Effect for dependency handling in runtime classpath. When effective injection is performed, only the activated ones of all effects are candidates for injection.

object Effects {
  def getKind = sys.props.getOrElse("env", "local")

  object LOCAL extends Effect {
    def activate: Boolean = getKind == "local"
  }
  object DEV extends Effect {
    def activate: Boolean = getKind == "dev"
  }
  object STG extends Effect {
    def activate: Boolean = getKind == "stg"
  }
  object PRD extends Effect {
    def activate: Boolean = getKind == "prd"
  }
}

@Effective(LOCAL)
object LocalRuntimeSetting extends Setting with AutoInject

@Effective(DEV)
object DevRuntimeSetting extends Setting with AutoInject

@Effective(STG)
object StgRuntimeSetting extends Setting with AutoInject

@Effective(PRD)
object PrdRuntimeSetting extends Setting with AutoInject