/**
 * Copyright (c) 2002-2010 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package org.neo4j.kernel;

import org.neo4j.graphdb.Relationship;
import org.neo4j.graphdb.traversal.TraversalBranch;

enum PrimitiveTypeFetcher
{
    NODE
    {
        @Override
        long getId( TraversalBranch source )
        {
            return source.node().getId();
        }

        @Override
        boolean idEquals( TraversalBranch source, long idToCompare )
        {
            return getId( source ) == idToCompare;
        }
    },
    RELATIONSHIP
    {
        @Override
        long getId( TraversalBranch source )
        {
            return source.relationship().getId();
        }

        @Override
        boolean idEquals( TraversalBranch source, long idToCompare )
        {
            Relationship relationship = source.relationship();
            return relationship != null && relationship.getId() == idToCompare;
        }
    };
    abstract long getId( TraversalBranch source );

    abstract boolean idEquals( TraversalBranch source, long idToCompare );
}