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Diffstat (limited to 'odb/oracle/traits.hxx')
| -rw-r--r-- | odb/oracle/traits.hxx | 1491 |
1 files changed, 0 insertions, 1491 deletions
diff --git a/odb/oracle/traits.hxx b/odb/oracle/traits.hxx deleted file mode 100644 index 8a1673c..0000000 --- a/odb/oracle/traits.hxx +++ /dev/null @@ -1,1491 +0,0 @@ -// file : odb/oracle/traits.hxx -// license : ODB NCUEL; see accompanying LICENSE file - -#ifndef ODB_ORACLE_TRAITS_HXX -#define ODB_ORACLE_TRAITS_HXX - -#include <odb/pre.hxx> - -#include <odb/details/config.hxx> // ODB_CXX11 - -#include <string> -#include <vector> -#include <cstddef> // std::size_t -#include <cstring> // std::memcpy, std::memset, std::strlen - -#ifdef ODB_CXX11 -# include <array> -#endif - -#include <odb/traits.hxx> -#include <odb/wrapper-traits.hxx> - -#include <odb/oracle/version.hxx> -#include <odb/oracle/oracle-types.hxx> - -#include <odb/details/buffer.hxx> -#include <odb/details/wrapper-p.hxx> - -#include <odb/oracle/details/export.hxx> -#include <odb/oracle/details/number.hxx> - -namespace odb -{ - namespace oracle - { - enum database_type_id - { - id_int32, - id_int64, - - id_big_int, - - id_float, - id_double, - - // Both large fixed-point and large floating point NUMBER and FLOAT - // values are mapped to this id. - // - id_big_float, - - id_date, - id_timestamp, - id_interval_ym, - id_interval_ds, - - id_string, - id_nstring, - - id_raw, - - id_blob, - id_clob, - id_nclob - }; - - // - // int_traits - // - - // Only mark fundamental unsigned integers as unsigned. In particular, - // treat enums as signed since in most cases and on most platforms the - // underlying integer type will be signed. On Windows with VC9 and up - // and with GCC, the __intN types are simply aliases for the respective - // standard integers so the below code will cover them as well. Also - // note that the ODB compiler performs a similar test, so if you change - // anything below you will probably also need to make a similar change - // there. - // - template <typename T> - struct int_traits {static const bool unsign = false;}; - - template <> - struct int_traits<bool> {static const bool unsign = true;}; - template <> - struct int_traits<unsigned char> {static const bool unsign = true;}; - template <> - struct int_traits<unsigned short> {static const bool unsign = true;}; - template <> - struct int_traits<unsigned int> {static const bool unsign = true;}; - template <> - struct int_traits<unsigned long> {static const bool unsign = true;}; - template <> - struct int_traits<unsigned long long> - { - static const bool unsign = true; - }; - - // - // image_traits - // - - template <typename T, database_type_id> - struct image_traits; - - // int32 - // - template <bool unsign> - struct int32_image_traits; - - template <> - struct int32_image_traits<false> - { - static const bind::buffer_type buffer_type = bind::integer; - typedef int image_type; - }; - - template <> - struct int32_image_traits<true> - { - static const bind::buffer_type buffer_type = bind::uinteger; - typedef unsigned int image_type; - }; - - template <typename T> - struct image_traits<T, id_int32>: int32_image_traits<int_traits<T>::unsign> - { - }; - - // int64 - // - template <bool unsign> - struct int64_image_traits; - - template <> - struct int64_image_traits<false> - { - static const bind::buffer_type buffer_type = bind::integer; - typedef long long image_type; - }; - - template <> - struct int64_image_traits<true> - { - static const bind::buffer_type buffer_type = bind::uinteger; - typedef unsigned long long image_type; - }; - - template <typename T> - struct image_traits<T, id_int64>: int64_image_traits<int_traits<T>::unsign> - { - }; - - // big_int - // - template <typename T> - struct image_traits<T, id_big_int> - { - // Image is a buffer containing native OCI NUMBER representation. - // - typedef char* image_type; - }; - - template <typename T> - struct image_traits<T, id_float> {typedef float image_type;}; - - template <typename T> - struct image_traits<T, id_double> {typedef double image_type;}; - - template <typename T> - struct image_traits<T, id_big_float> - { - // Image is a buffer containing the native OCI NUMBER representation. - // - typedef char* image_type; - }; - - template <typename T> - struct image_traits<T, id_date> - { - // Image is a buffer containing the native OCI DATE representation. This - // buffer has a fixed length of 7 bytes. - // - typedef char* image_type; - }; - - template <typename T> - struct image_traits<T, id_timestamp> - { - typedef