/**
 * Copyright (c) 2002-2013 "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 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel;

import org.neo4j.graphdb.traversal.BranchOrderingPolicy;
import org.neo4j.graphdb.traversal.BranchSelector;
import org.neo4j.graphdb.traversal.TraversalBranch;

public enum CommonBranchOrdering implements BranchOrderingPolicy
{
    PREORDER_DEPTH_FIRST
    {
        public BranchSelector create( TraversalBranch startSource )
        {
            return new PreorderDepthFirstSelector( startSource );
        }
    },
    POSTORDER_DEPTH_FIRST
    {
        public BranchSelector create( TraversalBranch startSource )
        {
            return new PostorderDepthFirstSelector( startSource );
        }
    },
    PREORDER_BREADTH_FIRST
    {
        public BranchSelector create( TraversalBranch startSource )
        {
            return new PreorderBreadthFirstSelector( startSource );
        }
    },
    POSTORDER_BREADTH_FIRST
    {
        public BranchSelector create( TraversalBranch startSource )
        {
            return new PostorderBreadthFirstSelector( startSource );
        }
    };
}