private String rangesAsString() { assert !ranges.isEmpty(); StringBuilder sb = new StringBuilder(); AbstractType at = (AbstractType) ranges.comparator(); assert at != null; Iterator<RangeTombstone> iter = rangeIterator(); while (iter.hasNext()) { RangeTombstone i = iter.next(); sb.append("["); sb.append(at.getString(i.min)).append("-"); sb.append(at.getString(i.max)).append(", "); sb.append(i.data); sb.append("]"); } return sb.toString(); }