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.orchestra.viewController;
20
21 /**
22 * Each executor configured with the constructor will be asked to execute the
23 * requested method on the bean. The search will end if the executor returns "true".
24 * <p>
25 * As an example, this can be configured to first try an executor that checks whether
26 * the bean implements a specific interface, then try one that uses reflection to find
27 * magic method-names, then try one that looks for annotations.
28 */
29 public class CompositeViewControllerExecutor implements ViewControllerExecutor
30 {
31 private final ViewControllerExecutor[] viewControllerExecutors;
32
33 public CompositeViewControllerExecutor(ViewControllerExecutor[] viewControllerExecutors)
34 {
35 this.viewControllerExecutors = new ViewControllerExecutor[viewControllerExecutors.length];
36 System.arraycopy(viewControllerExecutors, 0, this.viewControllerExecutors, 0, viewControllerExecutors.length);
37 }
38
39
40 public boolean invokeInitView(String beanName, Object bean)
41 {
42 for (int i = 0; i< viewControllerExecutors.length; i++)
43 {
44 if (viewControllerExecutors[i].invokeInitView(beanName, bean))
45 {
46 return true;
47 }
48 }
49
50 return false;
51 }
52
53 public boolean invokePreRenderView(String beanName, Object bean)
54 {
55 for (int i = 0; i< viewControllerExecutors.length; i++)
56 {
57 if (viewControllerExecutors[i].invokePreRenderView(beanName, bean))
58 {
59 return true;
60 }
61 }
62
63 return false;
64 }
65
66 public boolean invokePreProcess(String beanName, Object bean)
67 {
68 for (int i = 0; i< viewControllerExecutors.length; i++)
69 {
70 if (viewControllerExecutors[i].invokePreProcess(beanName, bean))
71 {
72 return true;
73 }
74 }
75
76 return false;
77 }
78 }