Decoration Mode 1

[keywords]:java,design pattern, design pattern, Java and pattern learning, decorator, decoration mode

[Environment]:staruml5.0 + JDK6

[Author]:winty (wintys@gmail.com)

[Body]:

 package pattern.decorator; /** * Decoration Mode: Decorator pattern * @version 2009-6-5 * @author winty (wintys@gmail.com)/public class Decoratortest
　　 　　　 　{public static void main (string[] args) {Component Component;
　　 　　　 　component = new Concretecomponent ();
　　 　　　 　Component.dosomething ();
　　 　　　 　
　　 　　　 　System.out.println ("");
　　 　　　 　Transparent decorative mode Component decorator;
　　 　　　 　Decorator = new Concretedecorator (component);
　　 　　　 　Decorator.dosomething ();
　　 　　　 　System.out.println ("");
　　 　　　 　Translucent decorative pattern concretedecorator decorator2;
　　 　　　 　Decorator2 = new Concretedecorator (component);
　　 　　　 　Decorator2.dosomething ();
　　 　Decorator2.dootherthings ();
　　}/** * Abstract widget: Component * * Interface component{public abstract void dosomething (); /** * Concrete Widget: Concretecomponent/class Concretecomponent implements component{@Override public void Doso
　　 　Mething () {System.out.println ("do something");
　} 　　} 　　/**　* Decoration: Decorator */abstract class Decorator implements component{private Component comp;
　　 　Public decorator (Component comp) {this.comp = comp;
　　 　@Override public void DoSomething () {comp.dosomething (); }/** * Specific decoration: Concretedecorator */class Concretedecorator extends decorator{public concretedecorator (Comp
　　 　Onent comp) {super (comp);
　　 　　　 　@Override public void DoSomething () {super.dosomething ();
　　 　Domorethings ();
　　 　private void Domorethings () {System.out.println ("do more things.");
　　 　 /** * The new method is not part of the component interface, * so it cannot be accessed transparently through the component interface.
　　 　*/public void dootherthings () {System.out.println ("does other things."); }}