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Java > Open Source Codes > com > mckoi > database > TDateType


1 /**
2  * com.mckoi.database.TDateType 31 Jul 2002
3  *
4  * Mckoi SQL Database ( http://www.mckoi.com/database )
5  * Copyright (C) 2000, 2001, 2002 Diehl and Associates, Inc.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * Version 2 as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License Version 2 for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * Version 2 along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19  *
20  * Change Log:
21  *
22  *
23  */
24
25 package com.mckoi.database;
26
27 import java.util.Date JavaDoc;
28
29 /**
30  * An implementation of TType for date objects.
31  *
32  * @author Tobias Downer
33  */
34
35 public class TDateType extends TType {
36
37   static final long serialVersionUID = 1494137367081481985L;
38
39   /**
40    * Constructs the type.
41    */
42   public TDateType(int sql_type) {
43     super(sql_type);
44   }
45
46   public boolean comparableTypes(TType type) {
47     return (type instanceof TDateType);
48   }
49   
50   public int compareObs(Object JavaDoc ob1, Object JavaDoc ob2) {
51     return ((Date JavaDoc) ob1).compareTo((Date JavaDoc) ob2);
52   }
53
54   public int calculateApproximateMemoryUse(Object JavaDoc ob) {
55     return 4 + 8;
56   }
57
58   public Class JavaDoc javaClass() {
59     return Date JavaDoc.class;
60   }
61
62 }
63
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