CommandCommon.hh

//********************************************************************
//*** ResourcePool/oracle/CommandCommon.hh
//*** Copyright (c) 2003-2008 by Markus Winand <mws@fatalmind.com>
//*** $Id: CommandCommon.hh,v 1.33 2008/04/14 13:07:01 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 RESOURCEPOOL_ORACLE_COMMANDCOMMON_HH
#define RESOURCEPOOL_ORACLE_COMMANDCOMMON_HH

#ifndef RESOURCEPOOL_ORACLE_COMMANDINTERFACE_HH
#include "CommandInterface.hh"
#endif

#ifndef RESOURCEPOOL_ORACLE_ORACLETYPEFWD_HH
#include "oracleTypeFwd.hh"
#endif

#ifndef INCLUDED_GC_PTR_HH
#include "mm/gc_ptr.hh"
#endif

#ifndef RESOURCEPOOL_COMMAND_HH
#include "ResourcePool/Command.hh"
#endif

#ifndef RESOURCEPOOL_ORACLE_OCIHANDLEFWD_HH
#include "OCIHandleFwd.hh"
#endif

#ifndef RESOURCEPOOL_SQL_BIND_HH
#include "ResourcePool/SQL/Bind.hh"
#endif

#ifndef RESOURCEPOOL_ORACLE_STATEMENTCACHE_HH
#include "StatementCache.hh"
#endif

#ifndef RESOURCEPOOL_ORACLE_ORACLESTATEMENT_HH
#include "oracleStatement.hh"
#endif

#include <string>

namespace fatalmind {
namespace oracle {
template<class TM, template<class> class SLMDC>
class CommandCommon
: public CommandInterface<TM, SLMDC>
, public SQL::Bind<oracleType, oracleTypeImpl> 
{
    public:
        virtual ~CommandCommon();
        
        virtual void outputoperator(std::ostream& s) const;
    protected:
        typedef SQL::Bind<oracleType, oracleTypeImpl> super_bind;
        CommandCommon(const std::string&);

        /*
         * this functions is the primary target to be overwritten by
         * the respective SQL actions (SQLExecute, SQLSelect and so on)
         */
        virtual void _execute(oracleResource<TM>&, StatementCache&) = 0;

        /*
         * performs the OCI prepare call (cached)
         */
        void prepare(oracleHandles&, StatementCache&, const oracleStatement& oraSQL);
        /*
         * perform the OCIBind calls. since this is required by all (not only)
         * select calls its here in the Common code
         */
        void real_bind(oracleHandles&);

        const std::string& getSQL() const;

        virtual const std::string& getCommandName() const;
        static const std::string _CommandCommonName;
    
        std::string _SQL;
    
        StatementCache::handle_t   _sth;    
};

} // namespace oracle
} // namespace fatalmind
#endif

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