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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  package org.apache.commons.jexl.parser;
17  
18  import org.apache.commons.jexl.JexlContext;
19  
20  /***
21   *  represents an integer
22   *
23   *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
24   *  @version $Id: ASTIntegerLiteral.java,v 1.4 2004/02/28 13:45:20 yoavs Exp $
25   */
26  public class ASTIntegerLiteral extends SimpleNode
27  {
28      Integer val;
29  
30      public ASTIntegerLiteral(int id)
31      {
32          super(id);
33      }
34  
35      public ASTIntegerLiteral(Parser p, int id)
36      {
37          super(p, id);
38      }
39  
40  
41      /*** Accept the visitor. **/
42      public Object jjtAccept(ParserVisitor visitor, Object data)
43      {
44          return visitor.visit(this, data);
45      }
46  
47      /***
48       *  Part of reference resolution - wierd...  in JSTL EL you can
49       *  have
50       *          foo.2
51       *  which is equiv to
52       *          foo[2]
53       *  it appears...
54       */
55      public Object execute(Object o, JexlContext ctx)
56              throws Exception
57      {
58          return ASTArrayAccess.evaluateExpr(o, val);
59      }
60  
61      public Object value(JexlContext jc)
62          throws Exception
63      {
64          return val;
65      }
66  }