onStart method
Callback when this executor is started. Returns true if successfully started, false otherwise.
Implementation
@override
Future<bool> onStart() async {
debug('creating cron job : $configuration');
var schedule = cron.Schedule.parse(configuration!.cronExpression);
_task = _cron.schedule(schedule, () async {
debug('resuming cron job : ${DateTime.now().toString()}');
onTrigger();
});
return true;
}