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#include "pqxx/dbtransaction"
00020 
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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