CODEWITHSUNDEEP
scala
Manu Chadha
Manu Chadha

Reputation: 16723

How do I create an Enum from an interger value

My application has the following Enum.

object UserTokenType extends Enumeration {
  type TokenType = Value
  val RegistrationConfirmation = Value("RegistrationConfirmation")
  val ResetPasswordConfirmation = Value("ResetPasswordConfirmation")
}

I store the value of the enum in the database by using the id of the Enum. When I read the value from the database, I want to recreate the Enum so that I can pass it around in my data model. At the moment, I have done it as follows

val userTokenType:UserTokenType.TokenType = if(row.getInt("is_sign_up") == UserTokenType.RegistrationConfirmation.id) {
      UserTokenType.RegistrationConfirmation
    }else{
      UserTokenType.ResetPasswordConfirmation
    }

Is above the right way of converting an Int into an Enum?

Upvotes: 0

Views: 38

Answers (1)

fenixil
fenixil

Reputation: 2124

As @som-snytt mentioned in the comment, you can use [apply(x:Int)](https://www.scala-lang.org/api/current/scala/Enumeration.html#apply(x:Int) :Enumeration.this.Value) to construct enum:

row.getInt("is_sign_up") match {
  case id if id >= 0 && id < UserTokenType.maxId => Some(UserTokenType(id))
  case _ => None
}

Upvotes: 1

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