datetime image_type; - }; - - template <typename T> - struct image_traits<T, id_interval_ym> - { - typedef interval_ym image_type; - }; - - template <typename T> - struct image_traits<T, id_interval_ds> - { - typedef interval_ds image_type; - }; - - template <typename T> - struct image_traits<T, id_string> {typedef char* image_type;}; - - template <typename T> - struct image_traits<T, id_nstring> {typedef char* image_type;}; - - template <typename T> - struct image_traits<T, id_raw> {typedef char* image_type;}; - - template <typename T> - struct image_traits<T, id_blob> {typedef lob_callback image_type;}; - - template <typename T> - struct image_traits<T, id_clob> {typedef lob_callback image_type;}; - - template <typename T> - struct image_traits<T, id_nclob> {typedef lob_callback image_type;}; - - // - // value_traits - // - - template <typename W, database_type_id, bool null_handler> - struct wrapped_value_traits; - - template <typename T, database_type_id> - struct default_value_traits; - - template <typename T, database_type_id, bool w = details::wrapper_p<T>::r> - struct select_traits; - - template <typename T, database_type_id ID> - struct select_traits<T, ID, false> - { - typedef default_value_traits<T, ID> type; - }; - - template <typename W, database_type_id ID> - struct select_traits<W, ID, true> - { - typedef - wrapped_value_traits<W, ID, wrapper_traits<W>::null_handler> - type; - }; - - template <typename T, database_type_id ID> - class value_traits: public select_traits<T, ID>::type - { - }; - - // The wrapped_value_traits specializations should be able to handle - // any value type which means we have to have every possible signature - // of the set_value() and set_image() functions. - // - template <typename W, database_type_id ID> - struct wrapped_value_traits<W, ID, false> - { - typedef wrapper_traits<W> wtraits; - typedef typename wtraits::unrestricted_wrapped_type wrapped_type; - - typedef W value_type; - typedef wrapped_type query_type; - typedef typename image_traits<wrapped_type, ID>::image_type image_type; - - typedef value_traits<wrapped_type, ID> vtraits; - - static void - set_value (W& v, const image_type& i, bool is_null) - { - vtraits::set_value (wtraits::set_ref (v), i, is_null); - } - - static void - set_image (image_type& i, bool& is_null, const W& v) - { - vtraits::set_image (i, is_null, wtraits::get_ref (v)); - } - - // big_int, big_float, string, nstring, raw. - // - static void - set_value (W& v, const char* i, std::size_t n, bool is_null) - { - vtraits::set_value (wtraits::set_ref (v), i, n, is_null); - } - - // string, nstring, raw. - // - static void - set_image (char* i, - std::size_t c, - std::size_t& n, - bool& is_null, - const W& v) - { - vtraits::set_image (i, c, n, is_null, wtraits::get_ref (v)); - } - - // big_int, big_float. - // - static void - set_image (char* i, std::size_t& n, bool& is_null, const W& v) - { - vtraits::set_image (i, n, is_null, wtraits::get_ref (v)); - } - - // blob, clob, nclob. - // - static void - set_value (W& v, result_callback_type& cb, void*& context, bool is_null) - { - vtraits::set_value (wtraits::set_ref (v), cb, context, is_null); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const W& v) - { - vtraits::set_image (cb, context, is_null, wtraits::get_ref (v)); - } - }; - - template <typename W, database_type_id ID> - struct wrapped_value_traits<W, ID, true> - { - typedef wrapper_traits<W> wtraits; - typedef typename wtraits::unrestricted_wrapped_type wrapped_type; - - typedef W value_type; - typedef wrapped_type query_type; - typedef typename image_traits<wrapped_type, ID>::image_type image_type; - - typedef value_traits<wrapped_type, ID> vtraits; - - static void - set_value (W& v, const image_type& i, bool is_null) - { - if (is_null) - wtraits::set_null (v); - else - vtraits::set_value (wtraits::set_ref (v), i, is_null); - } - - static void - set_image (image_type& i, bool& is_null, const W& v) - { - is_null = wtraits::get_null (v); - - if (!is_null) - vtraits::set_image (i, is_null, wtraits::get_ref (v)); - } - - // big_int, big_float, string, nstring, raw. - // - static void - set_value (W& v, const char* i, std::size_t n, bool is_null) - { - if (is_null) - wtraits::set_null (v); - else - vtraits::set_value (wtraits::set_ref (v), i, n, is_null); - } - - // string, nstring, raw. - // - static void - set_image (char* i, - std::size_t c, - std::size_t& n, - bool& is_null, - const W& v) - { - is_null = wtraits::get_null (v); - - if (!is_null) - vtraits::set_image (i, c, n, is_null, wtraits::get_ref (v)); - } - - // big_int, big_float - // - static void - set_image (char* i, std::size_t& n, bool& is_null, const W& v) - { - is_null = wtraits::get_null (v); - - if (!is_null) - vtraits::set_image (i, n, is_null, wtraits::get_ref (v)); - } - - // blob, clob, nclob. - // - static void - set_value (W& v, result_callback_type& cb, void*& context, bool is_null) - { - if (is_null) - wtraits::set_null (v); - else - vtraits::set_value (wtraits::set_ref (v), cb, context, is_null); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const W& v) - { - is_null = wtraits::get_null (v); - - if (!is_null) - vtraits::set_image (cb, context, is_null, wtraits::get_ref (v)); - } - }; - - template <typename T, database_type_id ID> - struct default_value_traits - { - typedef T value_type; - typedef T query_type; - typedef typename image_traits<T, ID>::image_type image_type; - - static void - set_value (T& v, const image_type& i, bool is_null) - { - if (!is_null) - v = T (i); - else - v = T (); - } - - static void - set_image (image_type& i, bool& is_null, T v) - { - is_null = false; - i = image_type (v); - } - }; - - // id_big_int partial specialization. - // - template <typename T, bool unsign> - struct big_int_value_traits; - - template <typename T> - struct big_int_value_traits<T, false> - { - static void - set_value (T& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - v = static_cast<T> (details::number_to_int64 (b, n)); - else - v = T (); - } - - static void - set_image (char* b, std::size_t& n, bool& is_null, T v) - { - is_null = false; - details::int64_to_number (b, n, static_cast<long long> (v)); - } - }; - - template <typename T> - struct big_int_value_traits<T, true> - { - static void - set_value (T& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - v = static_cast<T> (details::number_to_uint64 (b, n)); - else - v = T (); - } - - static void - set_image (char* b, std::size_t& n, bool& is_null, T v) - { - is_null = false; - details::uint64_to_number (b, n, static_cast<unsigned long long> (v)); - } - }; - - template <typename T> - struct default_value_traits<T, id_big_int>: - big_int_value_traits<T, int_traits<T>::unsign> - { - typedef T value_type; - typedef T query_type; - typedef typename image_traits<T, id_big_int>::image_type image_type; - }; - - // std::string specialization. - // - class LIBODB_ORACLE_EXPORT string_value_traits - { - public: - typedef std::string value_type; - typedef std::string query_type; - typedef char* image_type; - - static void - set_value (std::string& v, - const char* b, - std::size_t n, - bool is_null) - { - if (!is_null) - v.assign (b, n); - else - v.erase (); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const std::string& v) - { - is_null = false; - n = v.size (); - - if (n > c) - n = c; - - if (n != 0) - std::memcpy (b, v.c_str (), n); - } - }; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<std::string, id_string>: - string_value_traits - { - }; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<std::string, id_nstring>: - string_value_traits - { - }; - - // char*/const char* specialization. - // - // Specialization for const char* which only supports initialization - // of an image from the value but not the other way around. This way - // we can pass such values to the queries. - // - class LIBODB_ORACLE_EXPORT c_string_value_traits - { - public: - typedef const char* value_type; - typedef char* image_type; - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const char* v) - { - is_null = false; - n = std::strlen (v); - - if (n > c) - n = c; - - if (n != 0) - std::memcpy (b, v, n); - } - }; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<char*, id_string>: - c_string_value_traits {}; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<char*, id_nstring>: - c_string_value_traits {}; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<const char*, id_string>: - c_string_value_traits {}; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<const char*, id_nstring>: - c_string_value_traits {}; - - // char[N] specializations. - // - struct LIBODB_ORACLE_EXPORT c_array_value_traits_base - { - static void - set_value (char* const& v, - const char* b, - std::size_t n, - bool is_null, - std::size_t N); - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const char* v, - std::size_t N); - }; - - template <std::size_t N> - struct c_array_value_traits - { - typedef char* value_type; - typedef char query_type[N]; - typedef details::buffer image_type; - - static void - set_value (char* const& v, - const char* b, - std::size_t