libpqxx: tablestream.hxx Source File

libpqxx 4.0.1

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tablestream.hxx
1 /*-------------------------------------------------------------------------
2 *
3 * FILE
4 * pqxx/tablestream.hxx
5 *
6 * DESCRIPTION
7 * definition of the pqxx::tablestream class.
8 * pqxx::tablestream provides optimized batch access to a database table
9 * DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/tablestream instead.
10 *
11 * Copyright (c) 2001-2011, Jeroen T. Vermeulen <jtv@xs4all.nl>
12 *
13 * See COPYING for copyright license. If you did not receive a file called
14 * COPYING with this source code, please notify the distributor of this mistake,
15 * or contact the author.
16 *
17 *-------------------------------------------------------------------------
18 */
19 #ifndef PQXX_H_TABLESTREAM
20 #define PQXX_H_TABLESTREAM
21 #include "pqxx/compiler-public.hxx"
22 #include "pqxx/compiler-internal-pre.hxx"
23 #include "pqxx/transaction_base"
24 namespace pqxx
25 {
26 class transaction_base;
28 class PQXX_LIBEXPORT PQXX_NOVTABLE tablestream :
29 public internal::transactionfocus
30 {
31 public:
32 explicit tablestream(transaction_base &Trans,
33 const PGSTD::string &Null=PGSTD::string());
34 virtual ~tablestream() throw () =0;
35 virtual void complete() =0;
36 protected:
37 const PGSTD::string &NullStr() const { return m_Null; }
38 bool is_finished() const throw () { return m_Finished; }
39 void base_close();
40 template<typename ITER>
41 static PGSTD::string columnlist(ITER colbegin, ITER colend);
42 private:
43 PGSTD::string m_Null;
44 bool m_Finished;
45 tablestream();
46 tablestream(const tablestream &);
47 tablestream &operator=(const tablestream &);
48 };
49 template<typename ITER> inline
50 PGSTD::string tablestream::columnlist(ITER colbegin, ITER colend)
51 {
52 return separated_list(",", colbegin, colend);
53 }
54 } // namespace pqxx
55 #include "pqxx/compiler-internal-post.hxx"
56 #endif