hdf5/attribute.hpp

//  Copyright (c) 2012-2014 Christopher Hinz
//
//  Distributed under the Boost Software License, Version 1.0. (See accompanying
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#ifndef ECHELON_HDF5_ATTRIBUTE_HPP
#define ECHELON_HDF5_ATTRIBUTE_HPP

#include <echelon/hdf5/type.hpp>
#include <echelon/hdf5/object.hpp>

#include <echelon/hdf5/precursor/attribute.hpp>

#include <echelon/hdf5/storage_layer.hpp>

#include <utility>

namespace echelon
{
namespace hdf5
{
class attribute
{
public:
    using native_handle_type = hdf5::precursor::attribute;
    
    attribute() = default;

    attribute(const object& parent, const std::string& name, const type& datatype);
    attribute(const object& parent, const std::string& name);

    template <typename T>
    friend inline void operator<<=(attribute& attr, const T& value)
    {
        write(attr.attribute_wrapper_, value);
    }

    template <typename T>
    friend inline void operator<<=(T& value, const attribute& attr)
    {
        read(attr.attribute_wrapper_, value);
    }

    type datatype() const;

    const native_handle_type& native_handle() const;

    explicit operator bool() const;
private:
    hdf5::precursor::attribute attribute_wrapper_;
};
}
}

#endif