Add Transactional annotation to deleteAllById.

Original pull request #1370

Author: koval666

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/repository/support/SimpleJdbcRepository.java

@@ -34,6 +34,9 @@
  * @author Jens Schauder
  * @author Oliver Gierke
  * @author Milan Milanov
+ * @author Chirag Tailor
+ * @author Diego Krupitza
+ * @author Dmitriy Kovalenko
  */
 @Transactional(readOnly = true)
 public class SimpleJdbcRepository<T, ID> implements PagingAndSortingRepository<T, ID> {
@@ -138,10 +141,7 @@ public void delete(T instance) {
 		entityOperations.delete(instance, entity.getType());
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.repository.deleteAll#delete(java.lang.Iterable)
-	 */
+	@Transactional
 	@Override
 	public void deleteAllById(Iterable<? extends ID> ids) {
 		ids.forEach(it -> entityOperations.deleteById(it, entity.getType()));