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 the com.oreilly.servlet library, any library
22 * licensed under the Apache Software License, The Sun (tm) Java Advanced
23 * Imaging library (JAI), The Sun JIMI library (or with modified versions of
24 * the above that use the same license as the above), and distribute linked
25 * combinations including the two. You must obey the GNU General Public
26 * License in all respects for all of the code used other than the above
27 * mentioned libraries. If you modify this file, you may extend this exception
28 * to your version of the file, but you are not obligated to do so. If you do
29 * not wish to do so, delete this exception statement from your version.
32 package mircoders.storage;
34 import mir.log.LoggerWrapper;
35 import mir.entity.Entity;
36 import mir.entity.EntityRelation;
37 import mir.storage.Database;
38 import mir.storage.StorageObject;
39 import mir.storage.StorageObjectFailure;
42 * <b>this class implements the access to the content-table</b>
47 public class DatabaseUploadedMedia extends Database implements StorageObject {
49 private static DatabaseUploadedMedia instance;
50 private static EntityRelation relationMediaType;
52 // Contructors / Singleton
54 public static DatabaseUploadedMedia getInstance()
55 throws StorageObjectFailure {
57 if (instance == null ) {
58 instance = new DatabaseUploadedMedia();
59 instance.myselfDatabase = instance;
64 private DatabaseUploadedMedia()
65 throws StorageObjectFailure {
69 logger = new LoggerWrapper("Database.UploadedMedia");
71 this.theTable="uploaded_media";
72 this.theCoreTable="media";
73 relationMediaType = new EntityRelation("to_media_type", "id", DatabaseMediaType.getInstance(), EntityRelation.TO_ONE);
74 try { this.theEntityClass = Class.forName("mircoders.entity.EntityUploadedMedia"); }
75 catch (Exception e) { throw new StorageObjectFailure(e); }
82 * returns the media_type that belongs to the media item (via entityrelation)
83 * where db-flag is_published is true
85 public Entity getMediaType(Entity ent) throws StorageObjectFailure {
88 type = relationMediaType.getOne(ent);
91 logger.error("DatabaseUploadedMedia :: failed to get media_type: " + t.getMessage());
93 throw new StorageObjectFailure("DatabaseUploadedMedia :: failed to get media_type", t);