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
55 static final long serialVersionUID = 3581463369166924961L;
58 * Used for parsing and formatting this date.
60 // Millisecond will have to be close enough for now.
61 private static SimpleDateFormat parse_sdf =
62 new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSS");
64 private static SimpleDateFormat format_sdf =
65 new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
68 * The nanosecond value for this object
73 * This method returns a new instance of this class by parsing a
74 * date in JDBC format into a Java date.
76 * @param str The string to parse.
77 * @return The resulting <code>java.sql.Timestamp</code> value.
79 public static Timestamp valueOf(String str)
83 Date d = (Date) parse_sdf.parseObject(str);
84 return new Timestamp(d.getTime());
93 * This method initializes a new instance of this class with the
94 * specified year, month, and day.
96 * @param year The year for this Timestamp (year - 1900)
97 * @param month The month for this Timestamp (0-11)
98 * @param day The day for this Timestamp (1-31)
99 * @param hour The hour for this Timestamp (0-23)
100 * @param minute The minute for this Timestamp (0-59)
101 * @param second The second for this Timestamp (0-59)
102 * @param nanos The nanosecond value for this Timestamp (0 to 999,999,9999)
105 public Timestamp(int year, int month, int day, int hour, int minute,
106 int second, int nanos)
108 super(year, month, day, hour, minute, second);
113 * This method initializes a new instance of this class with the
114 * specified time value representing the number of seconds since
115 * Jan 1, 1970 at 12:00 midnight GMT.
117 * @param time The time value to intialize this <code>Time</code> to.
119 public Timestamp(long date)
125 * This method returns this date in JDBC format.
127 * @return This date as a string.
129 public String toString()
131 return format_sdf.format(this) + "." + getNanos();
135 * This method returns the nanosecond value for this object.
136 * @return The nanosecond value for this object.
138 public int getNanos()
144 * This method sets the nanosecond value for this object.
146 * @param nanos The nanosecond value for this object.
148 public void setNanos(int nanos)
154 * This methods tests whether this object is earlier than the specified
157 * @param ts The other <code>Timestamp</code> to test against.
158 * @return <code>true</code> if this object is earlier than the other object,
159 * <code>false</code> otherwise.
161 public boolean before(Timestamp ts)
163 if (ts.getTime() > getTime())
166 if (ts.getNanos() > getNanos())
173 * This methods tests whether this object is later than the specified
176 * @param ts The other <code>Timestamp</code> to test against.
178 * @return <code>true</code> if this object is later than the other object,
179 * <code>false</code> otherwise.
181 public boolean after(Timestamp ts)
183 if (ts.getTime() < getTime())
186 if (ts.getNanos() < getNanos())
193 * This method these the specified <code>Object</code> for equality
194 * against this object. This will be true if an only if the specified
195 * object is an instance of <code>Timestamp</code> and has the same
198 * @param obj The object to test against for equality.
200 * @return <code>true</code> if the specified object is equal to this
201 * object, <code>false</code> otherwise.
203 public boolean equals(Object obj)
208 if (!(obj instanceof Timestamp))
211 return equals((Timestamp) obj);
215 * This method tests the specified timestamp for equality against this
216 * object. This will be true if and only if the specified object is
217 * not <code>null</code> and contains all the same time value fields
220 * @param ts The <code>Timestamp</code> to test against for equality.
222 * @return <code>true</code> if the specified object is equal to this
223 * object, <code>false</code> otherwise.
225 public boolean equals(Timestamp ts)
230 if (ts.getTime() != getTime())
233 if (ts.getNanos() != getNanos())
243 public int compareTo(Timestamp ts)
251 public int compareTo(Object obj)
253 return compareTo((Timestamp) obj);