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 you like me to answer, please leave a comment below. Question: My database supports auto-incremented columns. How can I use them as primary keys in Hibernate?
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 you like me to answer, please leave a comment below. Question: I often need to provide a value that gets calculated based on an entity attribute, like the age of…
Hibernate is by far the most popular JPA implementation. This popularity brings several advantages for all users. There are lots of blog posts about it, questions and answers on popular forums, and well-established best practices. In this post, I want to summarize some best practices for JPA and Hibernate which will help you to avoid…
A few days ago, someone asked me how to map an encrypted database column to an entity attribute. I remembered that I used a @ColumnTransformer for a similar use case, a few years ago. A quick chat with the Hibernate team confirmed that they hadn’t done any major changes in that area and that the…
In the real world, most objects have a natural identifier. Typical examples are the ISBN number of a book, a company’s tax identifier or a person’s social security number. You could, of course, use these identifiers as primary keys. But most often, it’s a better idea to generate numeric, surrogate keys. They are easier to…