n, - bool is_null) - { - c_array_value_traits_base::set_value (v, b, n, is_null, N); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const char* v) - { - c_array_value_traits_base::set_image (b, c, n, is_null, v, N); - } - }; - - template <std::size_t N> - struct default_value_traits<char[N], id_string>: - c_array_value_traits<N> {}; - - template <std::size_t N> - struct default_value_traits<char[N], id_nstring>: - c_array_value_traits<N> {}; - - // std::array<char, N> (string) specialization. - // -#ifdef ODB_CXX11 - template <std::size_t N> - struct std_array_value_traits - { - typedef std::array<char, N> value_type; - typedef std::array<char, N> query_type; - typedef details::buffer image_type; - - static void - set_value (value_type& v, - const char* b, - std::size_t n, - bool is_null) - { - c_array_value_traits_base::set_value (v.data (), b, n, is_null, N); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const value_type& v) - { - c_array_value_traits_base::set_image (b, c, n, is_null, v.data (), N); - } - }; - - template <std::size_t N> - struct default_value_traits<std::array<char, N>, id_string>: - std_array_value_traits<N> {}; - - template <std::size_t N> - struct default_value_traits<std::array<char, N>, id_nstring>: - std_array_value_traits<N> {}; -#endif - - // char specialization. - // - struct LIBODB_ORACLE_EXPORT char_value_traits - { - typedef char value_type; - typedef char query_type; - typedef details::buffer image_type; - - static void - set_value (char& v, - const char* b, - std::size_t n, - bool is_null) - { - c_array_value_traits_base::set_value (&v, b, n, is_null, 1); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - char v) - { - c_array_value_traits_base::set_image (b, c, n, is_null, &v, 1); - } - }; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<char, id_string>: - char_value_traits {}; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<char, id_nstring>: - char_value_traits {}; - - // std::vector<char> (buffer) specialization for RAW. - // - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<std::vector<char>, id_raw> - { - public: - typedef std::vector<char> value_type; - typedef std::vector<char> query_type; - typedef char* image_type; - - static void - set_value (value_type& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - v.assign (b, b + n); - else - v.clear (); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const value_type& v) - { - is_null = false; - n = v.size (); - - if (n > c) - n = c; - - // std::vector::data() may not be available in older compilers. - // - if (n != 0) - std::memcpy (b, &v.front (), n); - } - }; - - // std::vector<unsigned char> (buffer) specialization for RAW. - // - template <> - struct LIBODB_ORACLE_EXPORT - default_value_traits<std::vector<unsigned char>, id_raw> - { - typedef std::vector<unsigned char> value_type; - typedef std::vector<unsigned char> query_type; - typedef char* image_type; - - static void - set_value (value_type& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - { - const unsigned char* ub (reinterpret_cast<const unsigned char*> (b)); - v.assign (ub, ub + n); - } - else - v.clear (); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const value_type& v) - { - is_null = false; - n = v.size (); - - if (n > c) - n = c; - - // std::vector::data() may not be available in older compilers. - // - if (n != 0) - std::memcpy (b, &v.front (), n); - } - }; - - // char[N] (buffer) specialization for RAW. - // - template <std::size_t N> - struct default_value_traits<char[N], id_raw> - { - typedef char* value_type; - typedef char query_type[N]; - typedef char* image_type; - - static void - set_value (char* const& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - std::memcpy (v, b, (n < N ? n : N)); - else - std::memset (v, 0, N); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const char* v) - { - is_null = false; - n = N < c ? N : c; - std::memcpy (b, v, n); - } - }; - - // unsigned char[N] (buffer) specialization for RAW. - // - template <std::size_t N> - struct default_value_traits<unsigned char[N], id_raw> - { - typedef unsigned char* value_type; - typedef unsigned char query_type[N]; - typedef char* image_type; - - static void - set_value (unsigned char* const& v, - const char* b, - std::size_t n, - bool is_null) - { - if (!is_null) - std::memcpy (v, b, (n < N ? n : N)); - else - std::memset (v, 0, N); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const unsigned char* v) - { - is_null = false; - n = N < c ? N : c; - std::memcpy (b, v, n); - } - }; - -#ifdef ODB_CXX11 - // std::array<char, N> (buffer) specialization for RAW. - // - template <std::size_t N> - struct default_value_traits<std::array<char, N>, id_raw> - { - public: - typedef std::array<char, N> value_type; - typedef value_type query_type; - typedef char* image_type; - - static void - set_value (value_type& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - std::memcpy (v.data (), b, (n < N ? n : N)); - else - std::memset (v.data (), 0, N); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const value_type& v) - { - is_null = false; - n = N < c ? N : c; - std::memcpy (b, v.data (), n); - } - }; - - // std::array<unsigned char, N> (buffer) specialization for RAW. - // - template <std::size_t N> - struct default_value_traits<std::array<unsigned char, N>, id_raw> - { - public: - typedef std::array<unsigned char, N> value_type; - typedef value_type query_type; - typedef char* image_type; - - static void - set_value (value_type& v, const char* b, std::size_t n, bool is_null) - { - if (!is_null) - std::memcpy (v.data (), b, (n < N ? n : N)); - else - std::memset (v.data (), 0, N); - } - - static void - set_image (char* b, - std::size_t c, - std::size_t& n, - bool& is_null, - const value_type& v) - { - is_null = false; - n = N < c ? N : c; - std::memcpy (b, v.data (), n); - } - }; -#endif - - // std::string specialization for LOBs. - // - class LIBODB_ORACLE_EXPORT string_lob_value_traits - { - public: - typedef std::string value_type; - typedef std::string query_type; - typedef lob_callback image_type; - - static void - set_value (std::string& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = &v; - } - else - v.erase (); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const std::string& v) - { - is_null = false; - cb = ¶m_callback; - context = &v; - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<std::string, id_clob>: - string_lob_value_traits - { - }; - - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<std::string, id_nclob>: - string_lob_value_traits - { - }; - - // std::vector<char> (buffer) specialization for BLOBs. - // - template <> - struct LIBODB_ORACLE_EXPORT default_value_traits<std::vector<char>, - id_blob> - { - public: - typedef std::vector<char> value_type; - typedef std::vector<char> query_type; - typedef lob_callback image_type; - - static void - set_value (value_type& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = &v; - } - else - v.clear (); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const value_type& v) - { - is_null = false; - cb = ¶m_callback; - context = &v; - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; - - // std::vector<unsigned char> (buffer) specialization for BLOBs. - // - template <> - struct LIBODB_ORACLE_EXPORT - default_value_traits<std::vector<unsigned char>, id_blob> - { - public: - typedef std::vector<unsigned char> value_type; - typedef std::vector<unsigned char> query_type; - typedef lob_callback image_type; - - static void - set_value (value_type& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = &v; - } - else - v.clear (); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const value_type& v) - { - is_null = false; - cb = ¶m_callback; - context = &v; - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; - - // char[N] (buffer) specialization for BLOBs. - // - template <std::size_t N> - struct default_value_traits<char[N], id_blob> - { - public: - typedef char* value_type; - typedef char query_type[N]; - typedef lob_callback image_type; - - static void - set_value (char* const& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = v; - } - else - std::memset (v, 0, N); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const char* v) - { - is_null = false; - cb = ¶m_callback; - context = v; - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; - - // unsigned char[N] (buffer) specialization for BLOBs. - // - template <std::size_t N> - struct default_value_traits<unsigned char[N], id_blob> - { - public: - typedef unsigned char* value_type; - typedef unsigned char query_type[N]; - typedef lob_callback image_type; - - static void - set_value (unsigned char* const& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = v; - } - else - std::memset (v, 0, N); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const unsigned char* v) - { - is_null = false; - cb = ¶m_callback; - context = v; - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; - -#ifdef ODB_CXX11 - // std::array<char, N> (buffer) specialization for BLOBS. - // - template <std::size_t N> - struct default_value_traits<std::array<char, N>, id_blob> - { - public: - typedef std::array<char, N> value_type; - typedef value_type query_type; - typedef lob_callback image_type; - - static void - set_value (value_type& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = v.data (); - } - else - std::memset (v.data (), 0, N); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const value_type& v) - { - is_null = false; - cb = ¶m_callback; - context = v.data (); - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; - - // std::array<unsigned char, N> (buffer) specialization for BLOBS. - // - template <std::size_t N> - struct default_value_traits<std::array<unsigned char, N>, id_blob> - { - public: - typedef std::array<unsigned char, N> value_type; - typedef value_type query_type; - typedef lob_callback image_type; - - static void - set_value (value_type& v, - result_callback_type& cb, - void*& context, - bool is_null) - { - if (!is_null) - { - cb = &result_callback; - context = v.data (); - } - else - std::memset (v.data (), 0, N); - } - - static void - set_image (param_callback_type& cb, - const void*& context, - bool& is_null, - const value_type& v) - { - is_null = false; - cb = ¶m_callback; - context = v.data (); - } - - static bool - result_callback (void* context, - ub4* position_context, - void* buffer, - ub4 size, - chunk_position); - - static bool - param_callback (const void* context, - ub4* position_context, - const void** buffer, - ub4* size, - chunk_position*, - void* temp_buffer, - ub4 capacity); - }; -#endif - - // - // type_traits - // - - template <typename T> - struct default_type_traits; - - template <typename T> - class type_traits: public default_type_traits<T> - { - }; - - // Integral types. - // - template <> - struct default_type_traits<bool> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<signed char> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<unsigned char> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<short> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<unsigned short> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<int> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<unsigned int> - { - static const database_type_id db_type_id = id_int32; - }; - - template <> - struct default_type_traits<long> - { - static const database_type_id db_type_id = id_big_int; - }; - - template <> - struct default_type_traits<unsigned long> - { - static const database_type_id db_type_id = id_big_int; - }; - - template <> - struct default_type_traits<long long> - { - static const database_type_id db_type_id = id_big_int; - }; - - template <> - struct default_type_traits<unsigned long long> - { - static const database_type_id db_type_id = id_big_int; - }; - - // Float types. - // - template <> - struct default_type_traits<float> - { - static const database_type_id db_type_id = id_float; - }; - - template <> - struct default_type_traits<double> - { - static const database_type_id db_type_id = id_double; - }; - - // String types. - // - template <> - struct default_type_traits<std::string> - { - static const database_type_id db_type_id = id_string; - }; - - template <> - struct default_type_traits<char*> - { - static const database_type_id db_type_id = id_string; - }; - - template <> - struct default_type_traits<const char*> - { - static const database_type_id db_type_id = id_string; - }; - - template <std::size_t N> - struct default_type_traits<char[N]> - { - static const database_type_id db_type_id = id_string; - }; - -#ifdef ODB_CXX11 - template <std::size_t N> - struct default_type_traits<std::array<char, N> > - { - static const database_type_id db_type_id = id_string; - }; -#endif - - template <> - struct default_type_traits<char> - { - static const database_type_id db_type_id = id_string; - }; - - // Binary types. Assume RAW since LOBs cannot be compared in - // Oracle and this is only used in queries. - // - template <std::size_t N> - struct default_type_traits<unsigned char[N]> - { - static const database_type_id db_type_id = id_raw; - }; - - template <> - struct default_type_traits<std::vector<char> > - { - static const database_type_id db_type_id = id_raw; - }; - - template <> - struct default_type_traits<std::vector<unsigned char> > - { - static const database_type_id db_type_id = id_raw; - }; - -#ifdef ODB_CXX11 - template <std::size_t N> - struct default_type_traits<std::array<unsigned char, N> > - { - static const database_type_id db_type_id = id_raw; - }; -#endif - } -} - -#include <odb/oracle/traits.txx> - -#include <odb/post.hxx> - -#endif // ODB_ORACLE_TRAITS_HXX |