Polymorphic inheritance support

1 files changed, 43 insertions, 0 deletions

diff --git a/odb/mysql/statement-cache.txx b/odb/mysql/statement-cache.txx
new file mode 100644
index 0000000..3acc5fe
--- /dev/null
+++ b/odb/mysql/statement-cache.txx
@@ -0,0 +1,43 @@
+// file      : odb/mysql/statement-cache.txx
+// copyright : Copyright (c) 2005-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+namespace odb
+{
+  namespace mysql
+  {
+    template <typename T>
+    typename object_traits<T>::statements_type& statement_cache::
+    find_object ()
+    {
+      typedef typename object_traits<T>::statements_type statements_type;
+
+      map::iterator i (map_.find (&typeid (T)));
+
+      if (i != map_.end ())
+        return static_cast<statements_type&> (*i->second);
+
+      details::shared_ptr<statements_type> p (
+        new (details::shared) statements_type (conn_));
+
+      map_.insert (map::value_type (&typeid (T), p));
+      return *p;
+    }
+
+    template <typename T>
+    view_statements<T>& statement_cache::
+    find_view ()
+    {
+      map::iterator i (map_.find (&typeid (T)));
+
+      if (i != map_.end ())
+        return static_cast<view_statements<T>&> (*i->second);
+
+      details::shared_ptr<view_statements<T> > p (
+        new (details::shared) view_statements<T> (conn_));
+
+      map_.insert (map::value_type (&typeid (T), p));
+      return *p;
+    }
+  }
+}