I am a newbie to Java Persistence API and Hibernate. What is the difference between FetchType.LAZY and FetchType.EAGER in Java Persistence API? 17 ...
-
April 28, 2022
- 0 Comments
Closed. This question is opinion-based. It is not currently accepting answers. Closed 4 years ago. Locked. This question and its answers are locked ...
-
April 28, 2022
- 0 Comments
I receive following error when I save the object using Hibernate object references an unsaved transient instance - save the transient instance before ...
-
April 22, 2022
- 0 Comments
What is the difference between CrudRepository and JpaRepository interfaces in Spring Data JPA? When I see the examples on the web, I see ...
-
April 17, 2022
- 0 Comments
EntityManager.merge() can insert new objects and update existing ones. Why would one want to use persist() (which can only create new objects)? 15 ...
-
April 15, 2022
- 0 Comments
Error creating bean with name ‘entityManagerFactory’ defined in class path resource : Invocation of init method failed
JpaRepository extends PagingAndSortingRepository which in turn extends CrudRepository. Their main functions are: Because of the inheritance mentioned above, JpaRepository will have all the functions of CrudRepository and PagingAndSortingRepository. So if you don’t ...
-
April 7, 2022
- 0 Comments
The EntityManager doesn’t flush change automatically by default. You should use the following option with your statement of query: @Modifying(clearAutomatically = true) @Query("update ...
-
April 7, 2022
- 0 Comments
First remove all of your configuration Spring Boot will start it for you. Make sure you have an application.properties in your classpath and add the ...
-
April 7, 2022
- 0 Comments