subtransaction.hxx

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00001 /*-------------------------------------------------------------------------
00002  *
00003  *   FILE
00004  *      pqxx/subtransaction.hxx
00005  *
00006  *   DESCRIPTION
00007  *      definition of the pqxx::subtransaction class.
00008  *   pqxx::subtransaction is a nested transaction, i.e. one within a transaction
00009  *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/subtransaction instead.
00010  *
00011  * Copyright (c) 2005-2008, 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 #ifndef PQXX_H_SUBTRANSACTION
00020 #define PQXX_H_SUBTRANSACTION
00021 
00022 #include "pqxx/compiler-public.hxx"
00023 #include "pqxx/compiler-internal-pre.hxx"
00024 
00025 #include "pqxx/dbtransaction"
00026 
00027 
00028 
00029 /* Methods tested in eg. self-test program test1 are marked with "//[t1]"
00030  */
00031 
00032 
00033 namespace pqxx
00034 {
00035 
00039 
00040 
00081 class PQXX_LIBEXPORT subtransaction :
00082   public internal::transactionfocus,
00083   public dbtransaction
00084 {
00085 public:
00086   explicit subtransaction(dbtransaction &T,
00087         const PGSTD::string &Name=PGSTD::string());                     //[t88]
00088 
00089 private:
00090   virtual void do_begin();                                              //[t88]
00091   virtual void do_commit();                                             //[t88]
00092   virtual void do_abort();                                              //[t88]
00093 
00094   void check_backendsupport() const;
00095 
00096   dbtransaction &m_parent;
00097 };
00098 
00099 }
00100 
00101 
00102 #include "pqxx/compiler-internal-post.hxx"
00103 
00104 #endif
00105 

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