ByThorben JanssenJPA and Hibernate allow you to use DTOs and entities as projections in your JPQL and Criteria queries. When I talk about Hibernate performance in my online training or at a workshop, I get often asked, if it matters which projection you use. The answer is: YES! Choosing the right projection for your use case…
ByThorben JanssenHibernate Tips is a series of posts in which I describe a quick and easy solution for common Hibernate questions. If you have a question you like me to answer, please leave a comment below. Question: I need to initialize the associations of multiple entities. Is there a way to tell Hibernate to fetch the…
ByThorben JanssenOne of the benefits of using JPA and Hibernate is that it provides an abstraction of database-specific dialects and features. So, in theory, you can implement an application, connect it to one of the supported databases and it will run without any code changes. Hibernate does that really well. But let’s be honest, you didn’t…
ByThorben JanssenThe CascadeTypes REMOVE and ALL, which includes REMOVE, provide a comfortable option to remove an entity together with all its child entities. But it creates several issues for to-many associations, and you should only use it for to-one relationships.
ByThorben JanssenJPA 2.2 was only a small release, and I think that’s ok. JPA 2.1 already provides a good enough toolset for most applications. But there was nevertheless some work to do.