static void Main(string[] args)
{
// Traditional
// Monitor when specific events occur and react to them
var stockTicker = new StockTicker();
// Create observers, subscribe, and listen for the events of the stock ticker
new TwitterStock(stockTicker);
// Setting the "Stock" property will trigger a new update and will display to the console.
stockTicker.Stock = new Stock
{
Symbol = "TWTR",
Price = 1000,
DateRecieved = DateTime.Now
};
// Events
// Create a reference to the delegate object
var stockTickerDelegate = new StockTickerDelegate();
// Subscribe to the StockTicker event. Using a lambda expression to give the
// event what happens after it has been triggered.
stockTickerDelegate.StockTicker += (s, e) =>
Console.WriteLine("Stock from event. Symbol {0}, price {1}, date recieved {2}",
e.Symbol, e.Price, e.DateRecieved);
// An event has been triggered...
stockTickerDelegate.SetStock(new Stock { Symbol = "TWTR", Price = 500, DateRecieved = DateTime.Now });
// IObserver<T>
// Create the Stock Ticker subject object
var stockTickerObservable = new StockTickerObservable();
// Create the object to observe
var twitterStockObservable = new TwitterStockObservable();
// Subscribe and check for new notifications. This will dispose
// of the object (release the observable) once finished.
using (stockTickerObservable.Subscribe(twitterStockObservable))
{
stockTickerObservable.Stock = new Stock
{
Symbol = "TWTR",
Price = 5000,
DateRecieved = DateTime.Now
};
}
Console.ReadLine();
}
public TwitterStock(StockTicker stockData)
{
_stockData = stockData;
_stockData.Subscribe(this);
}
public TwitterStock(StockTicker stockData)
{
_stockData = stockData;
_stockData.Subscribe(this);
}