From 93392ca601a0cab8517a4ca8d163df4b41dd3e49 Mon Sep 17 00:00:00 2001 From: Boris Kolpackov Date: Sat, 6 Nov 2010 17:57:02 +0200 Subject: Add container traits interface and implementation Implementation is provided for the standard C++ containers. --- odb/container-traits.hxx | 181 ++++++++++++++++++++++++++++++++++++++++++++++ odb/forward.hxx | 3 + odb/std-list-traits.hxx | 73 +++++++++++++++++++ odb/std-map-traits.hxx | 130 +++++++++++++++++++++++++++++++++ odb/std-set-traits.hxx | 124 +++++++++++++++++++++++++++++++ odb/std-vector-traits.hxx | 69 ++++++++++++++++++ 6 files changed, 580 insertions(+) create mode 100644 odb/container-traits.hxx create mode 100644 odb/std-list-traits.hxx create mode 100644 odb/std-map-traits.hxx create mode 100644 odb/std-set-traits.hxx create mode 100644 odb/std-vector-traits.hxx (limited to 'odb') diff --git a/odb/container-traits.hxx b/odb/container-traits.hxx new file mode 100644 index 0000000..0d88731 --- /dev/null +++ b/odb/container-traits.hxx @@ -0,0 +1,181 @@ +// file : odb/container-traits.hxx +// author : Boris Kolpackov +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_CONTAINER_TRAITS_HXX +#define ODB_CONTAINER_TRAITS_HXX + +#include + +#include + +namespace odb +{ + // Keep this enum synchronized with the one in odb/odb/context.hxx. + // + enum container_kind + { + ck_ordered, + ck_set, + ck_multiset, + ck_map, + ck_multimap + }; + + // + // Container API provided by the generated code. + // + + // Ordered containers. + // + template + struct ordered_functions + { + typedef I index_type; + typedef V value_type; + + void + insert_one (I index, const V& value) const + { + insert_one_ (index, value, data_); + } + + bool + load_all (I& next_index, V& next_value) const + { + return load_all_ (next_index, next_value, data_); + } + + void + delete_all () const + { + delete_all_ (data_); + } + + // Implementation details. + // + public: + typedef void (*insert_one_type) (I, const V&, void*); + typedef bool (*load_all_type) (I&, V&, void*); + typedef void (*delete_all_type) (void*); + + ordered_functions (void* data, + insert_one_type io, + load_all_type la, + delete_all_type da) + : data_ (data), insert_one_ (io), load_all_ (la), delete_all_ (da) + { + } + + private: + void* data_; + insert_one_type insert_one_; + load_all_type load_all_; + delete_all_type delete_all_; + }; + + // Set/multiset containers. + // + template + struct set_functions + { + typedef V value_type; + + void + insert_one (const V& value) const + { + insert_one_ (value, data_); + } + + bool + load_all (V& next_value) const + { + return load_all_ (next_value, data_); + } + + void + delete_all () const + { + delete_all_ (data_); + } + + // Implementation details. + // + public: + typedef void (*insert_one_type) (const V&, void*); + typedef bool (*load_all_type) (V&, void*); + typedef void (*delete_all_type) (void*); + + set_functions (void* data, + insert_one_type io, + load_all_type la, + delete_all_type da) + : data_ (data), insert_one_ (io), load_all_ (la), delete_all_ (da) + { + } + + private: + void* data_; + insert_one_type insert_one_; + load_all_type load_all_; + delete_all_type delete_all_; + }; + + // Map/multimap containers. + // + template + struct map_functions + { + typedef K key_type; + typedef V value_type; + + void + insert_one (const K& key, const V& value) const + { + insert_one_ (key, value, data_); + } + + bool + load_all (K& next_key, V& next_value) const + { + return load_all_ (next_key, next_value, data_); + } + + void + delete_all () const + { + delete_all_ (data_); + } + + // Implementation details. + // + public: + typedef void (*insert_one_type) (const K&, const V&, void*); + typedef bool (*load_all_type) (K&, V&, void*); + typedef void (*delete_all_type) (void*); + + map_functions (void* data, + insert_one_type io, + load_all_type la, + delete_all_type da) + : data_ (data), insert_one_ (io), load_all_ (la), delete_all_ (da) + { + } + + private: + void* data_; + insert_one_type insert_one_; + load_all_type load_all_; + delete_all_type delete_all_; + }; +} + +#include + +#include +#include +#include +#include + +#endif // ODB_CONTAINER_TRAITS_HXX diff --git a/odb/forward.hxx b/odb/forward.hxx index e2bef03..bd6cbcb 100644 --- a/odb/forward.hxx +++ b/odb/forward.hxx @@ -30,6 +30,9 @@ namespace odb template class composite_value_traits; + + template + class container_traits; }; } diff --git a/odb/std-list-traits.hxx