Pattern for hiding recursive function in Scala

Given this recursive function :

 def visitAll(s: String): Unit = {
    val files = getFiles
    for (a <- files) {
      visitAll(s)
      doSomeWork()
    }
  }   

This will act as a driver for work. Is there a pattern or Scala idiom that will allow to hide recursive structure from developer so all all developer needs to worry about is implementing method doSomeWork() ?