001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.core.model;
023
024import java.io.Serializable;
025import java.util.Comparator;
026
027/**
028 * @author <a href="mailto:gracinet@nuxeo.com">Georges Racinet</a>
029 */
030public class PathComparator implements Comparator<Document>, Serializable {
031
032    private static final long serialVersionUID = 1L;
033
034    @Override
035    public int compare(Document o1, Document o2) {
036        // The character "/" should be considered as the highest discriminant to
037        // sort paths. So we replace it with the first unicode character
038        String path1 = o1.getPath().replace("/", "\u0000");
039        return path1.compareTo(o2.getPath().replace("/", "\u0000"));
040    }
041
042}