java - 从基类继承 Grails 域类属性

Question

我试图创建一个动态继承另一个类属性的域类构造函数。但我无法让它正常工作。

这是一个例子:

class Example1 {

  String name;
  String location;
}

class Example2 extends Example1 {

  String status;

  public Example2 (Example1 orig){
    // Code here to set this.name and this.location  to name and location from orig
    // dynamically, so adding a field in Example1 does not require me to add that 
    // field here.
  }
}

Answer 1

你太努力了，只需复制属性:

class Example2 extends Example1 {

   String status

   Example2() {}

   Example2(Example1 orig) {
      this.properties = orig.properties
   }
}