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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  
20  package org.apache.myfaces.orchestra.viewController;
21  
22  /**
23   * An interface for use with the InterfaceViewControllerExecutor.
24   * <p>
25   * When the InterfaceViewControllerExecutor has been selected as the technique for mapping
26   * lifecycle events onto bean methods, then the target bean must implement this interface
27   * in order to get callbacks.
28   * <p>
29   * Note that the expression "view controller bean" is used to generally refer to an object
30   * that can handle lifecycle events for a view. Such beans may implement this interface, but
31   * may not - they might be accessed via the ReflectiveViewControllerExecutor or other
32   * implementations that do not require this interface. 
33   */
34  public interface ViewController
35  {
36      public void initView();
37  
38      public void preProcess();
39      
40      public void preRenderView();
41  }