适配器(adapter)与外观模式（facade）

适配器模式

将一个类的接口，转换成客户期望的另一个接口。适配器让原本接口不兼容的类可以合作无间。

code implement:

<pre name="code" class="html">Duck refer to Target
TurkeyAdapter refer to Adapter
Adaptee 

pulbic class TurkeyAdapter implements Duck
{
	Turkey turkey;
	public TurKeyAdapter(Turkey turkey)
	{
		this.turkey = turkey;
	}	
	public void quack()// 适配接口
	{
		turkey.gobble();			
	}
	public void fly()
	{
		for(int i=0; i<5; i++)
		{
			turkey.fly();
		}
	}

枚举迭代器设计

上述为对象适配器，对于另一种类适配器，暂不考虑。

外观模式（facade mode）

提供了一个统一的接口，用来访问子系统中的一群接口。外观定义了一个高层接口，让子系统更容易使用。

class HomeTheaterFacade {

	private: Amplifier* _amp;
	private: Tuner* _tuner;
	private: DvdPlayer* _dvd;
	private: CdPlayer* _cd;
	private: Projector* _projector;
	private: TheaterLights* _lights;
	private: Screen* _screen;
	private: PopcornPopper* _popper;
 
	private: HomeTheaterFacade( const HomeTheaterFacade& ); // Disable copy constructor
	private: void operator=( const HomeTheaterFacade& ); // Disable assignment operator

	public: HomeTheaterFacade( Amplifier* amp, Tuner* tuner, DvdPlayer* dvd, CdPlayer* cd, Projector* projector, Screen* screen, TheaterLights* lights, PopcornPopper* popper ) :
		_amp( amp ), _tuner( tuner ), _dvd( dvd ), _cd( cd ), _projector( projector ), _lights( lights ), _screen( screen ), _popper( popper ) {
		assert(amp); assert(tuner); assert(dvd); assert(cd); assert(projector);	assert(screen);	assert(lights);	assert(popper);
	}
 	public: void watchMovie( std::string movie ) {
		std::cout << "Get ready to watch a movie..." << std::endl;
		_popper->on();
		_popper->pop();
		_lights->dim( 10 );
		_screen->down();
		_projector->on();
		_projector->wideScreenMode();
		_amp->on();
		_amp->setDvd( _dvd );
		_amp->setSurroundSound();
		_amp->setVolume( 5 );
		_dvd->on();
		_dvd->play( movie );
	}
        public: //more interface
}