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.application;
20
21 import java.util.Map;
22 import java.util.Set;
23
24 import javax.faces.application.ConfigurableNavigationHandler;
25 import javax.faces.application.NavigationCase;
26 import javax.faces.application.NavigationHandler;
27 import javax.faces.context.FacesContext;
28
29 /**
30 * This class is used as a double wrapper for NavigationHandler
31 * and ConfigurableNavigationHandler to be backwards compatible
32 * to the pre JSF 2.0 NavigationHandlers which are not
33 * ConfigurableNavigationHandlers (since JSF 2.0 the standard
34 * NavigationHandler implementation has to inherit from
35 * ConfigurableNavigationHandler).
36 *
37 * It just passes through handleNavigation() to the wrapped
38 * NavigationHandler and getNavigationCase() and getNavigationCases()
39 * to the wrapped ConfigurableNavigationHandler.
40 *
41 * @author Jakob Korherr (latest modification by $Author$)
42 * @version $Revision$ $Date$
43 */
44 public class BackwardsCompatibleNavigationHandlerWrapper
45 extends ConfigurableNavigationHandler
46 {
47
48 private NavigationHandler _wrapped;
49 private ConfigurableNavigationHandler _doubleWrapped;
50
51 public BackwardsCompatibleNavigationHandlerWrapper(NavigationHandler wrapped,
52 ConfigurableNavigationHandler doubleWrapped)
53 {
54 _wrapped = wrapped;
55 _doubleWrapped = doubleWrapped;
56 }
57
58 @Override
59 public NavigationCase getNavigationCase(FacesContext context,
60 String fromAction, String outcome)
61 {
62 return _doubleWrapped.getNavigationCase(context, fromAction, outcome);
63 }
64
65 @Override
66 public Map<String, Set<NavigationCase>> getNavigationCases()
67 {
68 return _doubleWrapped.getNavigationCases();
69 }
70
71 @Override
72 public void handleNavigation(FacesContext context, String fromAction, String outcome)
73 {
74 _wrapped.handleNavigation(context, fromAction, outcome);
75 }
76
77 }