# transaction.hxx

    00001 /*-------------------------------------------------------------------------
    00002  *
    00003  *   FILE
    00004  *      pqxx/transaction.hxx
    00005  *
    00006  *   DESCRIPTION
    00007  *      definition of the pqxx::transaction class.
    00008  *   pqxx::transaction represents a standard database transaction
    00009  *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/transaction instead.
    00010  *
    00011  * Copyright (c) 2001-2008, 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 #ifndef PQXX_H_TRANSACTION
    00020 #define PQXX_H_TRANSACTION
    00021
    00022 #include "pqxx/compiler-public.hxx"
    00023 #include "pqxx/compiler-internal-pre.hxx"
    00024
    00025 #include "pqxx/dbtransaction"
    00026
    00027
    00028
    00029 /* Methods tested in eg. self-test program test1 are marked with "//[t1]"
    00030  */
    00031
    00032
    00033 namespace pqxx
    00034 {
    00035
    00040
    00041 class PQXX_LIBEXPORT basic_transaction : public dbtransaction
    00042 {
    00043 protected:
    00044   basic_transaction(connection_base &C,
    00045                              const PGSTD::string &IsolationLevel);      //[t1]
    00046
    00047 private:
    00048   virtual void do_commit();                                             //[t1]
    00049 };
    00050
    00051
    00053
    00081 template<isolation_level ISOLATIONLEVEL=read_committed>
    00082 class transaction : public basic_transaction
    00083 {
    00084 public:
    00085   typedef isolation_traits<ISOLATIONLEVEL> isolation_tag;
    00086
    00088
    00093   explicit transaction(connection_base &C, const PGSTD::string &TName): //[t1]
    00094     namedclass(fullname("transaction", isolation_tag::name()), TName),
    00095     basic_transaction(C, isolation_tag::name())
    00096         { Begin(); }
    00097
    00098   explicit transaction(connection_base &C) :                            //[t1]
    00099     namedclass(fullname("transaction", isolation_tag::name())),
    00100     basic_transaction(C, isolation_tag::name())
    00101         { Begin(); }
    00102
    00103   virtual ~transaction() throw ()
    00104   {
    00105 #ifdef PQXX_QUIET_DESTRUCTORS
    00106     disable_noticer Quiet(conn());
    00107 #endif
    00108     End();
    00109   }
    00110 };
    00111
    00112
    00114 typedef transaction<> work;
    00115
    00117
    00118 }
    00119
    00120
    00121 #include "pqxx/compiler-internal-post.hxx"
    00122
    00123 #endif
    00124