1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.blank.validation;
20
21 import org.apache.myfaces.blank.domain.Person;
22
23 import javax.validation.ConstraintValidator;
24 import javax.validation.ConstraintValidatorContext;
25
26 public class NameConstraintValidator implements
27 ConstraintValidator<NameConstraint, org.apache.myfaces.blank.domain.Person>
28 {
29 public void initialize(NameConstraint differentName)
30 {
31 }
32
33 public boolean isValid(Person person, ConstraintValidatorContext constraintValidatorContext)
34 {
35 if(person == null || isEmpty(person.getFirstName()) || isEmpty(person.getLastName()))
36 {
37 return true;
38 }
39
40 return !(person.getFirstName().equals(person.getLastName()));
41 }
42
43 private boolean isEmpty(String value)
44 {
45 return value == null || "".equals(value);
46 }
47 }