tmwserv/src/dal/dataprovider.h

/*
 *  The Mana World Server
 *  Copyright 2004 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World  is free software; you can redistribute  it and/or modify it
 *  under the terms of the GNU General  Public License as published by the Free
 *  Software Foundation; either version 2 of the License, or any later version.
 *
 *  The Mana  World 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 General Public License for
 *  more details.
 *
 *  You should  have received a  copy of the  GNU General Public  License along
 *  with The Mana  World; if not, write to the  Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef _TMWSERV_DATA_PROVIDER_H_
#define _TMWSERV_DATA_PROVIDER_H_


#include <string>
#include <stdexcept>

#include "recordset.h"

namespace dal
{

typedef enum {
    DB_BKEND_MYSQL,
    DB_BKEND_SQLITE,
    DB_BKEND_POSTGRESQL
} DbBackends;


class DataProvider
{
    public:
        DataProvider(void)
            throw();


        virtual
        ~DataProvider(void)
            throw();


        bool
        isConnected(void) const
            throw();


        virtual DbBackends
        getDbBackend(void) const
            throw() = 0;


        virtual void connect(void) = 0;


        virtual const RecordSet&
        execSql(const std::string& sql,
                const bool refresh = false) = 0;


        virtual void
        disconnect(void) = 0;

        std::string
        getDbName(void);

        virtual void
        beginTransaction(void)
            throw (std::runtime_error) = 0;

        virtual void
        commitTransaction(void)
            throw (std::runtime_error) = 0;

        virtual void
        rollbackTransaction(void)
            throw (std::runtime_error) = 0;

        virtual const unsigned int
        getModifiedRows(void) const = 0;

        virtual const unsigned int
        getLastId(void) const = 0;

        std::string& escapeSQL(std::string &sql);

    protected:
        std::string mDbName;  
        bool mIsConnected;    
        std::string mSql;     
        RecordSet mRecordSet; 
};


} // namespace dal

#endif // _TMWSERV_DATA_PROVIDER_H_

---