ByThorben JanssenThanks to its ease of use, Spring Data JPA is an incredibly popular persistence framework. If developers have something to complain about, they usually criticize object-relational mapping in general or the risk of performance problems. And while you can, of course, criticize the concept of object-relational mapping, you shouldn’t blame Spring Data JPA for your…
ByThorben JanssenThe LazyInitializationException is one of the most common exceptions when working with Hibernate. There are a few easy ways to fix it. But unfortunately, you can also find lots of bad advice online. The proclaimed fixes often replace the exception with a hidden problem that will cause trouble in production. Some of them introduce performance…
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 post a comment below. Question: I got several questions, like the following one by Carme, about the mapping of a many-to-many association that contains…
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 post a comment below. Question: In one of my previous Hibernate Tips, I explained the difference between a JOIN, a LEFT JOIN, and a…
ByThorben JanssenDatabases support various data types to store date and time information. The most commonly used ones are: DATE to save a date without time information, TIME to store a time without a date, and TIMESTAMP to store date and time information. You can map all of them with JPA and Hibernate. But you need to…