Añade función para realizar múltiples búsquedas

package es.redmic.elasticsearchlib.data.repository;

import java.util.ArrayList;

import java.util.List;

import org.elasticsearch.action.get.MultiGetResponse;

import org.elasticsearch.action.search.MultiSearchResponse;

import org.elasticsearch.action.search.SearchResponse;

import org.elasticsearch.index.query.QueryBuilder;

import org.elasticsearch.index.query.QueryBuilders;

import org.elasticsearch.search.builder.SearchSourceBuilder;

import org.elasticsearch.search.sort.SortBuilder;

import org.elasticsearch.search.sort.SortBuilders;

import org.elasticsearch.search.sort.SortOrder;

		return searchResponseToWrapper(searchRequest(queryDTO), getSourceType(DataSearchWrapper.class));

	}

	public List<DataSearchWrapper<?>> multiFind(List<SearchSourceBuilder> searchs) {

		List<DataSearchWrapper<?>> results = new ArrayList<DataSearchWrapper<?>>();

		MultiSearchResponse resultRequest = getMultiFindResponses(searchs);

		for (MultiSearchResponse.Item item : resultRequest.getResponses()) {

			SearchResponse response = item.getResponse();

			results.add(searchResponseToWrapper(response, getSourceType(DataSearchWrapper.class)));

		}

		return results;

	}

	@Override

	protected List<?> scrollQueryReturnItems(QueryBuilder builder) {