scheduled cron expression that never runs

Question

What I tried:

 @Scheduled(cron="* * * 08 04 2099")

I want cron expression that never executes.can any one help me with the expression.

Thanks in advance...!

If you want cron not to execute then why would you write one? — Muhammad Waqas Dilawar, Jul 15 '20 at 06:09
I want to set cron based on value from database(only if value matches with database value then cron should execute else the cron should not execute) — bollam_rohith, Jul 15 '20 at 06:11
Does this answer your question? [cron job that will never execute](https://stackoverflow.com/questions/8324306/cron-job-that-will-never-execute) — Tim Biegeleisen, Jul 15 '20 at 06:12
You need to have cron but the operation can be executed based on database condition. — Muhammad Waqas Dilawar, Jul 15 '20 at 06:14
on spring boot's cron interpreter this causes Invalid cron expression "0 0 5 31 2 *" led to runaway search for next trigger — bollam_rohith, Jul 15 '20 at 06:14
CRON is bound to time and condition is bound to database, so tried to give you sample in answer. — Muhammad Waqas Dilawar, Jul 15 '20 at 06:39
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/217868/discussion-between-muhammad-waqas-dilawar-and-bollam-rohith). — Muhammad Waqas Dilawar, Jul 15 '20 at 06:59

score 1 · Accepted Answer · answered Jul 15 '20 at 06:36

This cron will run every minute and task will be bound with condition. If you need different cron job then you can generate using this website.

@Scheduled(cron = "0 0/1 * 1/1 * ? *")
protected void performTask() {
    if (condition)//if value matches with database value
    {
        //perform the task
    }
}

score 1 · Answer 2 · answered Dec 07 '21 at 12:50

1

You can use.

@Scheduled(cron = "${cron.expression}")

cron.expression=-

This works from Spring 5.1.

See the docs.

answered Dec 07 '21 at 12:50

michal.jakubeczy

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scheduled cron expression that never runs

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