b/odb/std-list-traits.hxx new file mode 100644 index 0000000..2f6ec96 --- /dev/null +++ b/odb/std-list-traits.hxx @@ -0,0 +1,73 @@ +// file : odb/std-list-traits.hxx +// author : Boris Kolpackov +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_STD_LIST_TRAITS_HXX +#define ODB_STD_LIST_TRAITS_HXX + +#include + +#include + +#include + +namespace odb +{ + template + class access::container_traits > + { + public: + static container_kind const kind = ck_ordered; + + typedef V value_type; + typedef typename std::list::size_type index_type; + typedef std::list container_type; + + typedef ordered_functions functions; + + public: + static void + persist (const container_type& c, const functions& f) + { + index_type i (0); + for (typename container_type::const_iterator j (c.begin ()), + e (c.end ()); j != e; ++j) + f.insert_one (i++, *j); + } + + 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.load_all (dummy, c.back ()); + } + } + + static void + update (const container_type& c, const functions& f) + { + f.delete_all (); + + index_type i (0); + for (typename container_type::const_iterator j (c.begin ()), + e (c.end ()); j != e; ++j) + f.insert_one (i++, *j); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; +} + +#include + +#endif // ODB_STD_LIST_TRAITS_HXX diff --git a/odb/std-map-traits.hxx b/odb/std-map-traits.hxx new file mode 100644 index 0000000..4f71868 --- /dev/null +++ b/odb/std-map-traits.hxx @@ -0,0 +1,130 @@ +// file : odb/std-map-traits.hxx +// author : Boris Kolpackov +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_STD_MAP_TRAITS_HXX +#define ODB_STD_MAP_TRAITS_HXX + +#include + +#include + +#include + +namespace odb +{ + template + class access::container_traits > + { + public: + static container_kind const kind = ck_map; + + typedef K key_type; + typedef V value_type; + typedef std::map container_type; + typedef typename container_type::value_type pair_type; + + typedef map_functions 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->first, i->second); + } + + 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 (pair_type (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->first, i->second); + } + + 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 + class access::container_traits > + { + public: + static container_kind const kind = ck_multimap; + + typedef K key_type; + typedef V value_type; + typedef std::multimap container_type; + typedef typename container_type::value_type pair_type; + + typedef map_functions 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->first, i->second); + } + + 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 (pair_type (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->first, i->second); + } + + static void + erase (const functions& f) + { + f.delete_all (); + } + }; +} + +#include + +#endif // ODB_STD_MAP_TRAITS_HXX 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 +// 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 + +#include + +#include + +namespace odb +{ + template + class access::container_traits > + { + public: + static container_kind const kind = ck_set; + + typedef V value_type; + typedef std::set container_type; + + typedef set_functions 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 + class access::container_traits > + { + public: + static container_kind const kind = ck_multiset; + + typedef V value_type; + typedef std::multiset container_type; + + typedef set_functions 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 + +#endif // ODB_STD_SET_TRAITS_HXX diff --git a/odb/std-vector-traits.hxx b/odb/std-vector-traits.hxx new file mode 100644 index 0000000..6c439c8 --- /dev/null +++ b/odb/std-vector-traits.hxx @@ -0,0 +1,69 @@ +// file : odb/std-vector-traits.hxx +// author : Boris Kolpackov +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_STD_VECTOR_TRAITS_HXX +#define ODB_STD_VECTOR_TRAITS_HXX + +#include + +#include + +#include + +namespace odb +{ + template + class access::container_traits > + { + public: + static container_kind const kind = ck_ordered; + + typedef V value_type; + typedef typename std::vector::size_type index_type; + typedef std::vector container_type; + + typedef ordered_functions 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_one (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.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 + +#endif // ODB_STD_VECTOR_TRAITS_HXX -- cgit v1.1