Because if its just a property or such updating th...

# announcements

[jkbbwr]

Because if its just a property or such updating then you can do it with Delegates.observable

class Person {
    var name: String by Delegates.observable("jake") { prop, old, new ->
        println("$prop changed from $old to $new")
    }
}

fun main(args: Array<String>) {
    val p = Person()
    p.name = "dave"
}