1 /*
2 * Copyright 2004-2008 the Seasar Foundation and the Others.
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,
13 * either express or implied. See the License for the specific language
14 * governing permissions and limitations under the License.
15 */
16 package org.seasar.cubby.converter.impl;
17
18 import org.seasar.cubby.converter.ConversionHelper;
19
20
21 /**
22 * 列挙定数へ変換するコンバータです。
23 *
24 * @author baba
25 * @since 1.1.0
26 */
27 public class EnumConverter extends AbstractConverter {
28
29 /**
30 * {@inheritDoc}
31 */
32 public Class<?> getObjectType() {
33 return Enum.class;
34 }
35
36 /**
37 * {@inheritDoc}
38 */
39 @SuppressWarnings("unchecked")
40 public Object convertToObject(final Object value, final Class<?> objectType, ConversionHelper helper) {
41 if (value == null) {
42 return null;
43 }
44 final String name = value.toString();
45 return Enum.valueOf((Class<? extends Enum>) objectType, name);
46 }
47
48 /**
49 * {@inheritDoc}
50 */
51 public String convertToString(final Object value, ConversionHelper helper) {
52 if (value == null) {
53 return null;
54 }
55 return Enum.class.cast(value).name();
56 }
57
58 }