question: returns the user-object , of the user that made the change . warning can be null concode_field_sep Reservation m_newReservation concode_elem_sep Appointment m_oldAppointment concode_elem_sep Appointment m_newAppointment concode_elem_sep Map<String,Type> TYPES concode_elem_sep Allocatable m_allocatable concode_elem_sep String type concode_elem_sep Type ADD concode_elem_sep Type REMOVE concode_elem_sep User m_user concode_elem_sep Type m_type concode_elem_sep Type CHANGE concode_field_sep Appointment getOldAppointment concode_elem_sep Type getType concode_elem_sep Allocatable getAllocatable concode_elem_sep String toString concode_elem_sep Reservation getNewReservation concode_elem_sep Appointment getNewAppointment
target: User function ( ) { return m_user ; }