2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir 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 of the License, or
9 * (at your option) any later version.
11 * Mir 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 for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
30 package mircoders.storage;
32 import java.util.GregorianCalendar;
34 import mir.entity.Entity;
35 import mir.log.LoggerWrapper;
36 import mir.misc.StringUtil;
37 import mir.storage.Database;
38 import mir.storage.DatabaseFailure;
40 public class DatabaseAudio extends Database {
42 private static DatabaseAudio instance;
44 // the following *has* to be sychronized cause this static method
45 // could get preemted and we could end up with 2 instances of DatabaseFoo..
46 // see the "Singletons with needles and thread" article at JavaWorld -mh
47 public synchronized static DatabaseAudio getInstance() {
48 if (instance == null) {
49 instance = new DatabaseAudio();
54 private DatabaseAudio() throws DatabaseFailure {
56 logger = new LoggerWrapper("Database.Audio");
60 entityClass = mircoders.entity.EntityAudio.class;
63 public void update(Entity theEntity) throws DatabaseFailure {
64 String date = theEntity.getFieldValue("date");
66 date = StringUtil.date2webdbDate(new GregorianCalendar());
67 theEntity.setFieldValue("date", date);
70 super.update(theEntity);
73 public String insert(Entity theEntity) throws DatabaseFailure {
74 String date = theEntity.getFieldValue("date");
76 date = StringUtil.date2webdbDate(new GregorianCalendar());
77 theEntity.setFieldValue("date", date);
79 return super.insert(theEntity);
82 protected String getPrimaryKeySequence() {
83 return "media_id_seq";