CachedFacesBackingInfo


1   /*
2   * Copyright 2004 The Apache Software Foundation.
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, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  * $Header:$
17  */
18  package org.apache.beehive.netui.pageflow.internal;
19  
20  import javax.servlet.ServletContext  ;
21  import java.lang.reflect.Field  ;
22  
23  
24  /**
25   * Information that is cached per pageflow class.
26   */ 
27  public class CachedFacesBackingInfo
28          extends CachedSharedFlowRefInfo
29  {
30      /**
31       * The PageFlowController-initialized member field -- may or may not be present.
32       */ 
33      private Field   _pageFlowMemberField;
34      
35      
36      public CachedFacesBackingInfo( Class   facesBackingClass, ServletContext   servletContext )
37      {
38          Field  [] fields = facesBackingClass.getDeclaredFields();
39          AnnotationReader annReader = AnnotationReader.getAnnotationReader( facesBackingClass, servletContext );
40          
41          for ( int i = 0; i < fields.length; i++ )
42          {
43              Field   field = fields[i];
44              
45              if ( annReader.getJpfAnnotation( field, "PageFlowField" ) != null )
46              {
47                  _pageFlowMemberField = field;
48                  _pageFlowMemberField.setAccessible( true );
49              }
50          }
51          
52          initSharedFlowFields( annReader, fields );
53      }
54      
55      public Field   getPageFlowMemberField()
56      {
57          return _pageFlowMemberField;
58      }
59  }
60  
61
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