# tablestream.hxx

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    00001 /*-------------------------------------------------------------------------
    00002  *
    00003  *   FILE
    00004  *      pqxx/tablestream.hxx
    00005  *
    00006  *   DESCRIPTION
    00007  *      definition of the pqxx::tablestream class.
    00008  *   pqxx::tablestream provides optimized batch access to a database table
    00009  *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/tablestream instead.
    00010  *
    00011  * Copyright (c) 2001-2006, Jeroen T. Vermeulen <jtv@xs4all.nl>
    00012  *
    00013  * See COPYING for copyright license.  If you did not receive a file called
    00014  * COPYING with this source code, please notify the distributor of this mistake,
    00015  * or contact the author.
    00016  *
    00017  *-------------------------------------------------------------------------
    00018  */
    00019 #include "pqxx/compiler-public.hxx"
    00020 #include "pqxx/compiler-internal-pre.hxx"
    00021
    00022 #include "pqxx/transaction_base"
    00023
    00024 /* Methods tested in eg. self-test program test001 are marked with "//[t1]"
    00025  */
    00026
    00027
    00028 namespace pqxx
    00029 {
    00030 class transaction_base;
    00031
    00032
    00034
    00043 class PQXX_LIBEXPORT tablestream : public internal::transactionfocus
    00044 {
    00045 public:
    00046   explicit tablestream(transaction_base &Trans,
    00047               const PGSTD::string &Null=PGSTD::string());               //[t6]
    00048
    00049   virtual ~tablestream() throw () =0;                                   //[t6]
    00050
    00052
    00059   virtual void complete() =0;
    00060
    00061 protected:
    00062   const PGSTD::string &NullStr() const { return m_Null; }
    00063   bool is_finished() const throw () { return m_Finished; }
    00064   void base_close();
    00065
    00067   template<typename ITER>
    00068   static PGSTD::string columnlist(ITER colbegin, ITER colend);
    00069
    00070 private:
    00071   PGSTD::string m_Null;
    00072   bool m_Finished;
    00073
    00074   // Not allowed:
    00075   tablestream();
    00076   tablestream(const tablestream &);
    00077   tablestream &operator=(const tablestream &);
    00078 };
    00079
    00080
    00081 template<typename ITER> inline
    00082 PGSTD::string tablestream::columnlist(ITER colbegin, ITER colend)
    00083 {
    00084   return separated_list(",", colbegin, colend);
    00085 }
    00086 } // namespace pqxx
    00087
    00088 #include "pqxx/compiler-internal-post.hxx"