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_