CODEWITHSUNDEEP
quartz-schedulerschedulercrontrigger
Salman A. Kagzi
Salman A. Kagzi

Reputation: 4053

Quartz cron expression for cron triggers executed every Nth Hour/Day/Week/Month

I am developing an application that gives the user the ability to schedule some activity. Inputs that are provided by user are

  1. Value of N
  2. Option amongst Hour/Day/Week/Month
  3. Start Date
  4. Start Time

I am unable to get the cron expressions right for each of the repeat interval type i.e. Hour/Day/Week/Month so that the trigger time is calculated from the start date.

Upvotes: 1

Views: 9015

Answers (2)

stjohnroe
stjohnroe

Reputation: 3206

Quartz documentation suggests using a SimpleTrigger http://www.quartz-scheduler.org/docs/cookbook/BiDailyTrigger.html, an example for every other day:

Trigger trigger = new SimpleTrigger("trigger1", "group1");
trigger.setRepeatCount(SimpleTrigger.REPEAT_INDEFINITELY);
// 24 hours * 60(minutes per hour) * 60(seconds per minute) * 1000(milliseconds per second)
trigger.setRepeatInterval(2L * 24L * 60L * 60L * 1000L);

Note that you will need to set the trigger start time and the misfire rule.

Upvotes: 2

orjan
orjan

Reputation: 1482

I think is a good start of how to configure triggers:

http://www.opensymphony.com/quartz/wikidocs/CronTriggers%20Tutorial.html

Upvotes: 0

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