Java链式构造对象拓展篇

@Data
public class Parent {
    private String name;

    private Integer age;

}

@Data
public class ChildA extends Parent{

    private String nickName;

    public ChildA setNickName(String nickName) {
        this.nickName = nickName;
        return this;
    }

    public ParentWrapper getWrapper(){
        return new ParentWrapper<>(this);
    }
}

public class ChildB extends Parent {
    private String someName;

    public ChildB setSomeName(String someName) {
        this.someName = someName;
        return this;
    }

    public ParentWrapper getWrapper(){
        return new ParentWrapper<>(this);
    }
}

public class ParentWrapper {
       private Parent parent;

    public ParentWrapper(Parent parent) {
        this.parent = parent;
    }

    public ParentWrapper setName(String name) {
        parent.setName(name);
        return this;
    }

    public ParentWrapper setAge(Integer age) {
        parent.setAge(age);
        return this;
    }

    public T build() {
        return (T) parent;
    }
}