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00019 #include "pqxx/dbtransaction"
00020 
00021 
00022 
00023 
00024 
00025 
00026 namespace pqxx
00027 {
00028 
00029 class PQXX_LIBEXPORT basic_robusttransaction : public dbtransaction
00030 {
00031 public:
00033   typedef isolation_traits<read_committed> isolation_tag;
00034 
00035   virtual ~basic_robusttransaction() =0;                                
00036 
00037 protected:
00039 
00044   explicit basic_robusttransaction(connection_base &C,
00045                                    const PGSTD::string &IsolationLevel,
00046                                    const PGSTD::string &Name);          
00047 
00048 private:
00049   typedef unsigned long IDType;
00050   IDType m_ID;
00051   PGSTD::string m_LogTable;
00052   int m_backendpid;
00053 
00054   virtual void do_begin();                                              
00055   virtual void do_commit();                                             
00056   virtual void do_abort();                                              
00057 
00058   void CreateLogTable();
00059   void CreateTransactionRecord();
00060   void DeleteTransactionRecord(IDType ID) throw ();
00061   bool CheckTransactionRecord(IDType ID);
00062 };
00063 
00064 
00065 
00067 
00133 template<isolation_level ISOLATIONLEVEL=read_committed>
00134 class robusttransaction : public basic_robusttransaction
00135 {
00136 public:
00137   typedef isolation_traits<ISOLATIONLEVEL> isolation_tag;
00138 
00139   explicit robusttransaction(connection_base &C, const PGSTD::string &TName) :
00140     basic_robusttransaction(C, isolation_tag::name(), TName)
00141         { Begin(); }
00142 
00143   explicit robusttransaction(connection_base &C) :
00144     basic_robusttransaction(C, isolation_tag::name(), PGSTD::string())
00145         { Begin(); }
00146 
00147   virtual ~robusttransaction() throw () { End(); }
00148 };
00149 
00150 } 
00151 
00152