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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
00053 virtual void do_begin();
00054 virtual void do_commit();
00055 virtual void do_abort();
00056
00057 void CreateLogTable();
00058 void CreateTransactionRecord();
00059 void DeleteTransactionRecord(IDType ID) throw ();
00060 bool CheckTransactionRecord(IDType ID);
00061 };
00062
00063
00064
00066
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,
00140 const PGSTD::string &TName=PGSTD::string()) :
00141 basic_robusttransaction(C, isolation_tag::name(), TName)
00142 { Begin(); }
00143
00144 virtual ~robusttransaction() throw () { End(); }
00145 };
00146
00147 }
00148
00149