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// file : odb/vector-traits.txx
// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
namespace odb
{
template <typename V, typename A LIBODB_VECTOR_ARG_DECL>
void access::container_traits<vector<V, A LIBODB_VECTOR_ARG_USE> >::
update (const container_type& c, const functions& f)
{
bool u (false); // Updated flag.
if (c._tracking ())
{
const vector_impl& impl (c._impl ());
for (std::size_t i (0), n (impl.size ()); i < n; ++i)
{
vector_impl::element_state_type s (impl.state (i));
switch (s)
{
case vector_impl::state_unchanged:
{
break;
}
case vector_impl::state_inserted:
{
f.insert (i, c[static_cast<index_type> (i)]);
u = u || true;
break;
}
case vector_impl::state_updated:
{
f.update (i, c[static_cast<index_type> (i)]);
u = u || true;
break;
}
case vector_impl::state_erased:
{
f.delete_ (i); // Delete from i onwards.
u = u || true;
break;
}
}
// We delete all trailing elements in one go.
//
if (s == vector_impl::state_erased)
break;
}
}
else
{
// Fall back to delete all/insert all.
//
f.delete_ (0);
for (index_type i (0), n (c.size ()); i < n; ++i)
f.insert (i, c[i]);
u = true;
}
// Arm the rollback callback and (re)start change tracking.
//
if (u)
{
c._arm (transaction::current ());
c._start ();
}
}
}
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