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 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…
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 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…
ByThorben JanssenJPA 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…
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 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…
ByThorben JanssenLike all object-oriented programing languages, Java supports the fundamental concepts of inheritance and composition. There is an important difference between both concepts. Inheritance enables you to model an is-a association between two classes by extending a superclass. Composition models a has-a association by referencing another class in an instance variable. You can use both concepts…