CODEWITHSUNDEEP
quartz.net
lyf
lyf

Reputation: 29

Construct Quartz.Net Cron Expression for a requirement

I have a requirement to send email reminder to customers. I'm trying to trigger a Quartz job based on a datetime that is X weeks later after an event. In the Quartz job, I'm supposed to check for some condition whether it happened or not. If condition is false (e.g. no action from customer), I have to send another reminder Y weeks later. I then check again for the same condition, if false, I will send last reminder on a specific datetime that is known to me right at the start of this whole process.

Any idea how to construct the cron expression? Thanks

lyf

Upvotes: 1

Views: 893

Answers (1)

LeftyX
LeftyX

Reputation: 35597

I suppose you're using C#, right? You can use this cron:

var CronReminderExpression = string.Format("0 0 9 1/{0} * ? *", (PeriodicityLength*7).ToString());

where PeriodicityLength is the number of weeks. I am multiplying for 7 cause there's no proper expression for weeks or, at least, I haven't been able to find it. You can find a cron expression builder here.
Quartz.net 2.0 supports a new trigger called CalendarIntervalTrigger. You can read more here. You can chain jobs this way.

Upvotes: 2

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