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/* -*- c++ -*-
* __BEGIN_COPYRIGHT
* SimpleDB API
*
* Copyright (C) 2005 Eminence Technology Pty Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You can view the GNU Lesser General Public Licence at
* http://www.gnu.org/licenses/lgpl.html or you can write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Eminence Technology Pty Ltd can be contacted by writing to
* Eminence Technology, PO Box 118, Moorooka QLD 4105, Australia.
* Alternatively, you may email opensource [at] eminence [dot] com [dot] au
* __END_COPYRIGHT
*/
#ifndef __SIMPLEDB_FACTORY_H_
#define __SIMPLEDB_FACTORY_H_
#include "Database.h"
#include <memory>
namespace SimpleDB {
/** This simple singleton factory produces and creates memory for database handles
* to be returned to the client.
*
* Currently this factory is not useful. It will be used in future for
* connection pooling. Work needs to be done to make it thread safe
* and exception safe.
*
* \throw SimpleDB Exceptions (same as those thrown during normal creation)
* \todo add mutual exclusion with algorithm for intelligent handing out of
* connection handles (block based on some algorithm to improve efficiency)
*/
class SimpleDBFactory {
public:
/** Return the single instance of the SimpleDB Factory
*/
static SimpleDBFactory* Instance() ;
/** Create an auto_ptr and return it, then ownership has to be transferred to the caller
* @param dsn The Database source name
* @return auto_ptr to Database.
*/
static std::auto_ptr<Database> getDBHandle(const std::string dsn);
/** Destroy the factory for normal cleanup.
*/
static void Kill () ;
protected:
/** Hidden constructor.
*/
SimpleDBFactory() {};
/** From persistent singleton pattern. Make sure only one
* instance of the factory will be created.
*/
static SimpleDBFactory* _instance ;
};
};
#endif
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