tablestream.hxx

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/*-------------------------------------------------------------------------
 *
 *   FILE
 *      pqxx/tablestream.hxx
 *
 *   DESCRIPTION
 *      definition of the pqxx::tablestream class.
 *   pqxx::tablestream provides optimized batch access to a database table
 *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/tablestream 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/libcompiler.h"

#include "pqxx/transaction_base"

/* Methods tested in eg. self-test program test001 are marked with "//[t1]"
 */


namespace pqxx
{
class transaction_base;



class PQXX_LIBEXPORT tablestream : public internal::transactionfocus
{
public:
  tablestream(transaction_base &Trans, 
              const PGSTD::string &Name, 
              const PGSTD::string &Null=PGSTD::string(),
              const char Classname[]="tablestream");                    //[t6]

  virtual ~tablestream() throw () =0;                                   //[t6]


  virtual void complete() =0;

#ifdef PQXX_DEPRECATED_HEADERS

  PGSTD::string Name() const { return name(); }
#endif

protected:
  const PGSTD::string &NullStr() const { return m_Null; }
  bool is_finished() const throw () { return m_Finished; }
  void base_close();

  template<typename ITER>
  static PGSTD::string columnlist(ITER colbegin, ITER colend);

private:
  PGSTD::string m_Null;
  bool m_Finished;

  // Not allowed:
  tablestream();
  tablestream(const tablestream &);
  tablestream &operator=(const tablestream &);
};


template<typename ITER> inline
PGSTD::string tablestream::columnlist(ITER colbegin, ITER colend)
{
  return separated_list(",", colbegin, colend);
}
} // namespace pqxx

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