transaction.hxx

Go to the documentation of this file.

/*-------------------------------------------------------------------------
 *
 *   FILE
 *      pqxx/transaction.hxx
 *
 *   DESCRIPTION
 *      definition of the pqxx::transaction class.
 *   pqxx::transaction represents a standard database transaction
 *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/transaction instead.
 *
 * Copyright (c) 2001-2004, Jeroen T. Vermeulen <jtv@xs4all.nl>
 *
 * See COPYING for copyright license.  If you did not receive a file called
 * COPYING with this source code, please notify the distributor of this mistake,
 * or contact the author.
 *
 *-------------------------------------------------------------------------
 */
#include "pqxx/dbtransaction"



/* Methods tested in eg. self-test program test1 are marked with "//[t1]"
 */


namespace pqxx
{

class PQXX_LIBEXPORT basic_transaction : public dbtransaction
{
protected:
  explicit basic_transaction(connection_base &C, 
                             const PGSTD::string &IsolationLevel,
                             const PGSTD::string &TName);               //[t1]

private:
  virtual void do_begin();                                              //[t1]
  virtual void do_commit();                                             //[t1]
  virtual void do_abort();                                              //[t13]
};



template<isolation_level ISOLATIONLEVEL=read_committed>
class transaction : public basic_transaction
{
public:
  typedef isolation_traits<ISOLATIONLEVEL> isolation_tag;


  explicit transaction(connection_base &C, const PGSTD::string &TName): //[t1]
    basic_transaction(C, isolation_tag::name(), TName) 
        { Begin(); }

  explicit transaction(connection_base &C) :                            //[t1]
    basic_transaction(C, isolation_tag::name(), PGSTD::string()) 
        { Begin(); }

  virtual ~transaction() throw () { End(); }

protected:
  virtual const char *classname() const throw () { return "transaction"; }
};


typedef transaction<> work;

}

---