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.asset.util.comparator;
016    
017    import com.liferay.portal.kernel.util.DateUtil;
018    import com.liferay.portal.kernel.util.OrderByComparator;
019    import com.liferay.portlet.asset.model.AssetVocabulary;
020    
021    /**
022     * @author Eudaldo Alonso
023     */
024    public class AssetVocabularyCreateDateComparator
025            extends OrderByComparator<AssetVocabulary> {
026    
027            public static final String ORDER_BY_ASC = "AssetVocabulary.createDate ASC";
028    
029            public static final String ORDER_BY_DESC =
030                    "AssetVocabulary.createDate DESC";
031    
032            public static final String[] ORDER_BY_FIELDS = {"createDate"};
033    
034            public AssetVocabularyCreateDateComparator() {
035                    this(true);
036            }
037    
038            public AssetVocabularyCreateDateComparator(boolean ascending) {
039                    _ascending = ascending;
040            }
041    
042            @Override
043            public int compare(
044                    AssetVocabulary assetVocabulary1, AssetVocabulary assetVocabulary2) {
045    
046                    int value = DateUtil.compareTo(
047                            assetVocabulary1.getCreateDate(), assetVocabulary2.getCreateDate());
048    
049                    if (_ascending) {
050                            return value;
051                    }
052                    else {
053                            return -value;
054                    }
055            }
056    
057            @Override
058            public String getOrderBy() {
059                    if (_ascending) {
060                            return ORDER_BY_ASC;
061                    }
062                    else {
063                            return ORDER_BY_DESC;
064                    }
065            }
066    
067            @Override
068            public String[] getOrderByFields() {
069                    return ORDER_BY_FIELDS;
070            }
071    
072            @Override
073            public boolean isAscending() {
074                    return _ascending;
075            }
076    
077            private final boolean _ascending;
078    
079    }