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authorConstantin Michael <constantin@codesynthesis.com>2011-11-17 11:44:45 +0200
committerConstantin Michael <constantin@codesynthesis.com>2011-11-17 11:44:45 +0200
commit9616e3e84946c23f64448978d9459d2a25202833 (patch)
tree209fe102c7d73b57ff3d2a4cdf68ad2df705704f /mapping/traits-oracle.hxx
parent508512b8db199c5bcc1affc237d6eac4e0a4818d (diff)
Add examples for Oracle
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diff --git a/mapping/traits-oracle.hxx b/mapping/traits-oracle.hxx
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+// file : mapping/traits-oracle.hxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#ifndef TRAITS_ORACLE_HXX
+#define TRAITS_ORACLE_HXX
+
+//
+// Oracle implementation.
+//
+
+#include <cstddef> // std::size_t
+#include <cstring> // std::strncmp, std::memcpy
+
+#include <odb/oracle/traits.hxx>
+#include <odb/oracle/details/date.hxx>
+
+#include "person.hxx" // date
+
+namespace odb
+{
+ namespace oracle
+ {
+ template <>
+ class value_traits<bool, id_string>
+ {
+ public:
+ typedef bool value_type;
+ typedef bool query_type;
+ typedef char* image_type;
+
+ static void
+ set_value (bool& v,
+ const char* b,
+ std::size_t n,
+ bool is_null)
+ {
+ v = (!is_null && n == 4 && std::strncmp ("true", b, n) == 0);
+ }
+
+ static void
+ set_image (char* b,
+ std::size_t c,
+ std::size_t& n,
+ bool& is_null,
+ bool v)
+ {
+ is_null = false;
+ n = v ? 4 : 5;
+
+ assert (n <= c);
+
+ std::memcpy (b, (v ? "true" : "false"), n);
+ }
+ };
+
+ template <>
+ class value_traits<date, id_date>
+ {
+ public:
+ typedef date value_type;
+ typedef date query_type;
+ typedef char* image_type;
+
+ static void
+ set_value (date& v, const char* b, bool is_null)
+ {
+ if (!is_null)
+ {
+ short y;
+ unsigned char m, d, h, min, s;
+ details::get_date (b, y, m, d, h, min, s);
+
+ v = date (y, m, d);
+ }
+ else
+ v = date (0, 0, 0);
+ }
+
+ static void
+ set_image (char* b, bool& is_null, const date& v)
+ {
+ is_null = false;
+
+ short y (static_cast<short> (v.year ()));
+ unsigned char m (static_cast<unsigned char> (v.month ()));
+ unsigned char d (static_cast<unsigned char> (v.day ()));
+
+ details::set_date (b, y, m, d, 0, 0, 0);
+ }
+ };
+ }
+}
+
+#endif // TRAITS_ORACLE_HXX