hk_classes/hk_classes/hk_data.h

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// ****************************************************************************
// copyright (c) 2000-2005 Horst Knorr <hk_classes@knoda.org>
// This file is part of the hk_classes library.
// This file may be distributed and/or modified under the terms of the
// GNU Library Public License version 2 as published by the Free Software
// Foundation and appearing in the file COPYING included in the
// packaging of this file.
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// ****************************************************************************
#ifndef HK_DATA
#define HK_DATA
#include "hk_class.h"
using namespace std;
const hk_string defaulttextdelimiter="'";
const hk_string defaultidentifierdelimiter="\"";
class hk_data: public hk_class
{
    friend class hk_database;
    public:
        virtual hk_string   name(void) const;
        virtual void    set_name(const hk_string& n);
        enum enum_datasourcetypes {ds_table,ds_query,ds_actionquery,ds_view,ds_unknown};
        virtual enum_datasourcetypes type(void) const;
        hk_string identifierdelimiter(void) const {return p_identifierdelimiter;}
        hk_string textdelimiter(void) const {return p_sqltextdelimiter;}
        static bool print_sqlstatements(void) {return p_print_sqlstatements;}
        static void set_print_sqlstatements(bool p);

    protected:
        hk_data();
        virtual ~hk_data();
        virtual void before_source_vanishes(void);
        virtual void before_connection_disconnects(void);
        virtual void filelist_changes(listtype t);
        virtual bool driver_specific_name(const hk_string& n);
        hk_string   p_name;
        hk_string p_sqltextdelimiter;
        hk_string  p_identifierdelimiter;
        static bool    p_print_sqlstatements;//will be used to decide whether sql statements will be printed to cerr

    private:
//p_already_handled is used from hk_database in bulk operations to find out if this object has been already handled.
        bool    p_already_handled;

};
#endif

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