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// file : sqlite/types/traits.hxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef TRAITS_HXX
#define TRAITS_HXX
#include <cstring> // std::memcpy, std::memset
#include <odb/sqlite/traits.hxx>
#include "test.hxx" // buffer, string_ptr
namespace odb
{
namespace sqlite
{
template <>
class value_traits<buffer, id_blob>
{
public:
typedef buffer value_type;
typedef buffer query_type;
typedef details::buffer image_type;
static void
set_value (buffer& v,
const details::buffer& b,
std::size_t n,
bool is_null)
{
if (!is_null)
v.assign (b.data (), n);
else
v.assign (0, 0);
}
static void
set_image (details::buffer& b,
std::size_t& n,
bool& is_null,
const buffer& v)
{
is_null = false;
n = v.size ();
if (n > b.capacity ())
b.capacity (n);
if (n != 0)
std::memcpy (b.data (), v.data (), n);
}
};
template <>
class value_traits<string_ptr, id_text>
{
public:
typedef string_ptr value_type;
typedef std::string query_type;
typedef details::buffer image_type;
static void
set_value (string_ptr& v,
const details::buffer& b,
std::size_t n,
bool is_null)
{
v.reset (is_null ? 0 : new std::string (b.data (), n));
}
static void
set_image (details::buffer& b,
std::size_t& n,
bool& is_null,
const string_ptr& v)
{
is_null = v.get () == 0;
if (!is_null)
{
n = v->size ();
if (n > b.capacity ())
b.capacity (n);
if (n != 0)
std::memcpy (b.data (), v->c_str (), n);
}
}
};
}
}
#endif // TRAITS_HXX
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