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// file : odb/lazy-pointer-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 ODB_LAZY_POINTER_TRAITS_HXX
#define ODB_LAZY_POINTER_TRAITS_HXX
#include <odb/pre.hxx>
#include <odb/pointer-traits.hxx>
#include <odb/lazy-ptr.hxx>
namespace odb
{
template <typename T>
class pointer_traits< lazy_ptr<T> >
{
public:
static pointer_kind const kind = pk_raw;
static bool const lazy = true;
typedef T element_type;
typedef lazy_ptr<element_type> pointer_type;
typedef element_type* eager_pointer_type;
static bool
null_ptr (const pointer_type& p)
{
return !p;
}
template <class O /* = T */>
static typename object_traits<O>::id_type
object_id (const pointer_type& p)
{
return p.object_id<O> ();
}
};
template <typename T>
class pointer_traits< lazy_auto_ptr<T> >
{
public:
static pointer_kind const kind = pk_unique;
static bool const lazy = true;
typedef T element_type;
typedef lazy_auto_ptr<element_type> pointer_type;
typedef std::auto_ptr<element_type> eager_pointer_type;
static bool
null_ptr (const pointer_type& p)
{
return !p;
}
template <class O /* = T */>
static typename object_traits<O>::id_type
object_id (const pointer_type& p)
{
return p.object_id<O> ();
}
};
}
#include <odb/post.hxx>
#endif // ODB_LAZY_POINTER_TRAITS_HXX
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