diff options
author | Constantin Michael <constantin@codesynthesis.com> | 2011-04-21 09:19:17 +0200 |
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committer | Constantin Michael <constantin@codesynthesis.com> | 2011-04-22 14:40:25 +0200 |
commit | 2d1104b1e3cfbf394981c39d8828598599dee5d6 (patch) | |
tree | aaa9fdf87e9af2d15831b80c0c76c3ff3641c892 /odb/qt/containers/qlist-traits.hxx | |
parent | 7db38e8c622c2cd23d7a38e3cf70cb1b00dbc838 (diff) |
Add qt/container implementation
Diffstat (limited to 'odb/qt/containers/qlist-traits.hxx')
-rw-r--r-- | odb/qt/containers/qlist-traits.hxx | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/odb/qt/containers/qlist-traits.hxx b/odb/qt/containers/qlist-traits.hxx new file mode 100644 index 0000000..9ac7cbf --- /dev/null +++ b/odb/qt/containers/qlist-traits.hxx @@ -0,0 +1,73 @@ +// file : odb/qt/containers/qlist-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_CONTAINER_QLIST_TRAITS_HXX +#define ODB_QT_CONTAINER_QLIST_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <QList> + +#include <odb/container-traits.hxx> + +namespace odb +{ + template <typename T> + class access::container_traits<QList<T> > + { + public: + static const container_kind kind = ck_ordered; + + typedef QList<T> container_type; + + typedef T value_type; + typedef typename container_type::size_type index_type; + + typedef ordered_functions<index_type, value_type> functions; + + public: + static void + persist (const container_type& c, const functions& f) + { + // Index based access is just as fast as iterator based access for + // QList. + // + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert_one (i, c[i]); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + index_type dummy; + c.append (value_type ()); + more = f.load_all (dummy, c.back ()); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_all (); + + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert_one (i, c[i]); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; +} + +#include <odb/post.hxx> + +#endif // ODB_QT_CONTAINER_QLIST_TRAITS_HXX |