IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Using scrolls in Java
edit
IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.
Using scrolls in Java
editRead the scroll documentation first!
import static org.elasticsearch.index.query.QueryBuilders.*;
QueryBuilder qb = termQuery("multi", "test");
SearchResponse scrollResp = client.prepareSearch(test)
.setSearchType(SearchType.SCAN)
.setScroll(new TimeValue(60000))
.setQuery(qb)
.setSize(100).execute().actionGet(); //100 hits per shard will be returned for each scroll
//Scroll until no hits are returned
while (true) {
for (SearchHit hit : scrollResp.getHits().getHits()) {
//Handle the hit...
}
scrollResp = client.prepareSearchScroll(scrollResp.getScrollId()).setScroll(new TimeValue(60000)).execute().actionGet();
//Break condition: No hits are returned
if (scrollResp.getHits().getHits().length == 0) {
break;
}
}
The size-parameter is per shard, so if you run a query against multiple indices (leading to many shards being involved in the query) the result might be more documents per execution of the scroll than you would expect!