Kotlin: Iterate over components of object

Question

Each data class object has a component for each property like component1, component2, etc.. I was wondering if there is any way in Kotlin to iterate over each component of a

Answer 1

also, you can use Properties Delegation with built-in delegate 'by map'. it's very useful for some simple stat classes.

class DbUsingStat {
  private val map = mutableMapOf(
    "removed" to 0,
    "updated" to 0,
    "skipped" to 0
  )

  var removed by map
  var updated by map
  var skipped by map

  fun asMap() : Map = map.toMap()
}

...
...


val someStatistic = DbUsingStat().apply {
  skipped = 5
  removed = 10
  updated = 1505
}

for((k, v) in someStatistic.asMap())
  println("$k: $v")