它始終應該有提供抽象方法的邏輯

Question

我有這個抽象類：

 public abstract class Base 
{ 
    protected Timer timer = new Timer { AutoReset = false, Interval = 5000 }; 
    private bool _isTimedOut = false; 

    public bool IsTimedOut { get { return _isTimedOut; } } 

    public Base() 
    { 
     timer.Elapsed += (o, args) => _isTimedOut = true; 
    } 

    public abstract int Recieve(byte[] buffer); 

    private void TimerReset() 
    { 
     timer.Stop(); 
     timer.Start(); 
    } 
} 

每當收到方法是從一個派生類叫做它應該通過調用TimerReset方法復位定時器時間。我能否提供Recieve方法來重置計時器的邏輯？所以當我在派生類中重寫這個成員時，我不必擔心重置計時器嗎？

Answer 1

您可以定義Receveive函數調用ResetTimer方法比調用另一個抽象的接收功能（ReceiveCore）：

public abstract class Base 
{ 
    protected Timer timer = new Timer { AutoReset = false, Interval = 5000 }; 
    private bool _isTimedOut = false; 

    public bool IsTimedOut { get { return _isTimedOut; } private set; } 

    public Base() 
    { 
     timer.Elapsed += (o, args) => _isTimedOut = true; 
    } 

    public int Recieve(byte[] buffer) // This method cannot be overridden. It calls the TimerReset. 
    { 
     TimerReset(); 
     return RecieveCore(buffer); 
    } 

    protected abstract int RecieveCore(byte[] buffer); // This method MUST be overridden. 

    private void TimerReset() 
    { 
     timer.Stop(); 
     timer.Start(); 
    } 
}