final String dateFormatAsInput = command.dateFormat();
final String localeAsInput = command.locale();
final String parentIdParamName = "parentId";
if (command.parameterExists(parentIdParamName) && this.parent == null) { throw new RootOfficeParentCannotBeUpdated(); }
if (this.parent != null && command.isChangeInLongParameterNamed(parentIdParamName, this.parent.getId())) {
final Long newValue = command.longValueOfParameterNamed(parentIdParamName);
actualChanges.put(parentIdParamName, newValue);
}