public class Product {

    public String name;
    public Integer price;
}

将转变为

public class Product {

    public String name;
    public Integer price;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getPrice() {
        return price;
    }

    public void setPrice(Integer price) {
        this.price = price;
    }
}

手册进一步解释：

那么当你想访问一个属性时,你可以写：

product.name = "My product";
product.price = 58;

哪个在加载时转换为：

product.setName("My product");
product.setPrice(58);

…并警告：

You can’t directly use getter and setter methods to access properties
if you rely on automatic generation. These methods are generated at
runtime. So if you reference them in code you write,the compiler
won’t find the methods and will generate an error.

因为我不能从Play外面使用这些getter和setter！项目,我看不出有什么好处.与所有现代IDE的考虑相比,公共领域,重构(封装一个领域和更改呼叫者)有什么好处？