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;
34 import mir.storage.DatabaseExc;
39 * This class provides the base functionality for the derived Module-Classes.
40 * These classes should provide methods to make more or less complex actions
41 * on Database and Entity classes. The modules are used by ServletModules.
42 * Future possibility could be access via Applications.
44 * Abstrakte Klasse, von denen die Modules die Basisfunktionalit?t erben.
45 * Die Moduleschicht dient dazu, Funktionalitaeten zur Verf?gung zu stellen,
46 * die von mehreren ServletModulen verwendet werden.
50 public class AbstractModule {
51 protected Database database;
53 public AbstractModule(Database aDatabase) {
58 * Returns the database object associated with this module
60 public Database getStorageObject () {
64 public Entity getById (String anId) throws ModuleFailure, EntityNotFoundExc {
65 if (database == null) {
66 throw new ModuleFailure("AbstractModule.getById: No Database set!");
70 Entity result = database.selectById(anId);
73 throw new EntityNotFoundExc("AbstractModule.getById: No object for id = " + anId);
78 catch (DatabaseExc e) {
79 throw new ModuleFailure("Database exception while retrieving entity with id " + anId);
83 public EntityList getByWhereClause (String whereClause, int offset) throws ModuleExc, ModuleFailure {
86 throw new ModuleExc("AbstractModule.getByWhereClause: No Database set!");
88 return database.selectByWhereClause(whereClause, offset);
91 throw new ModuleFailure(e);
95 public String add(Map theValues) throws ModuleExc, ModuleFailure {
97 Entity entity = database.createNewEntity();
98 entity.setFieldValues(theValues);
100 return entity.insert();
102 catch (Throwable e) {
103 throw new ModuleFailure(e);
107 public String set (Map theValues) throws ModuleExc, ModuleFailure {
109 Entity theEntity = database.selectById((String) theValues.get("id"));
110 if (theEntity == null)
111 throw new ModuleExc("No object found with id " + theValues.get("id"));
112 theEntity.setFieldValues(theValues);
114 return theEntity.getId();
116 catch (Throwable e) {
117 throw new ModuleFailure(e);
122 * Deletes a record using an id
124 * @exception ModuleExc
125 * @exception ModuleFailure
127 public void deleteById (String idParam) throws ModuleExc, ModuleFailure {
129 database.delete(idParam);
131 catch (Throwable e) {
132 throw new ModuleFailure(e);