JPA Associations

JPA Associations

JPA ASSOCIATIONS : Il existe plusieurs type d’associations entre entités :• One to One (1:1) -Unidirectionnelle / Bidirectionnelle• One to Many (1:N) -Unidirectionnelle / Bidirectionnelle• Many to One (N:1) -Unidirectionnelle / Bidirectionnelle• Many to Many (N:M) -Unidirectionnelle / Bidirectionnelle– TP : Mise en oeuvre des différentes associations JPA ASSOCIATIONS : • One To One entre […]

En Lire Plus

Solution for : Why hibernate does not insert into child table ?

If Hibernate does not insert element in child table , The reason is because the mapping does not cascade the persist operation. Example : The solution is : Cascade operations are extremely useful, but be mindful of their potential side effects, particularly if you modify Ticket which you don’t intend for an operation to be […]

En Lire Plus

No Session found for current thread

Request processing failed; nested exception is org.hibernate.HibernateException: No Session found for current thread Solution : If you have this exception using Hibernate , that mean that you forgot the annotation @Transaction in your service implement class function that caused this Exception.

En Lire Plus