ObjSubject.h

Go to the documentation of this file.

#ifndef WPP_OBJ_SUBJECT_H_
#define WPP_OBJ_SUBJECT_H_
 
#include "ItemOp.h"
#include "ObjOpObserver.h"
 
namespace wpp {
 
class Object;
 
class ObjSubject {
public:
    void opSubscribe(ObjOpObserver *observer) {
        if (!observer) return;
        if (std::find(_opObservers.begin(), _opObservers.end(), observer) == _opObservers.end()) 
            _opObservers.push_back(observer);
    }
 
    void opUnsubscribe(ObjOpObserver *observer) {
        _opObservers.erase(std::find(_opObservers.begin(), _opObservers.end(), observer));
    }
    
protected:
    void operationNotify(Object &obj, ID_T instanceId, ItemOp::TYPE type) {
        for(ObjOpObserver* observer : _opObservers) {
            if (type == ItemOp::CREATE) {
                observer->instanceCreated(obj, instanceId);
            } else if (type == ItemOp::DELETE) {
                observer->instanceDeleting(obj, instanceId);
            }
        }
    }
 
private:
    std::vector<ObjOpObserver *> _opObservers;
};
 
}
 
#endif //WPP_OBJ_SUBJECT_H_