return pos2 - pos1;
return pos1 - pos2;
    public int compare(Object o1, Object o2) {	Row r1 = (Row)o1;	Row r2 = (Row)o2;	int pos1 = string.indexOf(r1.id);	int pos2 = string.indexOf(r2.id);	if (pos1 == -1 && pos2 != -1)	    return 1;	if (pos2 == -1 && pos1 != -1)	    return -1;	if (pos1 == -1 && pos2 == -1)	    return (r1 == null) ? -1 : r1.id.compareTo(r2.id);	return pos2 - pos1;    }