Timer Event Listener
The Timer event listener generates a standard event based on a timer expression following some start trigger.
Timer Expression
![timer expression 1](_images/timer-expression-1.png)
The Attribtutes/Timer Expression context menu action can specify either a fixed date and time or a duration, a calculated value, or a repeating cycle.
![timer expression type](_images/timer-expression-type.png)
The Timer expression type opens a dialog to set the value.
![timer expression 2](_images/timer-expression-2.png)
If the type is Expression, the dialog takes a FEEL expression of case file items that returns a date and time or duration.
![timer feel expression](_images/timer-feel-expression.png)
Start Trigger
If the Timer Expression is a duration, it is measured from the Start Trigger specified by the Attributes/Start Trigger context menu action.
![start trigger](_images/start-trigger.png)
Parameters of the specification include:
-
Type of item - Either plan item or file item
-
Source - Name of the triggering item
-
Standard Event - Standard event of the triggering item