/*
 * 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.path;

import org.apache.jena.graph.Node;
import org.apache.jena.sparql.util.Iso;
import org.apache.jena.sparql.util.NodeIsomorphismMap;

public class P_Link extends P_Path0 {
    public P_Link(Node n) {
        super(n);
    }

    @Override
    public boolean isForward() {
        return true;
    }

    @Override
    public void visit(PathVisitor visitor) {
        visitor.visit(this);
    }

    @Override
    public boolean equalTo(Path path2, NodeIsomorphismMap isoMap) {
        if ( !(path2 instanceof P_Link) )
            return false;
        P_Link other = (P_Link)path2;
        return Iso.nodeIso(node, other.node, isoMap);
    }

    @Override
    public int hashCode() {
        return node.hashCode() ^ hashLink;
    }
}
