diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2012-03-21 08:37:25 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2012-04-23 16:49:43 +0200 |
commit | 290d22210040a7b373e2dc9084240cdeffa1fa3a (patch) | |
tree | 78f090fe5d9da0e4b1d486a39c605c784637b67f /odb/mssql/polymorphic-object-result.hxx | |
parent | c1b8b6f16e4881e57aa0da67e6f09ad71ee6099d (diff) |
Polymorphic inheritance support
Diffstat (limited to 'odb/mssql/polymorphic-object-result.hxx')
-rw-r--r-- | odb/mssql/polymorphic-object-result.hxx | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/odb/mssql/polymorphic-object-result.hxx b/odb/mssql/polymorphic-object-result.hxx new file mode 100644 index 0000000..e370661 --- /dev/null +++ b/odb/mssql/polymorphic-object-result.hxx @@ -0,0 +1,92 @@ +// file : odb/mssql/polymorphic-object-result.hxx +// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC +// license : ODB NCUEL; see accompanying LICENSE file + +#ifndef ODB_MSSQL_POLYMORPHIC_OBJECT_RESULT_HXX +#define ODB_MSSQL_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/mssql/version.hxx> +#include <odb/mssql/forward.hxx> // query +#include <odb/mssql/statement.hxx> + +namespace odb +{ + namespace mssql + { + 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::image_type image_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: + typedef mssql::change_callback change_callback_type; + + static void + change_callback (void* context); + + private: + details::shared_ptr<select_statement> statement_; + statements_type& statements_; + bool can_load_; + bool use_copy_; + image_type* image_copy_; + }; + } +} + +#include <odb/mssql/polymorphic-object-result.txx> + +#include <odb/post.hxx> + +#endif // ODB_MSSQL_POLYMORPHIC_OBJECT_RESULT_HXX |