// Ignore the magic object, it is redis internal stuff implementation
object RedisMagic {
	protected val map: collection.mutable.Map[String, Any] = collection.mutable.Map.empty
	def set[T](name: String, value: T): Boolean = { map(name) = value; true }
	def get[T](name: String): Option[T] = map.get(name).map(_.asInstanceOf[T])
}
 
object RedisObjectValue {
  implicit def objectValueToValue[T](ov: RedisObjectValue[T]): T = {
    ov.get
  }
}
 
case class RedisObjectValue[T](name: String, default: T) {
  def :=(value: T): Boolean = {
    RedisMagic.set[T](name, value)
  }
 
  def get: T = {
    RedisMagic.get[T](name).getOrElse(default)
  }
 
  override def equals(o: Any) = o match {
    case ov: RedisObjectValue[T] =>
      if (this.hashCode() == ov.hashCode()) true // Same reference
      else this.get == ov.get
    case v =>
      // If we don't compare to another RedisObjectValue, let the equals method of data type handle it
      this.get.equals(v)
  }
}
 
class Player(_id: Long) {
	protected def saveName(valName: String): String = _id + ":" + valName
	val userId = new RedisObjectValue[Long](saveName("userId"), 0l)
	val name = new RedisObjectValue[String](saveName("name"), "Unknown")
}
 
object Main extends App {
	val player1 = new Player(1)
	player1.userId := 42
	player1.name := "God"
	val player2 = new Player(2)
	player2.userId := 2
	player2.name := "Unknown"
 
	val list = Vector(player1, player2)
	val filtered = list.filter(_.userId == 42)
	System.out.println("Count of filtered: " + filtered.length)
}

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