Kotlin:数据类私有设置程序public getter [英] Kotlin: data class private setter public getter

问题描述

有什么办法可以在Kotlin数据类中创建私有设置者和公共获取者?

Is there any way I can make a private setter and a public getter in a Kotlin Data Class?

data class Test(var attribute: String) {

    // attribute can be mutated inside this class

    // but outside only readable ?
}

推荐答案

一种简单的方法是拥有一个私有var，然后提供一个委托给它的公共属性:

A simple approach would be to have a private var, but then to provide a public property that delegates to it:

data class Test (private var attribute_ : String) {
  val attribute: String get() = attribute_
}

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