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--- tutorial:adm:create_and_configure_trigger [2019/07/10 07:00]
doischert
+++ tutorial:adm:create_and_configure_trigger [2020/05/13 14:42] (current)
apeterova [Cron trigger]
@@ Line 5: / Line 5: @@
 {{ :tutorial:adm:scheduled_tasks_trigger_01.png |}}
 So we have three scheduled tasks, none of them has any trigger. Let´s start with the first scheduled task (by description). Click on the **Add** button in **Scheduled starts** and a pop-up window will show up.
+We have four types of triggers:
+  * Once time start trigger - task starts once in configured date and time.
+  * Repeated start trigger - configure period to repeated task start. Configured period is converted to cron expression on the background.
+  * Cron trigger - cron expression can be configured directly.
+  * Other task trigger - task is started after other (dependent) task ends.
+==== Once time start trigger ====
 {{ :tutorial:adm:scheduled_tasks_trigger_02.png |}}
@@ Line 16: / Line 24: @@
 Now click the **Add** trigger button next to **the second scheduled task**.
-{{ :tutorial:adm:scheduled_tasks_trigger_04.png |}}
+==== Repeated start trigger ====
-Now select the trigger type **Cron**. In **Cron expression** field you can add an expression which could start the scheduled task periodically. We set **0 0 7 * * ?**, meaning the scheduled task will be started every day at 7 AM.
+{{ :tutorial:adm:repeated-trigger.png |}}
-( Cron expression tutorial: http://www.quartz-scheduler.org/documentation/quartz-2.3.0/tutorials/crontrigger.html )
+Now select the trigger type **Repeated start**. We can choose interval from prepared options which could start the scheduled task periodically from given valid date.
+Configured period is converted to cron expression on the background. Behavior is the same as cron trigger, which is described below.
+==== Cron trigger ====
+{{ :tutorial:adm:cron-trigger.png |}}
+Now select the trigger type **Cron**. In **Cron expression** field you can add an expression which could start the scheduled task periodically. We set **0 0 7 * * ?**, meaning the scheduled task will be started every day at 7 AM. When valid date is configured, then first start of the task will be postponed to given date.
+Cron expression tutorial: http://www.quartz-scheduler.org/documentation/quartz-2.3.0/tutorials/crontrigger.html
 Other common combinations:
   * **0 0 * * * ?** - start the task every hour
+  * **0 0 7 * * ?** - start the task every day at 7 AM
+  * **0 0 5 ? * MON** - start the task every monday at 5 AM
+  * **0 0 11/12 * * ?** - start the task twice every day - at 11 AM and at 11 PM
 {{ :tutorial:adm:scheduled_tasks_trigger_05.png |}}
 In the picture above, we can see another trigger and the next scheduled start is tomorrow on 31st January at 7 AM. This trigger will not disappear after that date, but will be updated to another start.
+==== Other task trigger ====
 {{ :tutorial:adm:scheduled_tasks_trigger_06.png |}}