can someone point me on how I can extend a data cl...

# announcements

[manijshrestha]

can someone point me on how I can extend a data class? as per the documentation Since 1.1, data classes may extend other classes.?
I am trying to achieve

data class Person(val name: String)
data class Employee(val id: String, val name:String) : Person(name)

[kevinmost]

data classes may extend other classes, but they may not extend other data classes. Data classes are always final

[manijshrestha]

could I do something like this then?

open class Person(val name: String)

data class Employee(val id: String, val name:String) : Person(name)

[kirillrakhman]

you can't have the name property twice

[kirillrakhman]

you can do

open class Person(open val name: String)
data class Employee(val id: String, override val name:String) : Person(name)

[kirillrakhman]

but maybe making Person an interface is the better choice

[manijshrestha]

👍

[manijshrestha]

yeah I have a data object that share most same fields except for extra fields based on certain object.

[mg6maciej]

Or sealed class instead of interface when you fancy when without else.

[manijshrestha]

Also I am using it in Android where I have to have a “Parcelable” implementation

[mg6maciej]

Writing parcelables by hand?

[manijshrestha]

using the IDE plugin to do that. not using libs like paper parcel.

[manijshrestha]

I like how AutoValue generated the parcelable impl

[kevinmost]

why not use PaperParcel there?