Introduction In this article, we are going to see why there is no benefit in using the Set collection type when mapping a bidirectional JPA OneToMany association. While the @OneToMany annotation can be used to map both unidirectional and bidirectional associations, as I explained this article, you should avoid the unidirectional mapping since it can lead to very inefficient SQL…
#bidirectional
3 posts
26 Nov 2024
24 Apr 2024
Introduction In this article, we are going to see what is the best way we can use OneToOne optional attribute so that we can avoid N+1 query issues. One-To-One table relationship As I explained in this article, in a one-to-one table relationship, the parent and the child tables share the Primary Key column values because the child table Primary Key…
16 Aug 2023
Introduction In this article, we are going to see what are the best way to use JPA bidirectional sync methods for one-to-many, one-to-one, and many-to-many associations. For an introduction to why you need sync methods for your bidirectional JPA associations, check out this article first. Domain Model For this article, we are going to use the following entities that are…