【DP-装饰器】做菜的时候- 先放生姜后方盐，不想放胡椒

需求：自由为蔬菜搭配作料，可任意组合

• package club.interview.design_pattern.chapt8_decorator;
  
  /**
   * 做菜的时候- 先放生姜后方盐，不想放胡椒
   * 
  
   * 扩展：
   * 1. 可以看看Mybatis的缓存接口  - (org.apache.ibatis.cache.Cache)
   * 2. 如何放入自己的需求中。参考缓存，通过配置可以自由组合 同步的，lru的，fifo的
   *
   * @author QuCheng on 2020/6/19.
   */
  public interface IVegetable {
  
      /**
       * 如何让蔬菜做的更好吃
       */
      void cook();
  
      // ----------------------测试类--------------------- //
  
      /**
       * 测试类main
       *
       * @param args args
       */
      static void main(String[] args) {
          // 自由搭配
          new GingerDecorator(new SaltDecorator(new PepperDecorator(new Potato()))).cook();
          System.out.println("------------");
          new SaltDecorator(new PepperDecorator(new GingerDecorator(new Cabbage()))).cook();
      }
      // ------------------------测试类--------------------- //
  
  
      // ----------------------具体蔬菜--------------------- //
  
      class Cabbage implements IVegetable {
          /**
           * 如何让蔬菜做的更好吃
           */
          @Override
          public void cook() {
              System.out.println("卷心菜...下锅啦");
          }
      }
  
      class Potato implements IVegetable {
          /**
           * 如何让蔬菜做的更好吃
           */
          @Override
          public void cook() {
              System.out.println("土豆...下锅啦");
          }
      }
  
      // ----------------------具体蔬菜--------------------- //
  
      // ---------------蔬菜装饰-------------------------- //
  
      class GingerDecorator implements IVegetable {
          private IVegetable vegetable;
  
          public GingerDecorator(IVegetable vegetable) {
              this.vegetable = vegetable;
          }
  
          /**
           * 如何让蔬菜做的更好吃
           */
          @Override
          public void cook() {
              System.out.println("加点生姜吧");
              vegetable.cook();
          }
      }
  
      class PepperDecorator implements IVegetable {
  
          private IVegetable vegetable;
  
          public PepperDecorator(IVegetable vegetable) {
              this.vegetable = vegetable;
          }
  
          /**
           * 如何让蔬菜做的更好吃
           */
          @Override
          public void cook() {
              System.out.println("加点胡椒吧");
              vegetable.cook();
          }
      }
  
      class SaltDecorator implements IVegetable {
  
          private IVegetable vegetable;
  
          public SaltDecorator(IVegetable vegetable) {
              this.vegetable = vegetable;
          }
  
          /**
           * 如何让蔬菜做的更好吃
           */
          @Override
          public void cook() {
              System.out.println("加点盐吧");
              vegetable.cook();
          }
      }
  
      // ----------------------蔬菜装饰--------------------- //
  
  
  }