/** {@inheritDoc} */
@Override
protected void writeAttributes(FreeColXMLWriter xw) throws XMLStreamException {
super.writeAttributes(xw);
// Write identifier, Location will match Object
if (destination != null) {
xw.writeAttribute(DESTINATION_TAG, destination.getId());
if (transportable != null) {
xw.writeAttribute(TRANSPORTABLE_TAG, transportable.getId());
}
}
}
