/*
- * Copyright (C) 2001, 2002 The Mir-coders group
+ * Copyright (C) 2001-2006 The Mir-coders group
*
* This file is part of Mir.
*
*
* In addition, as a special exception, The Mir-coders gives permission to link
* the code of this program with any library licensed under the Apache Software License,
- * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
- * (or with modified versions of the above that use the same license as the above),
* and distribute linked combinations including the two. You must obey the
* GNU General Public License in all respects for all of the code used other than
* the above mentioned libraries. If you modify this file, you may extend this
* exception to your version of the file, but you are not obligated to do so.
* If you do not wish to do so, delete this exception statement from your version.
*/
-package mir.module;
-import java.util.Map;
-import java.sql.SQLException;
+package mir.module;
import mir.entity.Entity;
import mir.entity.EntityList;
-import mir.storage.StorageObject;
+import mir.storage.Database;
+import mir.storage.DatabaseExc;
+import java.util.Map;
/**
* This class provides the base functionality for the derived Module-Classes.
*/
public class AbstractModule {
- protected StorageObject storage;
+ protected Database database;
- public AbstractModule(StorageObject aStorageObject) {
- storage = aStorageObject;
+ public AbstractModule(Database aDatabase) {
+ database = aDatabase;
}
/**
- * Returns the storage object associated with this module
+ * Returns the database object associated with this module
*/
- public StorageObject getStorageObject () {
- return storage;
+ public Database getStorageObject () {
+ return database;
}
- public Entity getById (String id) throws ModuleExc, ModuleFailure {
- try {
- if (storage == null)
- throw new ModuleExc("AbstractModule.getById: No StorageObject set!");
- Entity entity = storage.selectById(id);
-
- if (entity == null)
- throw new ModuleExc("AbstractModule.getById: No object for id = " + id);
- else
- return entity;
- }
- catch (Throwable e) {
- throw new ModuleFailure(e);
- }
- }
+ public Entity getById (String anId) throws ModuleFailure, EntityNotFoundExc {
+ if (database == null) {
+ throw new ModuleFailure("AbstractModule.getById: No Database set!");
+ }
- public EntityList getByWhereClause (String whereClause, int offset) throws ModuleExc, ModuleFailure {
- try {
- if (storage == null)
- throw new ModuleExc("AbstractModule.getByWhereClause: No StorageObject set!");
+ try {
+ Entity result = database.selectById(anId);
- return storage.selectByWhereClause(whereClause, offset);
- }
- catch (Throwable e) {
- throw new ModuleFailure(e);
- }
+ if (result == null) {
+ throw new EntityNotFoundExc("AbstractModule.getById: No object for id = " + anId);
+ }
+
+ return result;
+ }
+ catch (DatabaseExc e) {
+ throw new ModuleFailure("Database exception while retrieving entity with id " + anId);
+ }
}
- /**
- * * Standardfunktion, um einen Datensatz via StorageObject einzuf?gen
- * @param theValues Hash mit Spalte/Wert-Paaren
- * @return Id des eingef?gten Objekts
- * @exception ModuleExc
- * @exception ModuleFailure
- */
- public String add (Map theValues) throws ModuleExc, ModuleFailure {
+ public EntityList getByWhereClause (String whereClause, int offset) throws ModuleExc, ModuleFailure {
try {
- Entity theEntity = (Entity)storage.getEntityClass().newInstance();
- theEntity.setStorage(storage);
- theEntity.setFieldValues(theValues);
- return theEntity.insert();
+ if (database == null)
+ throw new ModuleExc("AbstractModule.getByWhereClause: No Database set!");
+
+ return database.selectByWhereClause(whereClause, offset);
}
catch (Throwable e) {
throw new ModuleFailure(e);
}
}
- /**
- * This function creates an Entity without yet storing it in the database
- */
- public Entity createNew() throws ModuleExc, ModuleFailure {
+ public String add(Map theValues) throws ModuleExc, ModuleFailure {
try {
- Entity result = (Entity)storage.getEntityClass().newInstance();
- result.setStorage(storage);
+ Entity entity = database.createNewEntity();
+ entity.setFieldValues(theValues);
- return result;
+ return entity.insert();
}
catch (Throwable e) {
throw new ModuleFailure(e);
}
}
- /**
- * Standardfunktion, um einen Datensatz via StorageObject zu aktualisieren
- * @param theValues Hash mit Spalte/Wert-Paaren
- * @return Id des eingef?gten Objekts
- * @exception ModuleExc
- * @exception ModuleFailure
- */
public String set (Map theValues) throws ModuleExc, ModuleFailure {
try {
- Entity theEntity = storage.selectById((String)theValues.get("id"));
+ Entity theEntity = database.selectById((String) theValues.get("id"));
if (theEntity == null)
throw new ModuleExc("No object found with id " + theValues.get("id"));
theEntity.setFieldValues(theValues);
*/
public void deleteById (String idParam) throws ModuleExc, ModuleFailure {
try {
- storage.delete(idParam);
+ database.delete(idParam);
}
catch (Throwable e) {
throw new ModuleFailure(e);
}
}
-
- /**
- * returns the number of rows
- */
- public int getSize(String where) throws ModuleExc, ModuleFailure {
- try {
- return storage.getSize(where);
- }
- catch (SQLException e) {
- throw new ModuleFailure("Can't retrieve number of entities: " + e.toString(), e);
- }
- }
-
}
projects / mir.git / blobdiff