Spring scheduler fixed delay based on time of day

Question

All,

Is there a way I can use spring scheduler which changes the fixedRate based on time of day?

For eg: a method should run with a rate of 1000ms for 10-12am And then switch to 5000ms after 12am

Or do I have to create multiple methods with different crons?

Answer 1

Using @Scheduled, try this:

@Component
public class ScheduledConfiguration {
    
    @Scheduled(cron = "* * 10-11 * * ?")
    @Scheduled(cron = "0/5 * 0-9,12-23 * * ?")
    public void execScheduledTask() {
        System.out.println("Now: " + new Date());
    }
    
}

You need to use two cron configurations:

* * 10-11 * * ?: every second, of every minute, if the hour part of today is 10 or 11, of every day, of every month, every day of the week.

0/5 * 0-9,12-23 * * ?: every 5 seconds starting at 0 seconds, of every minute, if the hour part of today is between 0 and 9 or between 12 and 23, of every day, of every month, every day of the week

See more about this here and here