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Diffstat (limited to 'odb/qt/containers/qhash-traits.hxx')
-rw-r--r-- | odb/qt/containers/qhash-traits.hxx | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/odb/qt/containers/qhash-traits.hxx b/odb/qt/containers/qhash-traits.hxx new file mode 100644 index 0000000..c34b768 --- /dev/null +++ b/odb/qt/containers/qhash-traits.hxx @@ -0,0 +1,129 @@ +// file : odb/qt/containers/qhash-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_QHASH_TRAITS_HXX +#define ODB_QT_CONTAINER_QHASH_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <QHash> +#include <QMultiHash> + +#include <odb/container-traits.hxx> + +namespace odb +{ + template <typename Key, typename T> + class access::container_traits<QHash<Key, T> > + { + public: + static container_kind const kind = ck_map; + + typedef QHash<Key, T> container_type; + typedef Key key_type; + typedef T value_type; + + typedef map_functions<key_type, value_type> functions; + + public: + static void + persist (const container_type& c, const functions& f) + { + for (typename container_type::const_iterator i (c.begin ()), + e (c.end ()); i != e; ++i) + f.insert_one (i.key (), i.value ()); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + key_type k; + value_type v; + more = f.load_all (k, v); + c.insert (k, v); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_all (); + + for (typename container_type::const_iterator i (c.begin ()), + e (c.end ()); i != e; ++i) + f.insert_one (i.key (), i.value ()); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; + + // @@ QMultiHash guarantees elements to be stored in reverse order of + // insertion. The current implementation of the generated code does + // not guarantee this. + // + template <typename Key, typename T> + class access::container_traits<QMultiHash<Key, T> > + { + public: + static container_kind const kind = ck_multimap; + + typedef QMultiHash<Key, T> container_type; + typedef Key key_type; + typedef T value_type; + + typedef map_functions<key_type, value_type> functions; + + public: + static void + persist (const container_type& c, const functions& f) + { + for (typename container_type::const_iterator i (c.begin ()), + e (c.end ()); i != e; ++i) + f.insert_one (i.key (), i.value ()); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + key_type k; + value_type v; + more = f.load_all (k, v); + c.insert (k, v); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_all (); + + for (typename container_type::const_iterator i (c.begin ()), + e (c.end ()); i != e; ++i) + f.insert_one (i.key (), i.value ()); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; +} + +#include <odb/post.hxx> + +#endif // ODB_QT_CONTAINER_QHASH_TRAITS_HXX |