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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 javax.faces.component;
20  
21  import java.io.Serializable;
22  
23  /**
24   * @author Simon Lessard (latest modification by $Author: bommel $)
25   * @version $Revision: 1187700 $ $Date: 2011-10-22 12:19:37 +0000 (Sat, 22 Oct 2011) $
26   * 
27   * @since 2.0
28   */
29  public interface StateHelper extends StateHolder
30  {
31      public void add(Serializable key, Object value);
32  
33      public Object eval(Serializable key);
34  
35      public Object eval(Serializable key, Object defaultValue);
36  
37      public Object get(Serializable key);
38  
39      public Object put(Serializable key, Object value);
40  
41      public Object put(Serializable key, String mapKey, Object value);
42  
43      public Object remove(Serializable key);
44  
45      public Object remove(Serializable key, Object valueOrKey);
46  }