1 /* Time.java -- Wrapper around java.util.Date
2 Copyright (C) 1999, 2000 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
41 import java.text.SimpleDateFormat;
44 * This class is a wrapper around java.util.Date to allow the JDBC
45 * driver to identify the value as a SQL Timestamp. Note that this
46 * class also adds an additional field for nano-seconds, and so
47 * is not completely identical to <code>java.util.Date</code> as
48 * the <code>java.sql.Date</code> and <code>java.sql.Time</code>
51 * @author Aaron M. Renn (arenn@urbanophile.com)
53 public class Timestamp extends java.util.Date
61 * Used for parsing and formatting this date.
63 // Millisecond will have to be close enough for now.
64 private static SimpleDateFormat parse_sdf =
65 new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSS");
67 private static SimpleDateFormat format_sdf =
68 new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
71 * This is the serialization UID for this class.
73 private static final long serialVersionUID = 3581463369166924961L;
75 /*************************************************************************/
82 * @serial The nanosecond value for this object
86 /*************************************************************************/
93 * This method returns a new instance of this class by parsing a
94 * date in JDBC format into a Java date.
96 * @param str The string to parse.
98 * @return The resulting <code>java.sql.Timestamp</code> value.
100 public static Timestamp
105 Date d = (Date)parse_sdf.parseObject(str);
106 return(new Timestamp(d.getTime()));
114 /*************************************************************************/
121 * This method initializes a new instance of this class with the
122 * specified year, month, and day.
124 * @param year The year for this Timestamp (year - 1900)
125 * @param month The month for this Timestamp (0-11)
126 * @param day The day for this Timestamp (1-31)
127 * @param hour The hour for this Timestamp (0-23)
128 * @param minute The minute for this Timestamp (0-59)
129 * @param second The second for this Timestamp (0-59)
130 * @param nanos The nanosecond value for this Timestamp (0 to 999,999,9999)
135 Timestamp(int year, int month, int day, int hour, int minute, int second,
138 super(year, month, day, hour, minute, second);
143 /*************************************************************************/
146 * This method initializes a new instance of this class with the
147 * specified time value representing the number of seconds since
148 * Jan 1, 1970 at 12:00 midnight GMT.
150 * @param time The time value to intialize this <code>Time</code> to.
158 /*************************************************************************/
165 * This method returns this date in JDBC format.
167 * @return This date as a string.
172 return(format_sdf.format(this) + "." + getNanos());
175 /*************************************************************************/
178 * This method returns the nanosecond value for this object.
180 * @return The nanosecond value for this object.
188 /*************************************************************************/
191 * This method sets the nanosecond value for this object.
193 * @param nanos The nanosecond value for this object.
201 /*************************************************************************/
204 * This methods tests whether this object is earlier than the specified
207 * @param ts The other <code>Timestamp</code> to test against.
209 * @return <code>true</code> if this object is earlier than the other object,
210 * <code>false</code> otherwise.
215 if (ts.getTime() > getTime())
218 if (ts.getNanos() > getNanos())
224 /*************************************************************************/
227 * This methods tests whether this object is later than the specified
230 * @param ts The other <code>Timestamp</code> to test against.
232 * @return <code>true</code> if this object is later than the other object,
233 * <code>false</code> otherwise.
238 if (ts.getTime() < getTime())
241 if (ts.getNanos() < getNanos())
247 /*************************************************************************/
250 * This method these the specified <code>Object</code> for equality
251 * against this object. This will be true if an only if the specified
252 * object is an instance of <code>Timestamp</code> and has the same
255 * @param obj The object to test against for equality.
257 * @return <code>true</code> if the specified object is equal to this
258 * object, <code>false</code> otherwise.
266 if (!(obj instanceof Timestamp))
269 return(equals((Timestamp)obj));
272 /*************************************************************************/
275 * This method tests the specified timestamp for equality against this
276 * object. This will be true if and only if the specified object is
277 * not <code>null</code> and contains all the same time value fields
280 * @param ts The <code>Timestamp</code> to test against for equality.
282 * @return <code>true</code> if the specified object is equal to this
283 * object, <code>false</code> otherwise.
291 if (ts.getTime() != getTime())
294 if (ts.getNanos() != getNanos())