connectionpolicy.hxx

00001 /*-------------------------------------------------------------------------
00002  *
00003  *   FILE
00004  *      pqxx/connectionpolicy.hxx
00005  *
00006  *   DESCRIPTION
00007  *      definition of the connection policy classes
00008  *   Interface for defining connection policies
00009  *   DO NOT INCLUDE THIS FILE DIRECTLY; include pqxx/connection instead.
00010  *
00011  * Copyright (c) 2005-2008, 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_CONNECTIONPOLICY
00020 #define PQXX_H_CONNECTIONPOLICY
00021 
00022 #include "pqxx/compiler-public.hxx"
00023 #include "pqxx/compiler-internal-pre.hxx"
00024 
00025 #include <string>
00026 
00027 #include "pqxx/libpq-forward.hxx"
00028 
00029 
00030 namespace pqxx
00031 {
00032 
00033 
00038 
00039 class PQXX_LIBEXPORT connectionpolicy
00040 {
00041 public:
00042   typedef internal::pq::PGconn *handle;
00043 
00044   explicit connectionpolicy(const PGSTD::string &opts);
00045   virtual ~connectionpolicy() throw ();
00046 
00047   const PGSTD::string &options() const throw () { return m_options; }
00048 
00049   virtual handle do_startconnect(handle orig);
00050   virtual handle do_completeconnect(handle orig);
00051   virtual handle do_dropconnect(handle orig) throw ();
00052   virtual handle do_disconnect(handle orig) throw ();
00053   virtual bool is_ready(handle) const throw ();
00054 
00055 protected:
00056   handle normalconnect(handle);
00057 
00058 private:
00059   PGSTD::string m_options;
00060 };
00061 
00063 } // namespace
00064 
00065 #include "pqxx/compiler-internal-post.hxx"
00066 
00067 #endif
00068 

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