01: /*
02: * Copyright 2006 The Kuali Foundation.
03: *
04: * Licensed under the Educational Community License, Version 1.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.opensource.org/licenses/ecl1.php
09: *
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.module.gl.util;
17:
18: /**
19: * Provides helper methods related to evaluating Strings
20: */
21: public class StringHelper extends ObjectHelper {
22:
23: /**
24: * This method returns true if String object is empty and NOT null
25: *
26: * @param s evaluated String
27: * @return true if String object is empty and NOT null
28: */
29: static public boolean isEmpty(String s) {
30: return (s != null) && "".equals(s);
31: }
32:
33: /**
34: * This method returns true if String object is null or empty
35: * @param s evaluated String
36: * @return true if String object is null or empty
37: */
38: static public boolean isNullOrEmpty(String s) {
39: return (s == null) || isEmpty(s);
40: }
41: }
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