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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  package org.apache.myfaces.config.impl.digester.elements;
20  
21  import java.io.Serializable;
22  
23  import javax.faces.context.FacesContext;
24  import javax.faces.el.ValueBinding;
25  
26  import org.apache.myfaces.config.impl.digester.elements.ListEntries;
27  import org.apache.myfaces.util.ContainerUtils;
28  
29  
30  /**
31   * @author <a href="mailto:oliver@rossmueller.com">Oliver Rossmueller</a> (latest modification by $Author: lu4242 $)
32   * @author Anton Koinov
33   *
34   * @version $Revision: 1349231 $ $Date: 2012-06-12 05:18:19 -0500 (Tue, 12 Jun 2012) $
35   */
36  public class ManagedProperty extends org.apache.myfaces.config.element.ManagedProperty implements Serializable
37  {
38      private static final ValueBinding DUMMY_VB = new DummyValueBinding();
39  
40      private int                       _type    = TYPE_UNKNOWN;
41      private String                    _propertyName;
42      private String                    _propertyClass;
43      private transient ValueBinding    _valueBinding;
44      private String                    _value;
45      private org.apache.myfaces.config.element.MapEntries                _mapEntries;
46      private org.apache.myfaces.config.element.ListEntries               _listEntries;
47  
48      public int getType()
49      {
50          return _type;
51      }
52      
53      public org.apache.myfaces.config.element.MapEntries getMapEntries()
54      {
55          return _mapEntries;
56      }
57      
58      public void setMapEntries(org.apache.myfaces.config.element.MapEntries mapEntries)
59      {
60          _mapEntries = mapEntries;
61          _type = TYPE_MAP;
62      }
63      
64      public org.apache.myfaces.config.element.ListEntries getListEntries()
65      {
66          return _listEntries;
67      }
68      
69      public void setListEntries(ListEntries listEntries)
70      {
71          _listEntries = listEntries;
72          _type = TYPE_LIST;
73      }
74      
75      public String getPropertyName()
76      {
77          return _propertyName;
78      }
79      
80      public void setPropertyName(String propertyName)
81      {
82          _propertyName = propertyName;
83      }
84      
85      public String getPropertyClass()
86      {
87          return _propertyClass;
88      }
89      
90      public void setPropertyClass(String propertyClass)
91      {
92          _propertyClass = propertyClass;
93      }
94      
95      public boolean isNullValue()
96      {
97          return _type == TYPE_NULL;
98      }
99      
100     public void setNullValue()
101     {
102         _type = TYPE_NULL;
103     }
104     
105     public void setValue(String value)
106     {
107         _value = value;
108         _type = TYPE_VALUE;
109     }
110 
111     public String getValue()
112     {
113         return _value;
114     }
115     
116     public Object getRuntimeValue(FacesContext facesContext)
117     {
118         getValueBinding(facesContext);
119 
120         return (_valueBinding == DUMMY_VB)
121             ? _value : _valueBinding.getValue(facesContext);
122     }
123     
124     public ValueBinding getValueBinding(FacesContext facesContext)
125     {
126         if (_valueBinding == null)
127         {
128             _valueBinding =
129                 isValueReference()
130                 ? facesContext.getApplication().createValueBinding(_value)
131                 : DUMMY_VB;
132         }
133         return _valueBinding;
134     }
135     
136     public boolean isValueReference()
137     {
138         return ContainerUtils.isValueReference(_value);
139     }
140     
141     private static class DummyValueBinding extends ValueBinding
142     {
143         @Override
144         public String getExpressionString()
145         {
146             throw new UnsupportedOperationException();
147         }
148 
149         @Override
150         public Class<?> getType(FacesContext facesContext)
151         {
152             throw new UnsupportedOperationException();
153         }
154 
155         @Override
156         public Object getValue(FacesContext facesContext)
157         {
158             throw new UnsupportedOperationException();
159         }
160 
161         @Override
162         public boolean isReadOnly(FacesContext facesContext)
163         {
164             throw new UnsupportedOperationException();
165         }
166 
167         @Override
168         public void setValue(FacesContext facesContext, Object value)
169         {
170             throw new UnsupportedOperationException();
171         }
172     }
173 }