code: public SearchRequestBuilder getSearchRequestBuilderWithMatchAll(
              boolean isSetExplain, String[] indices, String[] types,
              AggregationBuilder[] aggregationBuilders) {
          return getSearchRequestBuilderWithMatchAll(isSetExplain, indices, types,
                  null, aggregationBuilders);
      }
docs: Gets search request builder with match all.
  
  @param isSetExplain        the is set explain
  @param indices             the indices
  @param types               the types
  @param aggregationBuilders the aggregation builders
  @return the search request builder with match all