Writing w = getWriting(BitSet.class);
el.setText(w.toString(rc.getRaster().getForbidden()));
el.addAttribute("length", "" + rc.getRaster().getForbidden().getLength());
} else if (constr instanceof EventOrderConstraint) {
EventOrderConstraint eoc = (EventOrderConstraint) constr;
el.addElement("event").addAttribute("ref", "" + eoc.getEvent().getId());
for (Event ev : eoc.getBefores()) {
el.addElement("beforeEvent").addAttribute("ref", "" + ev.getId());
}
for (Event ev : eoc.getFollows()) {
el.addElement("followsEvent").addAttribute("ref", "" + ev.getId());