public IObservable <DictionaryNotification <TKey, TValue> > Get(TKey key)
{
return(Observable.Create <DictionaryNotification <TKey, TValue> >(observer =>
{
TValue existingValue;
if (_state.TryGetValue(key, out existingValue))
{
observer.OnNext(DictionaryNotification.Existing(key, existingValue));
}
else
{
observer.OnNext(DictionaryNotification.Missing <TKey, TValue>(key));
}
return new CompositeDisposable(_subject
.Where(dn => dn.Type == DictionaryNotificationType.KeyCleared || Equals(dn.Key, key))
.Subscribe(observer), Connect());
})
.SubscribeOn(_scheduler));
}
public IObservable <DictionaryNotification <TKey, TValue> > Get(TKey key)
{
return(Observable.Create <DictionaryNotification <TKey, TValue> >(observer =>
{
lock (_lock)
{
TValue existingValue;
if (_state.TryGetValue(key, out existingValue))
{
observer.OnNext(DictionaryNotification.Existing(key, existingValue));
}
else
{
observer.OnNext(DictionaryNotification.Missing <TKey, TValue>(key));
}
return new CompositeDisposable(_subject.Subscribe(observer), Connect());
}
}));
}