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Java > Open Source Codes > com > caucho > ejb > ql > LiteralExpr


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.ejb.ql;
30
31 import com.caucho.config.ConfigException;
32 import com.caucho.util.CharBuffer;
33
34 /**
35  * Literal expression for EJB-QL.
36  */
37 class LiteralExpr extends Expr {
38   // literal value
39 private String JavaDoc _value;
40
41   /**
42    * Creates a new literal expression.
43    *
44    * @param value the string value of the literal
45    * @param type the java type of the literal
46    */
47   LiteralExpr(String JavaDoc value, Class JavaDoc javaType)
48   {
49     _value = value;
50     
51     setJavaType(javaType);
52   }
53
54   /**
55    * Returns the literal value
56    */
57   String JavaDoc getValue()
58   {
59     return _value;
60   }
61
62   /**
63    * Prints the where SQL for this expression
64    *
65    * @param gen the java code generator
66    */
67   void generateWhere(CharBuffer cb)
68   {
69     cb.append(_value);
70   }
71
72   /**
73    * Prints the where SQL for this expression
74    *
75    * @param c the java code generator
76    */
77   void printSelect(CharBuffer cb)
78     throws ConfigException
79   {
80     cb.append(_value);
81   }
82
83   public String JavaDoc toString()
84   {
85     return _value;
86   }
87 }
88
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