From 9c275a93cec797a021571ba8545906e0b4ffbfbc Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 5 Sep 2011 10:20:47 +0200
Subject: Support for views; native part

---
 odb/object-result.txx | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 odb/object-result.txx

(limited to 'odb/object-result.txx')

diff --git a/odb/object-result.txx b/odb/object-result.txx
new file mode 100644
index 0000000..bd4e95e
--- /dev/null
+++ b/odb/object-result.txx
@@ -0,0 +1,91 @@
+// file      : odb/object-result.txx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#include <odb/session.hxx>
+#include <odb/cache-traits.hxx>
+
+namespace odb
+{
+  //
+  // result_impl
+  //
+
+  template <typename T>
+  result_impl<T, class_object>::
+  ~result_impl ()
+  {
+  }
+
+  template <typename T>
+  typename result_impl<T, class_object>::pointer_type&
+  result_impl<T, class_object>::
+  current ()
+  {
+    typedef typename object_traits::pointer_type unrestricted_pointer_type;
+    typedef typename object_traits::pointer_traits unrestricted_pointer_traits;
+
+    if (pointer_traits::null_ptr (current_) && !end_)
+    {
+      if (!session::has_current ())
+      {
+        unrestricted_pointer_type up (object_traits::create ());
+        object_type& obj (unrestricted_pointer_traits::get_ref (up));
+        current (pointer_type (up));
+        load (obj);
+      }
+      else
+      {
+        // First check the session.
+        //
+        const id_type& id (load_id ());
+
+        pointer_type p (
+          pointer_cache_traits<pointer_type>::find (database (), id));
+
+        if (!pointer_traits::null_ptr (p))
+          current (p);
+        else
+        {
+          unrestricted_pointer_type up (object_traits::create ());
+
+          typename
+            pointer_cache_traits<unrestricted_pointer_type>::insert_guard ig (
+              pointer_cache_traits<unrestricted_pointer_type>::insert (
+                database (), id, up));
+
+          object_type& obj (unrestricted_pointer_traits::get_ref (up));
+          current (pointer_type (up));
+          load (obj);
+          ig.release ();
+        }
+      }
+    }
+
+    return current_;
+  }
+
+  //
+  // result_iterator
+  //
+
+  template <typename T>
+  void result_iterator<T, class_object>::
+  load (object_type& obj)
+  {
+    if (res_->end ())
+      return;
+
+    if (!session::has_current ())
+      res_->load (obj);
+    else
+    {
+      typename reference_cache_traits<object_type>::insert_guard ig (
+        reference_cache_traits<object_type>::insert (
+          res_->database (), res_->load_id (), obj));
+      res_->load (obj);
+      ig.release ();
+    }
+  }
+}
-- 
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