1 files changed, 60 insertions, 0 deletions
diff --git a/libodb-sqlite/odb/sqlite/statement-cache.txx b/libodb-sqlite/odb/sqlite/statement-cache.txx
new file mode 100644
index 0000000..c089e32
--- /dev/null
+++ b/libodb-sqlite/odb/sqlite/statement-cache.txx
@@ -0,0 +1,60 @@
+// file      : odb/sqlite/statement-cache.txx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#include <odb/sqlite/database.hxx>
+
+namespace odb
+{
+  namespace sqlite
+  {
+    template <typename T>
+    typename object_traits_impl<T, id_sqlite>::statements_type&
+    statement_cache::
+    find_object ()
+    {
+      typedef
+      typename object_traits_impl<T, id_sqlite>::statements_type
+      statements_type;
+
+      // Clear the cache if the database version has changed. This
+      // makes sure we don't re-use statements that correspond to
+      // the old schema.
+      //
+      if (version_seq_ != conn_.database ().schema_version_sequence ())
+      {
+        map_.clear ();
+        version_seq_ = conn_.database ().schema_version_sequence ();
+      }
+
+      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 ()
+    {
+      // We don't cache any statements for views so no need to clear
+      // the cache.
+
+      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;
+    }
+  }
+}