001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.documentlibrary.util.comparator;
016    
017    import com.liferay.portal.kernel.repository.model.FileVersion;
018    
019    import java.util.Comparator;
020    
021    /**
022     * @author Iv??n Zaera
023     */
024    public class FileVersionVersionComparator implements Comparator<FileVersion> {
025    
026            public FileVersionVersionComparator() {
027                    this(false);
028            }
029    
030            public FileVersionVersionComparator(boolean ascending) {
031                    _versionNumberComparator = new VersionNumberComparator(ascending);
032            }
033    
034            @Override
035            public int compare(FileVersion fileVersion1, FileVersion fileVersion2) {
036                    return _versionNumberComparator.compare(
037                            fileVersion1.getVersion(), fileVersion2.getVersion());
038            }
039    
040            public boolean isAscending() {
041                    return _versionNumberComparator.isAscending();
042            }
043    
044            private final VersionNumberComparator _versionNumberComparator;
045    
046    }