code: @Override
    public CompletedExecutionInstruction executionComplete(
        JobExecutionContext context, JobExecutionException result) {
  
      if (result != null && result.refireImmediately()) {
        return CompletedExecutionInstruction.RE_EXECUTE_JOB;
      }
  
      if (result != null && result.unscheduleFiringTrigger()) {
        return CompletedExecutionInstruction.SET_TRIGGER_COMPLETE;
      }
  
      if (result != null && result.unscheduleAllTriggers()) {
        return CompletedExecutionInstruction.SET_ALL_JOB_TRIGGERS_COMPLETE;
      }
  
      if (!mayFireAgain()) {
        return CompletedExecutionInstruction.DELETE_TRIGGER;
      }
  
      return CompletedExecutionInstruction.NOOP;
    }
docs: /*
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Operational Trigger methods.
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~