
| |
| |
| @Override |
| public void visit(ElementVisitor v) { v.visit(this) ; } |
| } |