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// file : odb/object-result.txx
// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#include <odb/session.hxx>
#include <odb/cache-traits.hxx>
namespace odb
{
//
// object_result_impl
//
template <typename T>
object_result_impl<T>::
~object_result_impl ()
{
}
template <typename T>
typename object_result_impl<T>::pointer_type&
object_result_impl<T>::
current ()
{
if (pointer_traits::null_ptr (current_) && !end_)
{
if (!session::has_current ())
{
pointer_type p (object_traits::create ());
object_type& obj (pointer_traits::get_ref (p));
current (p);
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
{
pointer_type p (object_traits::create ());
typename pointer_cache_traits<pointer_type>::insert_guard ig (
pointer_cache_traits<pointer_type>::insert (database (), id, p));
object_type& obj (pointer_traits::get_ref (p));
current (p);
load (obj, false);
ig.release ();
}
}
}
return current_;
}
//
// object_result_impl_no_id
//
template <typename T>
object_result_impl_no_id<T>::
~object_result_impl_no_id ()
{
}
template <typename T>
typename object_result_impl_no_id<T>::pointer_type&
object_result_impl_no_id<T>::
current ()
{
if (pointer_traits::null_ptr (current_) && !end_)
{
// Objects without ids are not stored in session cache.
//
pointer_type p (object_traits::create ());
object_type& obj (pointer_traits::get_ref (p));
current (p);
load (obj);
}
return current_;
}
//
// object_result_iterator
//
template <typename T, typename ID>
void object_result_iterator<T, ID>::
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, false);
ig.release ();
}
}
}
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