static void Main(string[] args)
{
// My first approach
var subject = new Observer.FirstTry.Subject();
var databaseObserver = new Observer.FirstTry.Database();
var logObserver = new Observer.FirstTry.Log();
subject.Register(databaseObserver);
subject.Register(logObserver);
subject.setAddress("*****@*****.**");
subject.Unregister(logObserver);
subject.setTitle("Welcome to the observer pattern");
// GOF approach
var weather = new Observer.GOF.WeatherSubject();
var windObserver = new Observer.GOF.WindSpeedObserver(weather);
var temperatureObserver = new Observer.GOF.TemperatureObserver(weather);
weather.Temperature = 33.4;
weather.WindSpeed = 12.3;
//dotnet events and delegates approach
var weather2 = new WithEventsAndDelegates.WeatherSubject();
var windObserver2 = new WithEventsAndDelegates.WindSpeedObserver(weather2);
var temperatureObserver2 = new WithEventsAndDelegates.TemperatureObserver(weather2);
weather2.Temperature = 55.3;
weather2.WindSpeed = 9.2;
}
public WindSpeedObserver(WeatherSubject subject)
{
subject.WindSpeedChanged += WindSpeedChangeHandler;
}
public TemperatureObserver(WeatherSubject subject)
{
subject.TemperatureChanged += TemperatureChangeHandler;
}