1 /*
2 * Copyright 2009 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.kuali.ole.sys.businessobject;
17
18 import java.util.Comparator;
19
20 import org.kuali.rice.krad.util.ObjectUtils;
21
22 /**
23 * The standard comparator for AccountingLine objects
24 */
25 public class AccountingLineComparator implements Comparator<AccountingLine> {
26
27 /**
28 * Compares two accounting lines based on their sequence number
29 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
30 */
31 public int compare(AccountingLine rosencrantz, AccountingLine guildenstern) {
32 if (ObjectUtils.isNotNull(rosencrantz) && ObjectUtils.isNotNull(guildenstern))
33 if (ObjectUtils.isNotNull(rosencrantz.getSequenceNumber()) && ObjectUtils.isNotNull(guildenstern.getSequenceNumber()))
34 return rosencrantz.getSequenceNumber().compareTo(guildenstern.getSequenceNumber());
35 return 0;
36 }
37
38 }