Override Property/Getter for Kotlin Data Class

You can't override getter in kotlin data class with error of Data class primary constructor must have only property (val/ var) parameters.

// not possibledata class Test(id: String) {    val id: String        get() = if (!id.isEmpty()) id else "Is Empty"}

While you can do so in a regular class.

class Test(id: String) {    val id: String        get() = if (!id.isEmpty()) id else "Is Empty"}

My advice is it can't be done / don't do it. Instead, use a normal class

Are you sure you need equals / hashCode or copy methods of data class?
You can generate equals / hashCodeandroid-studio-generate-equals-and-hashcode-methods-for-kotlin methods for normal class.

There is hack if you really insist, though I don't really like the implementation.

data class Test(private val _id: String) {    val id: String        get() = if (!_id.isEmpty()) _id else "Is Empty"}

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