@Override
    public String toString() {
      final StringBuilder sb = new StringBuilder(32);
      sb.append(getClass().getSimpleName()).append(": tablesWithTableQuotas=")
        .append(this.tablesWithTableQuotas).append(", tablesWithNamespaceQuotas=")
        .append(this.tablesWithNamespaceQuotas);
      return sb.toString();
    }
Computes the number of regions reported for a table.
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaObserverChore.java