Polishing.

Formatting.

See #2414
Original pull request #2419

Author: schauder

src/main/java/org/springframework/data/jpa/repository/support/SimpleJpaRepository.java

@@ -228,13 +228,13 @@ public void deleteAllByIdInBatch(Iterable<ID> ids) {
 		}
 
 		if (entityInformation.hasCompositeId()) {
-			// XXX Hibernate just creates an empty Entity when doing the getById.
-			// Others might do a select right away causing a big performance penalty.
-			// See JavaDoc for getById.
+
 			List<T> entities = new ArrayList<>();
-			ids.forEach(id -> entities.add(getById(id)));
+			// generate entity (proxies) without accessing the database.
+			ids.forEach(id -> entities.add(getReferenceById(id)));
 			deleteAllInBatch(entities);
 		} else {
+
 			String queryString = String.format(DELETE_ALL_QUERY_BY_ID_STRING, entityInformation.getEntityName(),
 					entityInformation.getIdAttribute().getName());