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// file : odb/forward.hxx
// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
// license : GNU GPL v2; see accompanying LICENSE file
#ifndef ODB_FORWARD_HXX
#define ODB_FORWARD_HXX
#include <odb/pre.hxx>
#include <cstddef> // std::size_t
#include <odb/details/export.hxx>
#include <odb/details/shared-ptr-fwd.hxx>
namespace odb
{
class database;
class connection;
typedef details::shared_ptr<connection> connection_ptr;
class transaction;
class statement;
class session;
namespace core
{
using odb::database;
using odb::connection;
using odb::connection_ptr;
using odb::transaction;
using odb::statement;
using odb::session;
}
// Tracing.
//
class tracer; // Not in core.
extern LIBODB_EXPORT tracer& stderr_tracer;
namespace core
{
using odb::stderr_tracer;
}
// Implementation details.
//
// Keep real databases first since their enumerators are used as array
// indexes
//
enum database_id
{
id_mysql,
id_sqlite,
id_pgsql,
id_oracle,
id_mssql,
id_default
};
// Number of real databases in the database_id enum.
//
const std::size_t database_count = id_default;
// Traits.
//
class access
{
public:
template <typename T>
class object_traits;
template <typename T, database_id DB>
class object_traits_impl;
template <typename T, typename P>
class object_factory;
template <typename T>
class view_traits;
template <typename T, database_id DB>
class view_traits_impl;
template <typename T, typename P>
class view_factory;
template <typename T, typename P>
class pointer_factory;
template <typename T, database_id DB>
class composite_value_traits;
template <typename C>
class container_traits;
};
template <typename T>
struct object_traits;
template <typename T, database_id DB>
struct object_traits_impl;
template <typename T>
struct view_traits;
template <typename T, database_id DB>
struct view_traits_impl;
// Cache traits.
//
template <typename T> struct no_id_pointer_cache_traits;
template <typename T> struct no_op_pointer_cache_traits;
template <typename T> struct pointer_cache_traits;
template <typename T> struct no_id_reference_cache_traits;
template <typename T> struct no_op_reference_cache_traits;
template <typename T> struct reference_cache_traits;
// Polymorphism support.
//
template <typename R>
struct polymorphic_map;
namespace details
{
template <>
struct counter_type<connection>
{
typedef shared_base counter;
};
}
}
#include <odb/post.hxx>
#endif // ODB_FORWARD_HXX
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