diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2011-08-21 16:27:34 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2011-08-21 16:27:34 +0200 |
commit | 5b6649e6f7dd256147b48197a007c23001cef647 (patch) | |
tree | debffbb24e00bc485f9675cbc5be08ec1cc8eea9 /odb/connection.hxx | |
parent | 1e63b60696f2e3012221e3bf6430a0d66ce1ba34 (diff) |
Add odb::connection class
This abstract class represents a connection to the database. One can
use it to start a transaction or to execute a native statement out
of a transaction.
Before we had concrete connection classes in the database runtime
libraries (e.g., odb::mysql::connection). Now these classes derive
from odb::connection.
Diffstat (limited to 'odb/connection.hxx')
-rw-r--r-- | odb/connection.hxx | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/odb/connection.hxx b/odb/connection.hxx new file mode 100644 index 0000000..db8635c --- /dev/null +++ b/odb/connection.hxx @@ -0,0 +1,74 @@ +// 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 |