2 * Copyright (C) 2001-2006 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 * and distribute linked combinations including the two. You must obey the
23 * GNU General Public License in all respects for all of the code used other than
24 * the above mentioned libraries. If you modify this file, you may extend this
25 * exception to your version of the file, but you are not obligated to do so.
26 * If you do not wish to do so, delete this exception statement from your version.
31 import mir.entity.Entity;
32 import mir.entity.EntityList;
33 import mir.storage.Database;
38 * This class provides the base functionality for the derived Module-Classes.
39 * These classes should provide methods to make more or less complex actions
40 * on Database and Entity classes. The modules are used by ServletModules.
41 * Future possibility could be access via Applications.
43 * Abstrakte Klasse, von denen die Modules die Basisfunktionalit?t erben.
44 * Die Moduleschicht dient dazu, Funktionalitaeten zur Verf?gung zu stellen,
45 * die von mehreren ServletModulen verwendet werden.
49 public class AbstractModule {
50 protected Database database;
52 public AbstractModule(Database aDatabase) {
57 * Returns the database object associated with this module
59 public Database getStorageObject () {
63 public Entity getById (String id) throws ModuleExc, ModuleFailure {
66 throw new ModuleExc("AbstractModule.getById: No Database set!");
67 Entity entity = database.selectById(id);
70 throw new ModuleExc("AbstractModule.getById: No object for id = " + id);
74 throw new ModuleFailure(e);
78 public EntityList getByWhereClause (String whereClause, int offset) throws ModuleExc, ModuleFailure {
81 throw new ModuleExc("AbstractModule.getByWhereClause: No Database set!");
83 return database.selectByWhereClause(whereClause, offset);
86 throw new ModuleFailure(e);
90 public String add(Map theValues) throws ModuleExc, ModuleFailure {
92 Entity entity = database.createNewEntity();
93 entity.setFieldValues(theValues);
95 return entity.insert();
98 throw new ModuleFailure(e);
102 public String set (Map theValues) throws ModuleExc, ModuleFailure {
104 Entity theEntity = database.selectById((String) theValues.get("id"));
105 if (theEntity == null)
106 throw new ModuleExc("No object found with id " + theValues.get("id"));
107 theEntity.setFieldValues(theValues);
109 return theEntity.getId();
111 catch (Throwable e) {
112 throw new ModuleFailure(e);
117 * Deletes a record using an id
119 * @exception ModuleExc
120 * @exception ModuleFailure
122 public void deleteById (String idParam) throws ModuleExc, ModuleFailure {
124 database.delete(idParam);
126 catch (Throwable e) {
127 throw new ModuleFailure(e);