dbtransaction.hxx

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00001 /*-------------------------------------------------------------------------
00002  *
00003  *   FILE
00004  *      pqxx/dbtransaction.hxx
00005  *
00006  *   DESCRIPTION
00007  *      definition of the pqxx::dbtransaction abstract base class.
00008  *   pqxx::dbransaction defines a real transaction on the database
00009  *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/dbtransaction instead.
00010  *
00011  * Copyright (c) 2004-2006, Jeroen T. Vermeulen <jtv@xs4all.nl>
00012  *
00013  * See COPYING for copyright license.  If you did not receive a file called
00014  * COPYING with this source code, please notify the distributor of this mistake,
00015  * or contact the author.
00016  *
00017  *-------------------------------------------------------------------------
00018  */
00019 #include "pqxx/compiler-public.hxx"
00020 #include "pqxx/compiler-internal-pre.hxx"
00021 
00022 #include "pqxx/transaction_base"
00023 
00024 namespace pqxx
00025 {
00026 
00028 
00058 class PQXX_LIBEXPORT dbtransaction : public transaction_base
00059 {
00060 protected:
00061   dbtransaction(connection_base &, const PGSTD::string &IsolationString);
00062   explicit dbtransaction(connection_base &, bool direct=true);
00063 
00064   virtual ~dbtransaction();
00065 
00067   void start_backend_transaction();
00068 
00069 protected:
00071   virtual void do_begin();                                              //[t1]
00073   virtual result do_exec(const char Query[]);
00075   virtual void do_commit() =0;
00077 
00083   virtual void do_abort();                                              //[t13]
00084 
00085   static PGSTD::string fullname(const PGSTD::string &ttype,
00086         const PGSTD::string &isolation);
00087 
00088 private:
00090   PGSTD::string m_StartCmd;
00091 };
00092 
00093 
00094 } // namespace pqxx
00095 
00096 #include "pqxx/compiler-internal-post.hxx"

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