class Rufus::Scheduler::OneTimeJob

def determine_id

def determine_id
  [
    self.class.name.split(':').last.downcase[0..-4],
    @scheduled_at.to_f,
    @next_time.to_f,
    opts.hash.abs
  ].map(&:to_s).join('_')
end

def occurrences(time0, time1)

def occurrences(time0, time1)
  time >= time0 && time <= time1 ? [ time ] : []
end

def set_next_time(is_post, trigger_time)


There is no next_time for one time jobs, hence the false.
def set_next_time(is_post, trigger_time)
  @next_time = is_post ? nil : false
end