1 /**
2 * Copyright 2010-2012 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.common.util.nullify;
17
18 import org.apache.commons.lang3.StringUtils;
19 import org.kuali.common.util.property.Constants;
20
21 public class NullUtils {
22
23 public static final boolean isNull(String s) {
24 if (s == null) {
25 return true;
26 } else {
27 return StringUtils.equalsIgnoreCase(Constants.NULL, s);
28 }
29 }
30
31 public static final boolean isNone(String s) {
32 return StringUtils.equalsIgnoreCase(Constants.NONE, s);
33 }
34
35 public static final boolean isNullOrNone(String s) {
36 return isNull(s) || isNone(s);
37 }
38 }