public List<String[]> getAttributes() {
		List<String[]> l = new ArrayList<String[]>();
		String[] s = new String[2];

		if (refCatastral != null) {
			s[0] = "catastro:ref";
			s[1] = refCatastral;
			l.add(s);
		}

		s = new String[2];
		s[0] = "CAT2OSMSHAPEID";
		s[1] = getShapeId();
		l.add(s);

		return l;
	}