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.
31 package mircoders.storage;
33 import java.sql.Connection;
34 import java.sql.SQLException;
35 import java.sql.Statement;
37 import mir.log.LoggerWrapper;
38 import mir.storage.Database;
39 import mir.storage.StorageObject;
40 import mir.storage.StorageObjectFailure;
43 * <b>This class implements the access to the comment-table for the
49 public class DatabaseComment extends Database implements StorageObject{
51 private static DatabaseComment instance;
53 public synchronized static DatabaseComment getInstance() {
54 if (instance == null) {
55 instance = new DatabaseComment();
60 private DatabaseComment() {
64 logger = new LoggerWrapper("Database.Comment");
66 this.theEntityClass = mircoders.entity.EntityComment.class;
69 public boolean deleteByContentId(String id) throws StorageObjectFailure {
70 Statement stmt = null;
71 Connection con = null;
75 /** @todo comments and topics should be deleted */
76 sql = "delete from " + theTable + " where to_media=" + id;
77 logger.info("DELETE "+ sql);
81 stmt = con.createStatement();
82 res = stmt.executeUpdate(sql);
84 catch (SQLException sqe) {
85 new StorageObjectFailure(sqe);
89 freeConnection(con, stmt);