kexidbcursor.h

/***************************************************************************
 * kexidbcursor.h
 * This file is part of the KDE project
 * copyright (C)2004-2005 by Sebastian Sauer (mail@dipe.org)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * This program 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
 * Library General Public License for more details.
 * You should have received a copy of the GNU Library General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 ***************************************************************************/
 
#ifndef KROSS_KEXIDB_KEXIDBCURSOR_H
#define KROSS_KEXIDB_KEXIDBCURSOR_H
 
#include <tqstring.h>
 
#include <api/object.h>
#include <api/variant.h>
#include <api/list.h>
#include <api/class.h>
 
#include <kexidb/cursor.h>
#include <kexidb/roweditbuffer.h>
 
namespace Kross { namespace KexiDB {
 
    // Forward declaration.
    class KexiDBConnection;

    class KexiDBCursor : public Kross::Api::Class<KexiDBCursor>
    {
        public:
            KexiDBCursor(::KexiDB::Cursor* cursor);
            virtual ~KexiDBCursor();
            virtual const TQString getClassName() const;
 
        private:

            bool open();
            bool isOpened();
            bool reopen();
            bool close();

            bool moveFirst();
            bool moveLast();
            bool movePrev();
            bool moveNext();

            bool bof();
            bool eof();

            TQ_LLONG at();
            uint fieldCount();
            TQVariant value(uint index);
            bool setValue(uint index, TQVariant value);

            bool save();
 
        private:
            ::KexiDB::Cursor* m_cursor;
 
            class Record {
                public:
                    ::KexiDB::RowData rowdata;
                    ::KexiDB::RowEditBuffer* buffer;
                    Record(::KexiDB::Cursor* cursor)
                        : buffer( new ::KexiDB::RowEditBuffer(true) )
                    {
                        cursor->storeCurrentRow(rowdata);
                    }
                    ~Record()
                    {
                        delete buffer;
                    }
            };
            TQMap<TQ_LLONG, Record*> m_modifiedrecords;
 
            void clearBuffers();
    };
 
}}
 
#endif