1 /*
2 * Copyright 2006 Werner Guttmann
3 *
4 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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.exolab.castor.xml.validators;
17
18 import org.exolab.castor.xml.TypeValidator;
19 import org.exolab.castor.xml.ValidationContext;
20 import org.exolab.castor.xml.ValidationException;
21
22 /**
23 * The ID Validation class.
24 *
25 * @author <a href="mailto:werner DOT guttmann AT gmx DOT net">Werner Guttman</a>
26 * @version $Revision: 5951 $ $Date: 2003-03-03 02:57:21 -0700 (Mon, 03 Mar 2003) $
27 */
28 public class IdValidator extends StringValidator implements TypeValidator {
29
30 /**
31 * Creates a new IdValidator with no restrictions.
32 */
33 public IdValidator() {
34 super();
35 } //-- IdValidator
36
37 /**
38 * Validates the given Object.
39 *
40 * @param value
41 * the string to validate
42 * @param context
43 * the ValidationContext
44 * @throws ValidationException if the object fails validation.
45 */
46 public void validate(final String value, final ValidationContext context)
47 throws ValidationException {
48 super.validate(value, context);
49 } //-- validate
50
51 /**
52 * Validates the given Object.
53 *
54 * @param object the Object to validate
55 * @throws ValidationException if the object fails validation.
56 */
57 public void validate(final Object object) throws ValidationException {
58 validate(object, (ValidationContext) null);
59 } //-- validate
60
61 /**
62 * Validates the given Object.
63 *
64 * @param object the Object to validate
65 * @param context the ValidationContext
66 * @throws ValidationException if the object fails validation.
67 */
68 public void validate(final Object object, final ValidationContext context)
69 throws ValidationException {
70 if (object == null) {
71 String err = "IdValidator cannot validate a null object.";
72 throw new ValidationException(err);
73 }
74
75 String value = null;
76 if (!(object instanceof String)) {
77 throw new ValidationException("IDs should be of type String");
78 }
79
80 value = (String) object;
81
82 if (value.equals("")) {
83 String err = "Invalid ID value: '' is not a valid value.";
84 throw new ValidationException(err);
85 }
86
87 context.addID(value);
88
89 // validate(value, context);
90 } //-- validate
91
92 } //-- IdValidator