SQLStatement.hh

//********************************************************************
//*** ResourcePool/SQL/SQLStatement.hh
//*** Copyright (c) 2003-2009 by Markus Winand <mws@fatalmind.com>
//*** $Id: SQLStatement.hh,v 1.15 2009-05-04 13:20:43 mws Exp $
//********************************************************************
/*
This file is part of ResourcePool.

ResourcePool 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 (at your option) any later version.

ResourcePool 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 ResourcePool; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307  USA */

#ifndef INCLUDE_SQLSTATEMENT_HH
#define INCLUDE_SQLSTATEMENT_HH

#include <string>
//#include <vector>
#include "mm/gc_ptr.hh"

#include "Exceptions/Exception.hh"


namespace fatalmind {
namespace SQL {

class SQLStatementImpl; // Fwd

class SQLStatement {
    public:
        struct Parameter {
            // enum? had my troubles with them, don't like them ;(
            static const int UNKNOWN;
            static const int CHAR;
            static const int INT;
            static const int FLOAT;
        };

        SQLStatement();

        SQLStatement(const std::string& sql);

        SQLStatement(const char* sql);

        SQLStatement(const SQLStatement&);
        ~SQLStatement();

        unsigned int getParamCount() const;

        // TODO: name ref?
        std::string getNameFor(const int pos) const;
        
        int getTypeFor(const int pos) const;

        const std::string& getSQL() const;
    
        const std::string& getSQLFragment(const int pos) const;

        bool operator==(const SQLStatement& rho);

        bool operator!=(const SQLStatement& rho);

    private:
        // TODO: TM, really important here!
        gc_ptr<SQLStatementImpl>  impl;

        friend class SQLParser;

        SQLStatement(SQLStatementImpl*);

//        no friend? access via getSQL() ;)
//        template<class charT, class traits>
//        friend
//                std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& s, const SQLStatement& rho);
};

template<class charT, class traits>
std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& s, const SQLStatement& rho);

} // namespace SQL
} // namespace fatalmind

// required for gc_ptr's Conversion magic to work.
#include "SQLStatementImpl.hh"

#endif

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