Design Pattern : Facade

Design Pattern : Facade

Facade的定義請參考Wiki

藉由Facade的，將多個物件封裝在一個介面。

1.  直接看主程式，一目了然：
///原始程式碼
(new Fit()).Drive();
(new Civic()).Drive();
(new Civic()).Drive();
///Facade
using(TestDriveA _testDrive = new TestDriveA())
{
  _testDrive.Drive(true);
}

u  將原始程式碼的三個物件，封裝在TestDriveA

2.  Facade

public class TestDriveA : IDisposable
{
  ICar fit = new Fit();
  ICar civic = new Civic();
  ICar accord = new Accord();
  public void Dispose()
  {
    fit=null;
    civic=null;
    accord=null;
  }
  public void Drive(bool CanTestDrive)
  {
    if (CanTestDrive)
    {
      fit.Drive();
      civic.Drive();
      accord.Drive();
    }
    else
    {
      Console.WriteLine("Deny!");
    }
  }
}

3.      Reference
Understanding and Implementing Facade Pattern in C#