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1   /*
2    * Copyright 2002,2004 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  
17  package org.apache.commons.jexl.parser;
18  
19  import org.apache.commons.jexl.JexlContext;
20  
21  /***
22   *  Fill in the blanks for how this is to work
23   *
24   *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
25   */
26  public class ASTNullLiteral extends SimpleNode
27  {
28      public ASTNullLiteral(int id)
29      {
30          super(id);
31      }
32  
33      public ASTNullLiteral(Parser p, int id)
34      {
35          super(p, id);
36      }
37  
38  
39      /*** Accept the visitor. **/
40      public Object jjtAccept(ParserVisitor visitor, Object data)
41      {
42          return visitor.visit(this, data);
43      }
44  
45      public Object value(JexlContext context)
46      {
47        return null;
48      }
49  }