subscription.hpp

// Copyright (C) 2024 Avular Holding B.V. - All Rights Reserved
// You may use this code under the terms of the Avular
// Software End-User License Agreement.
//
// You should have received a copy of the Avular
// Software End-User License Agreement license with
// this file, or download it from: avular.com/eula
//
/*****************************************************************************
 * Created on: 2024 June 25
 * Author: Robbert-Jan de Jager
 *
 * @file This file declares objects related to subscriptions.
 ****************************************************************************/
#pragma once
 
namespace creos {
 
class SubscriptionId {
    static constexpr int kInvalidId{-1};
 
public:
    SubscriptionId() = default;
 
    explicit SubscriptionId(int id) : id_(id) {}
 
    std::strong_ordering operator<=>(const SubscriptionId& other) const { return id_ <=> other.id_; }
 
    bool operator==(const SubscriptionId& other) const { return id_ == other.id_; }
 
    operator bool() const { return id_ != kInvalidId; }
 
    int getId() const { return id_; }
 
private:
    int id_{kInvalidId};
};
 
}  // namespace creos
 
template <>
struct std::hash<creos::SubscriptionId> {
    std::size_t operator()(const creos::SubscriptionId& id) const { return std::hash<int>{}(id.getId()); }
};