001    /**
002     * Copyright (c) 2000-2013 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.dynamicdatamapping.util.comparator;
016    
017    import com.liferay.portal.kernel.util.OrderByComparator;
018    import com.liferay.portlet.dynamicdatamapping.model.DDMStructure;
019    
020    /**
021     * @author Eduardo Garcia
022     */
023    public class StructureIdComparator extends OrderByComparator {
024    
025            public static final String ORDER_BY_ASC = "DDMStructure.structureId ASC";
026    
027            public static final String ORDER_BY_DESC = "DDMStructure.structureId DESC";
028    
029            public static final String[] ORDER_BY_FIELDS = {"structureId"};
030    
031            public StructureIdComparator() {
032                    this(false);
033            }
034    
035            public StructureIdComparator(boolean ascending) {
036                    _ascending = ascending;
037            }
038    
039            @Override
040            public int compare(Object obj1, Object obj2) {
041                    DDMStructure structure1 = (DDMStructure)obj1;
042                    DDMStructure structure2 = (DDMStructure)obj2;
043    
044                    long structureId1 = structure1.getStructureId();
045                    long structureId2 = structure2.getStructureId();
046    
047                    int value = 0;
048    
049                    if (structureId1 < structureId2) {
050                            value = -1;
051                    }
052                    else if (structureId1 > structureId2) {
053                            value = 1;
054                    }
055    
056                    if (_ascending) {
057                            return value;
058                    }
059                    else {
060                            return -value;
061                    }
062            }
063    
064            @Override
065            public String getOrderBy() {
066                    if (_ascending) {
067                            return ORDER_BY_ASC;
068                    }
069                    else {
070                            return ORDER_BY_DESC;
071                    }
072            }
073    
074            @Override
075            public String[] getOrderByFields() {
076                    return ORDER_BY_FIELDS;
077            }
078    
079            @Override
080            public boolean isAscending() {
081                    return _ascending;
082            }
083    
084            private boolean _ascending;
085    
086    }