Computer scienceBackendSpring BootSpring DataSpring Data JPA

JPA PersistenceContext

Entity difference

Report a typo

Two services get the same object from the database by ID.

Java

EntityManager entityManager1 = entityManagerFactoryBean.getObject().createEntityManager();
EntityManager entityManager2 = entityManagerFactoryBean.getObject().createEntityManager();

Post post1 = entityManager1.find(Post.class, 1);
Post post2 = entityManager2.find(Post.class, 1);

Kotlin

val entityManager1 = entityManagerFactoryBean.getObject()!!.createEntityManager()
val entityManager2 = entityManagerFactoryBean.getObject()!!.createEntityManager()

val post1 = entityManager1.find(Post::class.java, 1)
val post2 = entityManager2.find(Post::class.java, 1)

P.S. We know for sure that a post with this ID exists.
Select all correct statements:

Select one or more options from the list

Post1 and Post2 refer to different objects

Field values of both entities aren't equal

Field values of both entities are equal

Post1 and Post2 refer to the same object.

___

Create a free account to access the full topic