Override getter for Kotlin data class

Question

Given the following Kotlin class:

data class Test(val value: Int)

How would I override the Int getter so that it returns 0 if

Answer 1

I know this is an old question but it seems nobody mentioned the possibility to make value private and writing custom getter like this:

data class Test(private val value: Int) {
    fun getValue(): Int = if (value < 0) 0 else value
}

This should be perfectly valid as Kotlin will not generate default getter for private field.

But otherwise I definitely agree with spierce7 that data classes are for holding data and you should avoid hardcoding "business" logic there.