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Java > Open Source Codes > com > caucho > amber > expr > fun > CurrentDateFunExpr


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 Software Foundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.amber.expr.fun;
30
31 import com.caucho.amber.query.QueryParser;
32 import com.caucho.amber.type.SqlDateType;
33 import com.caucho.amber.type.Type;
34 import com.caucho.util.CharBuffer;
35 import com.caucho.util.L10N;
36
37
38 /**
39  * CURRENT_DATE function expression
40  */
41 public class CurrentDateFunExpr extends DateTimeFunExpr {
42   private static final L10N L = new L10N(CurrentDateFunExpr.class);
43
44   /**
45    * Creates a new expression
46    */
47   protected CurrentDateFunExpr(QueryParser parser)
48   {
49     super(parser, "current_date", null, false);
50   }
51
52   public static FunExpr create(QueryParser parser)
53   {
54     return new CurrentDateFunExpr(parser);
55   }
56
57   /**
58    * Generates the where expression.
59    */
60   public void generateWhere(CharBuffer cb)
61   {
62     cb.append("current_date");
63   }
64
65   /**
66    * Generates the (update) where expression.
67    */
68   public void generateUpdateWhere(CharBuffer cb)
69   {
70     generateWhere(cb);
71   }
72
73   /**
74    * Returns the expr type.
75    */
76   public Type getType()
77   {
78     return SqlDateType.create();
79   }
80 }
81
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