小编Dr1*_*231的帖子

我有一个问题，有点理论：

假设，我有以下课程：

interface ReportInterface {
     void execute();
}

class Report implements ReportInterface {

  private final Repository rep; 

  Report(Repository ref){
     this.rep = ref;
  }

  public void execute(){
     //do some logic
  }
}


class ReportWithSetter implements ReportInterface {

  private final Repository rep;
  private String release;

  ReportWithSetter(Repository ref){
     rep = ref;
  }

  public void execute(){
     if (release == null) throw IlligalArgumentException("release is not specified");
     //do some logic
  }
  
  public void setRelease(String release){
     this.release=release;
  }
}

第二个报告需要一个额外的参数释放才能正常工作，但我的接口定义为没有execute方法参数，所以我使用 setter 方法解决它，所以它看起来像：

ReportWithSetter …