java设计模式之装饰器模式（Decorator）

package interview;

interface Project{
  void doCoding();
}

class Employe implements Project{

  @Override
  public void doCoding() {
    System.out.println("工程师在编程......");
  }
}

class Manager implements Project{

  private Project project;

  public Manager(Project project){
    this.project = project;
  }

  @Override
  public void doCoding() {
    startNewWork();
    project.doCoding();
  }

  public void startNewWork(){}
}

class ManagerA extends Manager{

  public ManagerA(Project project) {
    super(project);
  }

  @Override
  public void startNewWork() {
    System.out.println("开发经理开始新的工作计划");
  }
}

class ManagerB extends Manager{

  public ManagerB(Project project) {
    super(project);
  }

  @Override
  public void startNewWork() {
    System.out.println("测试经理开始新的工作计划");
  }
}
public class MainTest {

  public static void main(String arg[]) {
    Project project = new Employe();
    Project managerA = new ManagerA(project);
    Project managerB = new ManagerB(project);
    managerA.doCoding();
    managerB.doCoding();
  }
}