001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portlet.imagegallery.util.comparator;
016    
017    import com.liferay.portal.kernel.util.OrderByComparator;
018    import com.liferay.portlet.imagegallery.model.IGImage;
019    
020    /**
021     * @author Brian Wing Shun Chan
022     */
023    public class ImageDescriptionComparator extends OrderByComparator {
024    
025            public static String ORDER_BY_ASC = "description ASC";
026    
027            public static String ORDER_BY_DESC = "description DESC";
028    
029            public static String[] ORDER_BY_FIELDS = {"description"};
030    
031            public ImageDescriptionComparator() {
032                    this(false);
033            }
034    
035            public ImageDescriptionComparator(boolean ascending) {
036                    _ascending = ascending;
037            }
038    
039            @Override
040            public int compare(Object obj1, Object obj2) {
041                    IGImage image1 = (IGImage)obj1;
042                    IGImage image2 = (IGImage)obj2;
043    
044                    int value =
045                            image1.getDescription().toLowerCase().compareTo(
046                                    image2.getDescription().toLowerCase());
047    
048                    if (_ascending) {
049                            return value;
050                    }
051                    else {
052                            return -value;
053                    }
054            }
055    
056            @Override
057            public String getOrderBy() {
058                    if (_ascending) {
059                            return ORDER_BY_ASC;
060                    }
061                    else {
062                            return ORDER_BY_DESC;
063                    }
064            }
065    
066            @Override
067            public String[] getOrderByFields() {
068                    return ORDER_BY_FIELDS;
069            }
070    
071            @Override
072            public boolean isAscending() {
073                    return _ascending;
074            }
075    
076            private boolean _ascending;
077    
078    }