View Javadoc

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.tobago.context;
21  
22  
23  import javax.faces.component.StateHolder;
24  import javax.faces.context.FacesContext;
25  import java.io.Serializable;
26  
27  public class TransientStateHolder implements StateHolder, Serializable {
28  
29    private static final long serialVersionUID = -5260593843885016768L;
30  
31    private transient Object object;
32  
33    public TransientStateHolder() {
34    }
35  
36    public TransientStateHolder(final Object object) {
37      this.object = object;
38    }
39  
40    public Object saveState(final FacesContext context) {
41      // do nothing
42      return null;
43    }
44  
45    public void put(final Object object) {
46      this.object = object;
47    }
48  
49    public boolean isEmpty() {
50      return object == null;
51    }
52  
53    public Object get() {
54      return object;
55    }
56  
57    public void restoreState(final FacesContext context, final Object state) {
58      // do nothing
59    }
60  
61    public boolean isTransient() {
62      return true;
63    }
64  
65    public void setTransient(final boolean newTransientValue) {
66      // do nothing
67    }
68  
69  }