Literal


1   /*
2    * Copyright 1999-2004 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.taglibs.standard.lang.jstl;
18  
19  import java.util.Map  ;
20  
21  /**
22   *
23   * <p>An expression representing a literal value
24   * 
25   * @author Nathan Abramson - Art Technology Group
26   * @author Shawn Bayern
27   * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: pierred $
28   **/
29  
30  public abstract class Literal
31    extends Expression
32  {
33    //-------------------------------------
34    // Properties
35    //-------------------------------------
36    // property value
37  
38    Object   mValue;
39    public Object   getValue ()
40    { return mValue; }
41    public void setValue (Object   pValue)
42    { mValue = pValue; }
43  
44    //-------------------------------------
45    /**
46     *
47     * Constructor
48     **/
49    public Literal (Object   pValue)
50    {
51      mValue = pValue;
52    }
53  
54    //-------------------------------------
55    // Expression methods
56    //-------------------------------------
57    /**
58     *
59     * Evaluates to the literal value
60     **/
61    public Object   evaluate (Object   pContext,
62                VariableResolver pResolver,
63                Map   functions,
64                String   defaultPrefix,
65                Logger pLogger)
66      throws ELException
67    {
68      return mValue;
69    }
70  
71    //-------------------------------------
72  }
73
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