in app/com/gu/contentapi/sanity/utils/QuartzScheduler.scala [39:44]
def at(cronPattern: String) {
ScheduleHolder.add(name, f)
val job = newJob(classOf[GenJob]).withIdentity(name).build()
val trigger = newTrigger().withSchedule(CronScheduleBuilder.cronSchedule(new CronExpression(cronPattern))).build()
scheduler.scheduleJob(job, trigger)
}