nsql.h

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// LICENSE: (Please see the file COPYING for details)
//
// NUS - Nemesis Utilities System: A C++ application development framework 
// Copyright (C) 2006, 2008 Otavio Rodolfo Piske
//
//  This file is part of NUS
//
//  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 version 2.1
//  of the License.
//
//  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 should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
#ifndef NSQL_H_
#define NSQL_H_

#include "nobject.h"
#include "nstring.h"
#include "nhostaddress.h"
#include "nsqlquery.h"
#include "nsqlrecord.h"

class NSql: public NObject {
      public:
            NSql(void);

            NSql(const NString &user, const NString &pass, 
                  const NHostAddress &host);
            

            NSql(const NString &user, const NString &pass, 
                  const NHostAddress &host, nint16 port);


            virtual ~NSql(void);

            virtual void setUser(const NString &user);

            virtual void setPassword(const NString &pass);

            virtual void setHost(const NHostAddress &host);

            virtual void setPort(nint16 port);

            virtual void setDatabase(const NString &database);


            virtual NString getUser(void) const;

            virtual NString getPassword(void) const;

            virtual NHostAddress getHost(void) const;

            virtual nint16 getPort(void) const;

            virtual NString getDatabase(void) const;


            virtual void connectToHost(void) = 0;

            virtual void disconnectFromHost(void) = 0;


            virtual bool execSql(const NSqlQuery &query) = 0;
            

            virtual NSqlRecord *getNext(void) = 0;

            
            virtual NSqlRecord *getPrevious(void) = 0;

            virtual NSqlRecord *getFirst(void) = 0;

            virtual NSqlRecord *getLast(void) = 0;


            virtual NString getError(void) const = 0;
            
      protected:
            NString m_user;
            NString m_password;
            NHostAddress m_host;
            nint16 m_port;
            NString m_database;

            void setRecordData(NSqlRecord *record, const NString &rowName, 
                  const NVtype &rowData);

      private:    
            NSql(const NSql &other);
            NSql &operator=(const NSql &rhs);
};

#endif // NSQL_H_

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