ObserverBase.h

/*
 * ObserverBase.h
 *
 *  Created on: 31.10.2016
 *      Author: mheinen
 */
 
#ifndef OBSERVERBASE_H_
#define OBSERVERBASE_H_
 
class SubjectBase;
class ObserverBase
{
public:
    virtual ~~ObserverBase() {}
    virtual void update(SubjectBase* subject) = 0;
};
 
class SubjectBase
{
public:
    virtual ~~SubjectBase() {}
    virtual void registerObserver(ObserverBase* observer) = 0;
    virtual void unregisterObserver(ObserverBase* observer) = 0;
    virtual void informObserver() = 0;
};
 
#endif /* OBSERVERBASE_H_ */