diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2013-05-06 12:05:39 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2013-08-14 15:18:23 +0200 |
commit | 91830e3bd38a05c73d03a5dfb88997799d44274b (patch) | |
tree | 399f1fc61ce959ac63b8b7ebaf5e3c58f80d8a7d /odb/polymorphic-map.hxx | |
parent | 72b262ee4f375089256f6438152bd323df1ff5a3 (diff) |
Add support for object sections
Sections are an optimization mechanism that allows the partitioning of
data members of a persistent class into groups that can be separately
loaded and/or updated.
Diffstat (limited to 'odb/polymorphic-map.hxx')
-rw-r--r-- | odb/polymorphic-map.hxx | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/odb/polymorphic-map.hxx b/odb/polymorphic-map.hxx index 5c3e434..3c0883f 100644 --- a/odb/polymorphic-map.hxx +++ b/odb/polymorphic-map.hxx @@ -149,7 +149,8 @@ namespace odb }; template <typename T, database_id DB> - bool dispatch_impl ( + bool + dispatch_impl ( typename polymorphic_concrete_info< typename object_traits<T>::root_type>::call_type c, database& db, @@ -235,6 +236,37 @@ namespace odb return r; } + + template <typename T, database_id DB, typename ST> + void + section_load_impl (odb::connection& conn, + typename object_traits<T>::root_type& obj, + bool top) + { + typedef object_traits_impl<T, DB> derived_traits; + typedef typename derived_traits::statements_type statements_type; + typedef typename statements_type::connection_type connection_type; + + connection_type& c (static_cast<connection_type&> (conn)); + statements_type& sts (c.statement_cache ().template find_object<T> ()); + + ST::load (sts.extra_statement_cache (), static_cast<T&> (obj), top); + } + + template <typename T, database_id DB, typename ST> + void + section_update_impl (odb::connection& conn, + const typename object_traits<T>::root_type& obj) + { + typedef object_traits_impl<T, DB> derived_traits; + typedef typename derived_traits::statements_type statements_type; + typedef typename statements_type::connection_type connection_type; + + connection_type& c (static_cast<connection_type&> (conn)); + statements_type& sts (c.statement_cache ().template find_object<T> ()); + + ST::update (sts.extra_statement_cache (), static_cast<const T&> (obj)); + } } #include <odb/polymorphic-map.ixx> |