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ifndef::rootdir[:rootdir: {docdir}/..]
=== Cron expression
[source]
.Cron expression format
----
----
.Cron expression fields
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|=======================================================================================================================
| Order | Name | Supported values | Supported field format | Optional
| 1 | seconds | 0-59 | CONST, LIST, RANGE, WILDCARD, INCREMENT | false
| 2 | minutes | 0-59 | CONST, LIST, RANGE, WILDCARD, INCREMENT | false
| 3 | hours | 0-23 | CONST, LIST, RANGE, WILDCARD, INCREMENT | false
| 4 | day-of-month | 1-31 | CONST, LIST, RANGE, WILDCARD, INCREMENT, ANY, LAST, WEEKDAY | false
| 5 | month | 1-12 or JAN-DEC | CONST, LIST, RANGE, WILDCARD, INCREMENT | false
| 6 | day-of-week | 1-7 or SUN-SAT | CONST, LIST, RANGE, WILDCARD, INCREMENT, ANY, NTH, LAST | false
| 7 | year | 1970-2099 | CONST, LIST, RANGE, WILDCARD, INCREMENT | true
|=======================================================================================================================
.Field formats
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|=======================================================================================================================
| Name | Regex format | Example | Description
| CONST | \d+ | 12 | exact value
| LIST | \d+,\d+(,\d+)* | 1,2,3,4 | list of constants
| RANGE | \d+-\d+ | 15-30 | range of values from-to
| WILDCARD | \* | * | all values withing the field
| INCREMENT | \d+\/\d+ | 0/5 | initial number / increments, 2/5 means 2,7,9,11,16,...
| ANY | \? | ? | any day(apply only to day-of-week and day-of-month)
| NTH | \# | 1#3 | nth day of the month, 2#3 means third monday of the month
| LAST | \d*L(\+\d+\|\-\d+)? | 3L-3 | last day of the month in day-of-month or last nth day in the day-of-week
| WEEKDAY | \# | 1#3 | nearest weekday of the nth day of month, 1W is the first monday of the week
|=======================================================================================================================
.Examples
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| Cron expression | Description
| * * * * * ? | Every second
| 0/2 * * * * ? * | Every 2 seconds
| 0 45 9 ? * * | Every day at 9:45
| 0 15 8 ? * MON-FRI | Every workday at 8:15
|=======================================================================================================================
