CODEWITHSUNDEEP
scalafunctional-programming
oshai
oshai

Reputation: 15375

mergin 2 Sets to an aggregation Object

I have a method that need to create Map[Integer, Data] based on 2 Sets. It is kind of merge for the parameters where the key in the map is the key of each tuple in the sets, and the value is Data object constructed with the tuples values.

def craete(included: Set[(Int, Set[Int])], excluded: Set[(Int, Set[Int])]) {
//create new Map[Integer, Data]...
}

and the dataObject class:

class Data(included: Seq[Integer], excluded: Seq[Integer]) {
}

Upvotes: 0

Views: 36

Answers (1)

Rüdiger Klaehn
Rüdiger Klaehn

Reputation: 12565

case class Data(included: Set[Int], excluded: Set[Int])

def create(included: Map[Int, Set[Int]], excluded: Map[Int, Set[Int]]): Map[Int, Data] = {
  val keys = included.keySet union excluded.keySet
  keys.iterator.map(id => id -> Data(
    included.getOrElse(id, Set.empty), 
    excluded.getOrElse(id, Set.empty))
  ).toMap
}

Note that there is no Integer in scala

Upvotes: 2

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