1 /*********************************************************************
2 *
3 * Copyright (C) 2002 Andrew Khan
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ***************************************************************************/
19
20 package jxl.write;
21
22 import java.text.SimpleDateFormat;
23
24 import jxl.biff.DisplayFormat;
25 import jxl.write.biff.DateFormatRecord;
26
27 /**
28 * A custom user defined number format which may be instantiated within user
29 * applications in order to present date and time values in the appropriate
30 * format.
31 * The string format used to create a DateFormat adheres to the standard
32 * java specification, and JExcelApi makes the necessary modifications so
33 * that it is rendered as its nearest equivalent in Excel.
34 * Once created, this may be used within a CellFormat object, which in turn
35 * is a parameter passed to the constructor of the DateTime cell
36 */
37 public class DateFormat extends DateFormatRecord implements DisplayFormat
38 {
39 /**
40 * Constructor. The date format that is passed should comply to the standard
41 * Java date formatting conventions
42 *
43 * @param format the date format
44 */
45 public DateFormat(String format)
46 {
47 super(format);
48
49 // Verify that the format is valid
50 SimpleDateFormat df = new SimpleDateFormat(format);
51 }
52 }
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