# Where to define constants?

Define constants inside the module's object class.

For example:

• Define the property MAX_PARTICIPANTS_ALLOWED in LotteryDomainObject.scala

  object LotteryDomainObject extends com.metastay.lotterydomain.LotteryDomainTrait {
    val MAX_PARTICIPANTS_ALLOWED = 100 //alternately, read it from the conf file
  }
  

• Sample usage:

  
  
  

   

  
  
  

  import com.metastay.lotterydomain.LotteryDomainObject
  def canAddMoreParticipants(participantCount: Int): Boolean = {
      participantCount <= LotteryDomainObject.MAX_PARTICIPANTS_ALLOWED
  }