.setQuery(QueryBuilders.matchAllQuery()).setSize(scrollSize)
.execute().actionGet();
while (true) {
final SearchHits searchHits = response.getHits();
for (final SearchHit searchHit : searchHits) {
final AccessResult accessResult = Beans
.createAndCopy(EsAccessResult.class,
searchHit.getSource())
.converter(new EsTimestampConverter(), timestampFields)
.excludesWhitespace().execute();
callback.iterate(accessResult);