class ThemisRead extends ThemisRequest {

  public static void checkContainingPreservedColumns(Map<byte[], NavigableSet<byte[]>> familyMap)
      throws IOException {
    for (Entry<byte[], NavigableSet<byte []>> entry : familyMap.entrySet()) {
      byte[] family = entry.getKey();
      if (entry.getValue() != null) {
        for (byte[] qualifier : entry.getValue()) {
          checkContainingPreservedColumn(family, qualifier);
        }
      }
    }
  }

}