/// <summary>
/// Update PatientLists when the Practitioner changes
/// </summary>
/// <param name="subject"></param>
/// <returns></returns>
public async Task UpdateAsync(IObservableSubject subject)
{
IsLoading = true;
if (_practitioner == null || (subject as Practitioner).Id != _practitioner.Id)
{
_practitioner = (Practitioner)subject;
_patients = await FhirService.GetPatientsOfPractitioner(_practitioner.Id);
IsLoading = false;
}
}
public void Update(IObservableSubject state)
{
if (state is CarVehicle car)
{
Console.WriteLine(GetType().Name + ": Car status > " + car.Status);
}
if (state is TrainSD40 train)
{
Console.WriteLine(GetType().Name + ": Train status > " + train.CurrentState);
}
}
public void Update(IObservableSubject subject)
{
throw new NotImplementedException();
}
public MainObserver(MulticastObserver parent, IObservableSubject <T> subject)
{
this.parent = parent;
this.subject = subject;
}
public MulticastObserver(ISignalObserver <R> downstream, IObservableSubject <T> subject)
{
this.downstream = downstream;
this.mainObserver = new MainObserver(this, subject);
}
// 구독 해제.
public void UnSubscribe(IObservableSubject s)
{
s.RemoveObserver(this);
}
// 구독 시작. 책에 적힌 방식. 생성과 동시에 옵저버 등록.
/*
* public WeatherDisplay(Subject s)
* {
* s.RegisterObserver(this);
* }
*/
// 구독 시작. 직관성 있게 개선한 방식.
public void Subscribe(IObservableSubject s)
{
s.RegisterObserver(this);
}