Add CRON like support on the annotation @Schedule

[thibaultmeyer]

Information

• Enhancement
• Non-breaking API change

Description

This PR adds the possibility to use a CRON expression to launch a job at regular intervals without worrying about when the application is started, without any extra dependencies.

The CRON expression can have second, minute, hour, day of month, month and day of week.

// ┌───────────── second (0 - 59)
// │ ┌───────────── minute (0 - 59)
// │ │ ┌───────────── hour (0 - 23)
// │ │ │ ┌───────────── day of the month (1 - 31)
// │ │ │ │ ┌───────────── month (1 - 12)
// │ │ │ │ │ ┌───────────── day of the week (0 - 6) (Sunday to Saturday)
// │ │ │ │ │ │
// * * * * * *

Supported :

• Wildcards (* or ?)
• Single value (ie: 1), Range (ie: 0-59) or list (ie: 10,20,30) can be used
• Step value (ie : */5)

[raphaelbauer]

Looks good!

Can you please add the Apache licence headers to the new files? And just to be 100% sure - the code is not copied from another project - correct?

[thibaultmeyer]

Yes, the code was not copied from another project. I add the Apache licence header on new files.

Edit: Done + Rebase to resolve conflict on Changelog.md

@raphaelbauer

[raphaelbauer]

Really nice!