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// file : odb/query.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 ODB_QUERY_HXX
#define ODB_QUERY_HXX
#include <odb/pre.hxx>
#include <odb/traits.hxx>
namespace odb
{
//
//
template <typename T>
struct query_columns_base;
template <typename T, const char* table>
struct query_columns;
template <typename T, const char* table>
struct pointer_query_columns;
// Object pointer syntax wrapper.
//
template <typename T>
struct query_pointer
{
query_pointer ()
{
// For some reason GCC needs this dummy c-tor if we make a static
// data member of this type const.
}
T*
operator-> () const
{
return 0; // All members in T are static.
}
};
//
//
template <typename T, class_kind kind = class_traits<T>::kind>
struct query_selector;
template <typename T>
struct query_selector<T, class_object>
{
typedef typename object_traits<T>::query_base_type base_type;
typedef typename object_traits<T>::query_type type;
};
template <typename T>
struct query_selector<T, class_view>
{
typedef typename view_traits<T>::query_base_type base_type;
typedef typename view_traits<T>::query_type type;
};
template <typename T, typename Q = typename query_selector<T>::base_type>
class query;
namespace core
{
using odb::query;
}
}
#include <odb/post.hxx>
#endif // ODB_QUERY_HXX
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