1 /**
2 * Copyright 2005-2011 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.rice.krad.datadictionary.validation.constraint;
17
18 import org.apache.commons.lang.StringUtils;
19
20 /**
21 * This abstract class extends from ValidCharactersConstraint. Its subclasses contain a regex that
22 * is built out with flags that can be turned off and on. All ValidCharactersPatternConstraints
23 * allow a certain set of characters to be repeated multiple times
24 * @author Kuali Rice Team (rice.collab@kuali.org)
25 */
26 public abstract class ValidCharactersPatternConstraint extends ValidCharactersConstraint {
27 /**
28 * Warning: This value should NOT be set on ValidCharactersPatternConstraints as the value is
29 * built dynamically from the flags set on the constraint - if this value IS set it will
30 * override any automatic generation and only use that which was set through this method for
31 * server side validation
32 *
33 * @see org.kuali.rice.krad.datadictionary.validation.constraint.ValidCharactersConstraint#setValue(java.lang.String)
34 */
35 @Override
36 public void setValue(String value) {
37 super.setValue(value);
38 }
39
40 /**
41 * @see org.kuali.rice.krad.datadictionary.validation.constraint.ValidCharactersConstraint#getValue()
42 */
43 @Override
44 public String getValue() {
45 if (StringUtils.isEmpty(value)) {
46 return "^" + getRegexString() + "*$";
47 }
48 return value;
49
50 }
51
52 /**
53 * This method returns a string representing a regex with characters to match, this string
54 * should not include the start(^) and end($) symbols or any length related symbols (*, {0,},
55 * etc)
56 *
57 * @return
58 */
59 abstract protected String getRegexString();
60
61 }