@Override
  public TimelineDomain getDomain(String domainId) throws IOException {
    try (DBIterator iterator = domaindb.iterator()) {
      byte[] prefix = KeyBuilder.newInstance().add(domainId)
          .getBytesForLookup();
      iterator.seek(prefix);
      return getTimelineDomain(iterator, domainId, prefix);
    }
  }
@Test
  public void testGetDomain() throws IOException {
    super.testGetDomain();
  }