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// file      : odb/connection.hxx
// author    : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license   : GNU GPL v2; see accompanying LICENSE file

#ifndef ODB_CONNECTION_HXX
#define ODB_CONNECTION_HXX

#include <odb/pre.hxx>

#include <string>
#include <cstddef> // std::size_t

#include <odb/forward.hxx>

#include <odb/details/export.hxx>
#include <odb/details/shared-ptr.hxx>

namespace odb
{
  class transaction_impl;

  class connection;
  typedef details::shared_ptr<connection> connection_ptr;

  class LIBODB_EXPORT connection: public details::shared_base
  {
  public:
    typedef odb::database database_type;

    database_type&
    database ();

    // Transactions.
    //
  public:
    virtual transaction_impl*
    begin () = 0;

    // Native database statement execution. Note that unlike the
    // versions in the database class, these can be executed
    // without a transaction.
    //
  public:
    unsigned long long
    execute (const char* statement);

    unsigned long long
    execute (const std::string& statement);

    virtual unsigned long long
    execute (const char* statement, std::size_t length) = 0;

  public:
    virtual
    ~connection ();

  protected:
    connection (database_type&);

  private:
    connection (const connection&);
    connection& operator= (const connection&);

  private:
    database_type& database_;
  };
}

#include <odb/connection.ixx>

#include <odb/post.hxx>

#endif // ODB_MYSQL_CONNECTION_HXX