1 /*
2 * $Id: DelegatePropertyAccessor.java 1049696 2010-12-15 20:30:10Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 package org.apache.tiles.ognl;
23
24 import java.util.Map;
25
26 import ognl.OgnlContext;
27 import ognl.OgnlException;
28 import ognl.PropertyAccessor;
29
30 /**
31 * Uses a {@link PropertyAccessorDelegateFactory} to delegate the methods to
32 * another {@link PropertyAccessor}.
33 *
34 * @param <T> The type of the accessed root object.
35 * @version $Rev: 1049696 $ $Date: 2010-12-16 07:30:10 +1100 (Thu, 16 Dec 2010) $
36 * @since 2.2.0
37 */
38 public class DelegatePropertyAccessor<T> implements PropertyAccessor {
39
40 /**
41 * The property accessor factory.
42 *
43 * @since 2.2.0
44 */
45 private PropertyAccessorDelegateFactory<T> factory;
46
47 /**
48 * Constructor.
49 *
50 * @param factory The property accessor factory.
51 * @since 2.2.0
52 */
53 public DelegatePropertyAccessor(PropertyAccessorDelegateFactory<T> factory) {
54 this.factory = factory;
55 }
56
57 /** {@inheritDoc} */
58 @SuppressWarnings("unchecked")
59 public Object getProperty(@SuppressWarnings("rawtypes") Map context, Object target, Object name)
60 throws OgnlException {
61 return factory.getPropertyAccessor((String) name, (T) target).getProperty(
62 context, target, name);
63 }
64
65 /** {@inheritDoc} */
66 @SuppressWarnings("unchecked")
67 public void setProperty(@SuppressWarnings("rawtypes") Map context, Object target, Object name,
68 Object value) throws OgnlException {
69 factory.getPropertyAccessor((String) name, (T) target).setProperty(context,
70 target, name, value);
71 }
72
73 /** {@inheritDoc} */
74 @SuppressWarnings("unchecked")
75 public String getSourceAccessor(OgnlContext context, Object target,
76 Object index) {
77 return factory.getPropertyAccessor((String) index, (T) target)
78 .getSourceAccessor(context, target, index);
79 }
80
81 /** {@inheritDoc} */
82 @SuppressWarnings("unchecked")
83 public String getSourceSetter(OgnlContext context, Object target,
84 Object index) {
85 return factory.getPropertyAccessor((String) index, (T) target)
86 .getSourceSetter(context, target, index);
87 }
88 }