diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2012-04-23 16:48:01 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2012-04-23 16:48:01 +0200 |
commit | 42503207920b9264e04c97cb6a5c53214fd2eff8 (patch) | |
tree | dd192b60515188e2afd6f11e7cc54aac73f571e4 /odb/mysql/polymorphic-object-result.hxx | |
parent | 4d0711124bb6cdca491e33a51911d20090a1879a (diff) |
Polymorphic inheritance support
Diffstat (limited to 'odb/mysql/polymorphic-object-result.hxx')
-rw-r--r-- | odb/mysql/polymorphic-object-result.hxx | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/odb/mysql/polymorphic-object-result.hxx b/odb/mysql/polymorphic-object-result.hxx new file mode 100644 index 0000000..59bb74d --- /dev/null +++ b/odb/mysql/polymorphic-object-result.hxx @@ -0,0 +1,87 @@ +// file : odb/mysql/polymorphic-object-result.hxx +// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_MYSQL_POLYMORPHIC_OBJECT_RESULT_HXX +#define ODB_MYSQL_POLYMORPHIC_OBJECT_RESULT_HXX + +#include <odb/pre.hxx> + +#include <cstddef> // std::size_t + +#include <odb/polymorphic-object-result.hxx> + +#include <odb/details/shared-ptr.hxx> + +#include <odb/mysql/version.hxx> +#include <odb/mysql/forward.hxx> // query +#include <odb/mysql/statement.hxx> + +namespace odb +{ + namespace mysql + { + template <typename T> + class polymorphic_object_result_impl: + public odb::polymorphic_object_result_impl<T> + { + public: + typedef odb::polymorphic_object_result_impl<T> base_type; + + typedef typename base_type::object_type object_type; + typedef typename base_type::object_traits object_traits; + typedef typename base_type::id_type id_type; + + typedef typename base_type::pointer_type pointer_type; + typedef typename base_type::pointer_traits pointer_traits; + + typedef typename base_type::root_type root_type; + typedef typename base_type::root_traits root_traits; + typedef typename base_type::discriminator_type discriminator_type; + + typedef typename object_traits::statements_type statements_type; + + virtual + ~polymorphic_object_result_impl (); + + polymorphic_object_result_impl (const query&, + details::shared_ptr<select_statement>, + statements_type&); + + virtual void + load (object_type*, bool fetch); + + virtual id_type + load_id (); + + virtual discriminator_type + load_discriminator (); + + virtual void + next (); + + virtual void + cache (); + + virtual std::size_t + size (); + + using base_type::current; + + private: + void + fetch (bool next = true); + + private: + details::shared_ptr<select_statement> statement_; + statements_type& statements_; + std::size_t count_; + }; + } +} + +#include <odb/mysql/polymorphic-object-result.txx> + +#include <odb/post.hxx> + +#endif // ODB_MYSQL_POLYMORPHIC_OBJECT_RESULT_HXX |