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/** 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) 2000-2019, Jeroen T. Vermeulen.
*
* 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.
*/
#ifndef PQXX_H_TABLESTREAM
#define PQXX_H_TABLESTREAM
#include "pqxx/compiler-public.hxx"
#include "pqxx/compiler-internal-pre.hxx"
#include "pqxx/transaction_base.hxx"
namespace pqxx
{
/// Base class for obsolete tablereader/tablewriter classes.
/** @deprecated Use stream_from and stream_to instead.
*/
class PQXX_LIBEXPORT PQXX_NOVTABLE tablestream :
public internal::transactionfocus
{
public:
explicit tablestream(
transaction_base &Trans,
const std::string &Null=std::string{});
virtual ~tablestream() noexcept =0;
virtual void complete() =0;
protected:
const std::string &NullStr() const { return m_null; }
bool is_finished() const noexcept { return m_finished; }
void base_close();
template<typename ITER>
static std::string columnlist(ITER colbegin, ITER colend);
private:
std::string m_null;
bool m_finished = false;
tablestream() =delete;
tablestream(const tablestream &) =delete;
tablestream &operator=(const tablestream &) =delete;
};
template<typename ITER> inline
std::string tablestream::columnlist(ITER colbegin, ITER colend)
{
return separated_list(",", colbegin, colend);
}
} // namespace pqxx
#include "pqxx/compiler-internal-post.hxx"
#endif
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