If there is one thing that’s often criticized about JPA and Hibernate, it’s that it sometimes execute more queries than you expected. And I’m not talking about 1 or 2 additional queries. I’m talking about dozens or even hundreds of them. The worst thing about it is that you don’t recognize that problem if you…
Hibernate Tips is a series of posts in which I describe a quick and easy solution for common Hibernate questions. If you have a question for a future Hibernate Tip, please leave a comment below. Question: I’m working with a legacy database, and I need to map an entity to 2 database tables. Is there…
Hibernate Tips is a series of posts in which I describe a quick and easy solution for common Hibernate questions. If you have a question for a future Hibernate Tip, please leave a comment below. Question: Updating both ends of a bidirectional association is an error-prone task. What’s the best way to implement it in…
JPA and Hibernate make the implementation of simple CRUD operations extremely easy and efficient. But they lack support for complex queries. You can use JPQL and the Criteria API to define queries of mediocre complexity. If you need more, you need to write a native SQL query as a plain, un-typed String and handle the…
Hibernate Tips is a series of posts in which I describe a quick and easy solution for common Hibernate questions. If you have a question for a future Hibernate Tip, please leave a comment below. Question: You explained that I should use a JOIN FETCH clause to initialize all associations of my entity that I…
