001/**
002 * Copyright 2005-2016 The Kuali Foundation
003 *
004 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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 */
016package org.kuali.rice.kns.web.comparator;
017
018import java.io.Serializable;
019import java.util.Comparator;
020
021/**
022 * @deprecated KNS Struts deprecated, use KRAD and the Spring MVC framework.
023 */
024@Deprecated
025public class NullCellComparator implements Comparator, Serializable {
026
027    public int compare(Object o1, Object o2) {
028        if (o1 == null && o2 == null) {
029            return 0;
030        }
031        if (o1 == null) {
032            return -1;
033        }
034        else if (o2 == null) {
035            return 1;
036        }
037        else {
038            // probably won't go into this code segment, but doing it just in case
039            return CellComparatorHelper.getAppropriateComparatorForPropertyClass(o1.getClass()).compare(o1, o2);
040        }
041    }
042
043}