diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2010-11-06 17:57:02 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2010-11-06 17:57:02 +0200 |
commit | 93392ca601a0cab8517a4ca8d163df4b41dd3e49 (patch) | |
tree | ffa58bd3fd7796fd98091f1d890bf410300a746e /odb/std-set-traits.hxx | |
parent | 116e353d07f3f65e3d9e29e37efedc37f301e243 (diff) |
Add container traits interface and implementation
Implementation is provided for the standard C++ containers.
Diffstat (limited to 'odb/std-set-traits.hxx')
-rw-r--r-- | odb/std-set-traits.hxx | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/odb/std-set-traits.hxx b/odb/std-set-traits.hxx new file mode 100644 index 0000000..0c8071a --- /dev/null +++ b/odb/std-set-traits.hxx @@ -0,0 +1,124 @@ +// file : odb/std-set-traits.hxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_STD_SET_TRAITS_HXX +#define ODB_STD_SET_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <set> + +#include <odb/container-traits.hxx> + +namespace odb +{ + template <typename V> + class access::container_traits<std::set<V> > + { + public: + static container_kind const kind = ck_set; + + typedef V value_type; + typedef std::set<V> container_type; + + typedef set_functions<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); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + value_type v; + more = f.load_all (v); + c.insert (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); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; + + // C++-03 does not guarantee insertion order of equal values but C++-0x + // changes that. The current implementation in the generated code does + // not guarantee this either. + // + template <typename V> + class access::container_traits<std::multiset<V> > + { + public: + static container_kind const kind = ck_multiset; + + typedef V value_type; + typedef std::multiset<V> container_type; + + typedef set_functions<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); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + value_type v; + more = f.load_all (v); + c.insert (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); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; +} + +#include <odb/post.hxx> + +#endif // ODB_STD_SET_TRAITS_HXX |