summaryrefslogtreecommitdiff
path: root/libodb-sqlite/odb/sqlite/simple-object-statements.txx
diff options
context:
space:
mode:
Diffstat (limited to 'libodb-sqlite/odb/sqlite/simple-object-statements.txx')
-rw-r--r--libodb-sqlite/odb/sqlite/simple-object-statements.txx146
1 files changed, 146 insertions, 0 deletions
diff --git a/libodb-sqlite/odb/sqlite/simple-object-statements.txx b/libodb-sqlite/odb/sqlite/simple-object-statements.txx
new file mode 100644
index 0000000..b80944d
--- /dev/null
+++ b/libodb-sqlite/odb/sqlite/simple-object-statements.txx
@@ -0,0 +1,146 @@
+// file : odb/sqlite/simple-object-statements.txx
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#include <cstring> // std::memset
+
+#include <odb/callback.hxx>
+#include <odb/exceptions.hxx>
+
+#include <odb/sqlite/connection.hxx>
+#include <odb/sqlite/traits-calls.hxx>
+
+namespace odb
+{
+ namespace sqlite
+ {
+ //
+ // optimistic_data
+ //
+
+ template <typename T>
+ optimistic_data<T, true>::
+ optimistic_data (bind* b)
+ : id_image_binding_ (
+ b,
+ object_traits::id_column_count +
+ object_traits::managed_optimistic_column_count)
+ {
+ }
+
+ //
+ // object_statements
+ //
+
+ template <typename T>
+ object_statements<T>::
+ ~object_statements ()
+ {
+ }
+
+ template <typename T>
+ object_statements<T>::
+ object_statements (connection_type& conn)
+ : object_statements_base (conn),
+ select_image_binding_ (select_image_bind_, select_column_count),
+ insert_image_binding_ (insert_image_bind_, insert_column_count),
+ update_image_binding_ (update_image_bind_,
+ update_column_count + id_column_count +
+ managed_optimistic_column_count),
+ id_image_binding_ (update_image_bind_ + update_column_count,
+ id_column_count),
+ od_ (update_image_bind_ + update_column_count)
+ {
+ image_.version = 0;
+ select_image_version_ = 0;
+ insert_image_version_ = 0;
+ update_image_version_ = 0;
+ update_id_image_version_ = 0;
+
+ id_image_.version = 0;
+ id_image_version_ = 0;
+
+ std::memset (insert_image_bind_, 0, sizeof (insert_image_bind_));
+ std::memset (update_image_bind_, 0, sizeof (update_image_bind_));
+ std::memset (select_image_bind_, 0, sizeof (select_image_bind_));
+ std::memset (
+ select_image_truncated_, 0, sizeof (select_image_truncated_));
+
+ for (std::size_t i (0); i < select_column_count; ++i)
+ select_image_bind_[i].truncated = select_image_truncated_ + i;
+ }
+
+ template <typename T>
+ template <typename STS>
+ void object_statements<T>::
+ load_delayed_ (const schema_version_migration* svm)
+ {
+ database& db (connection ().database ());
+
+ delayed_loads dls;
+ swap_guard sg (*this, dls);
+
+ while (!dls.empty ())
+ {
+ delayed_load l (dls.back ());
+ typename pointer_cache_traits::insert_guard ig (l.pos);
+ dls.pop_back ();
+
+ if (l.loader == 0)
+ {
+ object_traits_calls<T> tc (svm);
+
+ if (!tc.find_ (static_cast<STS&> (*this), &l.id))
+ throw object_not_persistent ();
+
+ object_traits::callback (db, *l.obj, callback_event::pre_load);
+
+ // Our calls to init/load below can result in additional delayed
+ // loads being added to the delayed_ vector. We need to process
+ // those before we call the post callback.
+ //
+ tc.init (*l.obj, image (), &db);
+
+ // Load containers, etc.
+ //
+ tc.load_ (static_cast<STS&> (*this), *l.obj, false);
+
+ if (!delayed_.empty ())
+ load_delayed_<STS> (svm);
+
+ // Temporarily unlock the statement for the post_load call so that
+ // it can load objects of this type recursively. This is safe to do
+ // because we have completely loaded the current object. Also the
+ // delayed_ list is clear before the unlock and should be clear on
+ // re-lock (since a callback can only call public API functions
+ // which will make sure all the delayed loads are processed before
+ // returning).
+ //
+ {
+ auto_unlock u (*this);
+ object_traits::callback (db, *l.obj, callback_event::post_load);
+ }
+ }
+ else
+ l.loader (db, l.id, *l.obj, svm);
+
+ pointer_cache_traits::load (ig.position ());
+ ig.release ();
+ }
+ }
+
+ template <typename T>
+ void object_statements<T>::
+ clear_delayed_ ()
+ {
+ // Remove the objects from the session cache.
+ //
+ for (typename delayed_loads::iterator i (delayed_.begin ()),
+ e (delayed_.end ()); i != e; ++i)
+ {
+ pointer_cache_traits::erase (i->pos);
+ }
+
+ delayed_.clear ();
+ }
+ }
+}