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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.render;
20  
21  import javax.faces.component.UIComponent;
22  import javax.faces.component.behavior.ClientBehavior;
23  import javax.faces.component.behavior.ClientBehaviorContext;
24  import javax.faces.context.FacesContext;
25  
26  /**
27   * @author Simon Lessard (latest modification by $Author: bommel $)
28   * @version $Revision: 1187701 $ $Date: 2011-10-22 07:21:54 -0500 (Sat, 22 Oct 2011) $
29   * 
30   * @since 2.0
31   */
32  public abstract class ClientBehaviorRenderer
33  {
34      public void decode(FacesContext context, UIComponent component, ClientBehavior behavior)
35      {
36          //default impl won't do anything...implementing classes will do the actual decoding.  
37          //just check for null args
38          if(context == null)
39          {
40              throw new NullPointerException("context argument must not be null");
41          }
42          if(component == null)
43          {
44              throw new NullPointerException("component argument must not be null");
45          }
46          if(behavior == null)
47          {
48              throw new NullPointerException("behavior argument must not be null");
49          }
50      }
51  
52      public String getScript(ClientBehaviorContext behaviorContext, ClientBehavior behavior)
53      {
54          // default implementation returns null per the javadoc
55          return null;
56      }
57  }