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Diffstat (limited to 'libodb/odb/std-vector-traits.hxx')
-rw-r--r-- | libodb/odb/std-vector-traits.hxx | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/libodb/odb/std-vector-traits.hxx b/libodb/odb/std-vector-traits.hxx new file mode 100644 index 0000000..c6bb39e --- /dev/null +++ b/libodb/odb/std-vector-traits.hxx @@ -0,0 +1,123 @@ +// file : odb/std-vector-traits.hxx +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_STD_VECTOR_TRAITS_HXX +#define ODB_STD_VECTOR_TRAITS_HXX + +#include <odb/pre.hxx> + +#include <vector> + +#include <odb/container-traits.hxx> + +namespace odb +{ + template <typename V, typename A> + class access::container_traits<std::vector<V, A> > + { + public: + static const container_kind kind = ck_ordered; + static const bool smart = false; + + typedef std::vector<V, A> container_type; + + typedef V 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) + { + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert (i, c[i]); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + index_type dummy; + c.push_back (value_type ()); + more = f.select (dummy, c.back ()); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_ (); + + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert (i, c[i]); + } + + static void + erase (const functions& f) + { + f.delete_ (); + } + }; + + // std::vector<bool> is special. + // + template <typename A> + class access::container_traits<std::vector<bool, A> > + { + public: + static const container_kind kind = ck_ordered; + static const bool smart = false; + + typedef std::vector<bool, A> container_type; + + typedef bool 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) + { + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert (i, c[i]); + } + + static void + load (container_type& c, bool more, const functions& f) + { + c.clear (); + + while (more) + { + index_type dummy; + value_type value; + more = f.select (dummy, value); + c.push_back (value); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_ (); + + for (index_type i (0), n (c.size ()); i < n; ++i) + f.insert (i, c[i]); + } + + static void + erase (const functions& f) + { + f.delete_ (); + } + }; +} + +#include <odb/post.hxx> + +#endif // ODB_STD_VECTOR_TRAITS_HXX |