Subject.hpp

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#ifndef DART_COMMON_SUBJECT_HPP_
#define DART_COMMON_SUBJECT_HPP_

#include <set>

namespace dart {
namespace common {

class Observer;

class Subject
{
public:
  friend class Observer;

  virtual ~Subject();

protected:
  void sendDestructionNotification() const;

  void addObserver(Observer* _observer) const;

  void removeObserver(Observer* _observer) const;

  mutable std::set<Observer*> mObservers;
};

} // namespace common
} // namespace dart

#endif // DART_COMMON_SUBJECT_HPP_