From 851cbe3927b987ec992bbbb69bd62224bf4a0dc3 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 23 Apr 2012 16:48:01 +0200
Subject: Polymorphic inheritance support

---
 odb/sqlite/polymorphic-object-result.hxx | 87 ++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 odb/sqlite/polymorphic-object-result.hxx

(limited to 'odb/sqlite/polymorphic-object-result.hxx')

diff --git a/odb/sqlite/polymorphic-object-result.hxx b/odb/sqlite/polymorphic-object-result.hxx
new file mode 100644
index 0000000..54f4092
--- /dev/null
+++ b/odb/sqlite/polymorphic-object-result.hxx
@@ -0,0 +1,87 @@
+// file      : odb/sqlite/polymorphic-object-result.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_SQLITE_POLYMORPHIC_OBJECT_RESULT_HXX
+#define ODB_SQLITE_POLYMORPHIC_OBJECT_RESULT_HXX
+
+#include <odb/pre.hxx>
+
+#include <cstddef> // std::size_t
+
+#include <odb/polymorphic-object-result.hxx>
+
+#include <odb/details/shared-ptr.hxx>
+
+#include <odb/sqlite/version.hxx>
+#include <odb/sqlite/forward.hxx> // query
+#include <odb/sqlite/result.hxx>
+#include <odb/sqlite/statement.hxx>
+
+namespace odb
+{
+  namespace sqlite
+  {
+    template <typename T>
+    class polymorphic_object_result_impl:
+      public odb::polymorphic_object_result_impl<T>,
+      public result_impl_base
+    {
+    public:
+      typedef odb::polymorphic_object_result_impl<T> base_type;
+
+      typedef typename base_type::object_type object_type;
+      typedef typename base_type::object_traits object_traits;
+      typedef typename base_type::id_type id_type;
+
+      typedef typename base_type::pointer_type pointer_type;
+      typedef typename base_type::pointer_traits pointer_traits;
+
+      typedef typename base_type::root_type root_type;
+      typedef typename base_type::root_traits root_traits;
+      typedef typename base_type::discriminator_type discriminator_type;
+
+      typedef typename object_traits::statements_type statements_type;
+
+      virtual
+      ~polymorphic_object_result_impl ();
+
+      polymorphic_object_result_impl (const query&,
+                                      details::shared_ptr<select_statement>,
+                                      statements_type&);
+
+      virtual void
+      load (object_type*, bool fetch);
+
+      virtual id_type
+      load_id ();
+
+      virtual discriminator_type
+      load_discriminator ();
+
+      virtual void
+      next ();
+
+      virtual void
+      cache ();
+
+      virtual std::size_t
+      size ();
+
+      using base_type::current;
+
+    private:
+      void
+      load_image ();
+
+    private:
+      statements_type& statements_;
+    };
+  }
+}
+
+#include <odb/sqlite/polymorphic-object-result.txx>
+
+#include <odb/post.hxx>
+
+#endif // ODB_SQLITE_POLYMORPHIC_OBJECT_RESULT_HXX
-- 
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