2017-03-28 17:23:01 -04:00
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[[trigger]]
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== Triggers
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Every watch must have a `trigger` that defines when the watch execution process
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should start. When you create a watch, its trigger is registered with the
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appropriate _Trigger Engine_. The trigger engine is responsible for evaluating
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the trigger and triggering the watch when needed.
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{watcher} is designed to support different types of triggers, but only time-based
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<<trigger-schedule, `schedule`>> triggers are currently available.
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2018-05-23 12:37:55 -04:00
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:edit_url: https://github.com/elastic/elasticsearch/edit/{branch}/x-pack/docs/en/watcher/trigger/schedule.asciidoc
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2017-03-28 17:23:01 -04:00
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include::trigger/schedule.asciidoc[]
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