/**
 * @file
 * $Id$
 * $Revision$
 * $Author$
 * $Date$
 *
 * This file is part of The iWear Framework.
 * In particular this file is part of the iWear Database Access Library.
 *
 * The iWear Framework 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 as in version 2 of the License.

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

#ifndef __IWEAR_DB_IWPGDB_H
#define __IWEAR_DB_IWPGDB_H

#include "iwear/db/db.h"

#ifndef HAVE_IWPGDB
#error HAVE_IWPGDB is not defined in config.h at installation time. Rebuild the library.
#endif

#include "pqxx/connection"

#include <list>

namespace iwear {
    namespace db {

class pgrecordset;
class pgdb : public db 
{
public:
    friend class pgrecordset;
    pgdb( );
    virtual ~pgdb( );
private:
    pgdb( const pgdb& ) : db() {}

    pqxx::connection* conn;

    virtual int connect( const std::string& dbh, const std::string& dbn, const std::string& dbu, const std::string& dbpw, const std::string& dbpar);
    virtual int disconnect( void );

   /**
    */
    virtual transaction_implementation& transact( transaction::isolation_level il, const std::string& name);
    virtual int set_encoding( const std::string& );
   /**
    * We override this function, since the libpqxx can better detect database
    * backend disconnection issues, so we use their native functions.
    */
    virtual bool is_connected( void );
};
} // namespace iwear
}
#endif