Oracle Forms Developer – Form Builder Reference, Volume 1

Pre-Logout trigger
Description
Fires once before Form Builder initiates a logout procedure.
Definition Level form
Legal Commands
SELECT statements, unrestricted built-ins
Enter Query Mode no
Usage Notes
Use a Pre-Logout trigger to prepare the form for logging out from the data source, particularly a non-
ORACLE data source.
If you call certain built-ins from within one of the Logout triggers, the results are undefined. For
example, the COPY built-in cannot be called from a Pre-Logout trigger because Pre-Logout fires after
the Leave the Form event. Because the form is no longer accessible at this point, the COPY operation is
not possible.
On Failure
The results of a failure depend on which of the following conditions applies:
• If Form Builder is exiting the form and the trigger fails, the form is exited gracefully, but no other
triggers are fired.
• If the trigger fails while Form Builder is attempting to execute the LOGOUT built-in from within the
trigger, Form Builder raises the FORM_TRIGGER_FAILURE exception.
If an exception is raised in a Pre-Logout trigger, Form Builder does not fire other triggers, such as On-
Logout and Post-Logout .
Fires In
LOGOUT
See Process Flowcharts
485