DATAES-765 - Pageable.unpaged() is not used to build a query returning all documents.

Original PR: #409

src/main/java/org/springframework/data/elasticsearch/core/AbstractElasticsearchTemplate.java

@@ -15,6 +15,8 @@ import org.springframework.util.StringUtils;
  */
 public abstract class AbstractElasticsearchTemplate {
 
+	static final Integer INDEX_MAX_RESULT_WINDOW = 10_000;
+
 	private static final Logger LOGGER = LoggerFactory.getLogger(AbstractElasticsearchTemplate.class);
 
 	protected ElasticsearchConverter elasticsearchConverter;

src/main/java/org/springframework/data/elasticsearch/core/ElasticsearchRestTemplate.java

@@ -1347,6 +1347,9 @@ public class ElasticsearchRestTemplate extends AbstractElasticsearchTemplate
 
 			startRecord = (int) offset;
 			sourceBuilder.size(query.getPageable().getPageSize());
+		} else {
+			startRecord = 0;
+			sourceBuilder.size(INDEX_MAX_RESULT_WINDOW);
 		}
 		sourceBuilder.from(startRecord);
 

src/main/java/org/springframework/data/elasticsearch/core/ElasticsearchTemplate.java

@@ -1124,6 +1124,9 @@ public class ElasticsearchTemplate extends AbstractElasticsearchTemplate
 
 			startRecord = (int) offset;
 			searchRequestBuilder.setSize(query.getPageable().getPageSize());
+		} else {
+			startRecord = 0;
+			searchRequestBuilder.setSize(INDEX_MAX_RESULT_WINDOW);
 		}
 		searchRequestBuilder.setFrom(startRecord);
 

src/main/java/org/springframework/data/elasticsearch/core/ReactiveElasticsearchTemplate.java

@@ -367,6 +367,8 @@ public class ReactiveElasticsearchTemplate implements ReactiveElasticsearchOpera
 
 			request.source(searchSourceBuilder);
 		} else {
+			searchSourceBuilder.from(0);
+			searchSourceBuilder.size(AbstractElasticsearchTemplate.INDEX_MAX_RESULT_WINDOW);
 			request.source(searchSourceBuilder);
 		}
 		return request;