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The Batch/Scheduled Jobs document allows users to edit the cron expression which specifies when the particular job should be scheduled. This interface is only for OLE-created jobs (Circulation jobs for example) and not KFS-inherited jobs. To learn more about each of the jobs available in Deliver, see Batch Processes in the OLE Guide to Deliver Module
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The Batch Job document includes the Add/Edit Batch Job tab. The system automatically enters data into both the Old and New sections in this tab. Selected data fields are available for editing.
Add/Edit Batch Job definition
|
Title |
Description |
|
Job Trigger Name |
Display Only. The name of the batch job that needs to be scheduled. |
|
Job Cron Expression |
Enter the cron expression for when the job should be scheduled. |
|
Enable Job |
Check the box to allow the job to run. |
Note
OLE uses the Quartz Job Scheduler as it's authority on Cron expressions.
CRON enables users to schedule jobs to run periodically at certain times or dates. A CRON expression is a string comprised of 5 or 6 fields separated by white space that represents a set of times, normally as a schedule to execute some routine.
Example:
0 15 10 * * ?
0/2 0 12 * * ?
CRON Field definition
|
Field Placement |
Description |
|
First Field |
Represents seconds. The allowed values are 0-59. Example: 2 0 12 * * ? - This will fire the job at 12:00:02 PM every day. 0/2 0 12 * * ? - This will fire the job every 2 seconds from 12:00:00 PM to 12:00:58 PM every day. |
|
Second Field |
Represents minutes. The allowed values are 0-59. Example: 0 5 12 * * ? - This will fire the job at 12:05 PM every day. 0 0/5 12 * * ? - This will fire the job every 5 minutes from 12:00 PM to 12:55 PM every day. |
|
Third Field |
Represents hours. The allowed values are 0-23. Example: 0 5 10 12 * * ? - This will fire the job at 12:05 PM every day. 0 5 12,18 * * ? - This will fire the job every 5 minutes from 12:00 PM to 12:55 PM and from 6:00 PM to 6:55 PM every day. |
|
Fourth Field |
Represents days of the month. The allowed values are 1-31. Example: 0 5 10 12 * * - This will fire the job at 10:05 AM on the 12th day of every month. 0 0 12 1/5 * ? - This will fire the job at 12:00 PM every 5 days every month, starting on the first day of the month. |
|
Fifth Field |
Represents months. The allowed values are 1-12 or JAN-DEC. Example: 0 11 11 11 11 ? or 0 11 11 11 NOV ? - This will fire the job at 11:11 AM on November 11th of each year. |
|
Sixth Field |
Represents days of the week. The allowed values are 1-7 or SUN-SAT. Example: 0 10,44 14 ? 3 WED or 0 10,44 14 ? 3 4 - This will fire the job at 2:10 PM and 2:44 PM on every Wednesday in the month of March. 0 10,44 14 ? 3 WED-FRI - This will fire the job at 2:10 PM and 2:44 PM from Wednesday to Friday each week during the month of March. |
Special Character definition
|
Special Character |
Description |
|
'*' |
Represents all possible values. Example: 0 0 12 * * ? - This will fire the job at 12:00 PM every day of every month in each year. |
|
'?' |
Represents no specific value for the particular field. Example: 0 0 12 * * ? - This will fire the job at 12:00 PM every day of every month in each year irrespective of the day in a week. |
|
'-' |
Represents the range of values for a corresponding field. Example: 0 0 14 ? * WED-FRI - This will fire the job at 2:00 PM from Wednesday, Thursday, and Friday of every week. |
|
'/' |
Represents incremental values specified to the field Example: 0 0 0/2 * * ? - This will fire the job every 2 hours starting at 12 AM. |
|
'L' |
Represents the last value in the specified field. This character is only allowed in the fourth and sixth field. Example: 0 15 10 ? * 6L - This will fire the job at 10:15 AM on the last Friday of every month. 0 15 10 L * ? - This will fire the job at 10:15 AM on the last day of every month. |
|
'#' |
Represents the "nth" XXX day of the month. This character is only allowed in the sixth field. Example: 0 15 10 ? * 6#3 - This will fire the job at 10:15 AM on the third Friday of every month. 0 15 10 ? * 4#5 - This will fire the job at 10:15 AM on the fifth Wednesday of every month. Note that if there is not a fifth Wednesday, the job will not fire. |
