event_subscriber.h

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#pragma once
#include "event_aggregator.h"
 
namespace hgps {
 
class EventSubscriberHandler final : public EventSubscriber {
  public:
    EventSubscriberHandler() = delete;
 
    EventSubscriberHandler(EventHandlerIdentifier id, EventAggregator *hub);
 
    EventSubscriberHandler(const EventSubscriberHandler &other) = delete;
    EventSubscriberHandler &operator=(const EventSubscriberHandler &other) = delete;
    EventSubscriberHandler(EventSubscriberHandler &&other) = delete;
    EventSubscriberHandler &operator=(EventSubscriberHandler &&other) = delete;
 
    ~EventSubscriberHandler();
 
    void unsubscribe() const override;
 
    [[nodiscard]] EventHandlerIdentifier id() const noexcept override;
 
  private:
    EventHandlerIdentifier identifier_;
    EventAggregator *event_hub_;
};
} // namespace hgps