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diff --git a/odb/qt/smart-ptr/lazy-pointer-traits.hxx b/odb/qt/smart-ptr/lazy-pointer-traits.hxx
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+++ b/odb/qt/smart-ptr/lazy-pointer-traits.hxx
@@ -0,0 +1,63 @@
+// file      : odb/qt/smart-ptr/lazy-pointer-traits.hxx
+// author    : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_QT_SMART_PTR_LAZY_POINTER_TRAITS_HXX
+#define ODB_QT_SMART_PTR_LAZY_POINTER_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <odb/pointer-traits.hxx>
+#include <odb/qt/smart-ptr/lazy-ptr.hxx>
+
+namespace odb
+{
+  template <typename T>
+  class pointer_traits<QLazySharedPointer<T> >
+  {
+  public:
+    static const pointer_kind kind = pk_shared;
+    static const bool lazy = true;
+
+    typedef T element_type;
+    typedef QLazySharedPointer<element_type> pointer_type;
+    typedef QSharedPointer<element_type> eager_pointer_type;
+
+    static bool
+    null_ptr (const pointer_type& p)
+    {
+      return !p;
+    }
+
+    template <class O /* = T */>
+    static typename object_traits<O>::id_type
+    object_id (const pointer_type& p)
+    {
+      return p.template objectId<O> ();
+    }
+  };
+
+  template <typename T>
+  class pointer_traits<QLazyWeakPointer<T> >
+  {
+  public:
+    static const pointer_kind kind = pk_weak;
+    static const bool lazy = true;
+
+    typedef T element_type;
+    typedef QLazyWeakPointer<element_type> pointer_type;
+    typedef QLazySharedPointer<element_type> strong_pointer_type;
+    typedef QWeakPointer<element_type> eager_pointer_type;
+
+    static strong_pointer_type
+    lock (const pointer_type& p)
+    {
+      return p.toStrongRef ();
+    }
+  };
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_QT_SMART_PTR_LAZY_POINTER_TRAITS_HXX