ENQUEUE and DEQUEUE

ENQUEUE

Appointments have to be locked by the user of this class. This method can be used for this purpose.

DEQUEUE

Unlocks a locked appointment.

Structure

Enqueue

Import Parameters

• WAIT

  This indicator specifies whether the lock attempt is to be repeated after a certain amount of time if the appointment is currently locked by another user. If this indicator is not set, the lock attempt is canceled immediately in this case.

Exceptions

• FOREIGN_LOCK

  The appointment is currently locked by another user. For more information, see the MESSAGE variables of the system parameters (SYST).

• ENQUEUE_FAILURE

  Either an incorrect GUID was specified during instantiation or there is a problem with lock management.

• NO_APPOINTMENT_ID

  The appointment that is to be locked has not yet been created on the database. Call the SAVE method to assign an ID to the appointment.