ByThorben JanssenAll JPA implementations, including Hibernate, provide default mappings for a huge set of standard Java classes. You could model the attributes of all your entity classes using those mappings, and you would be able to map all columns of your table model. But this is often not the best fit for your business logic. A…
ByThorben JanssenMost developers know that the JPA specification defines the string-based JPQL query language and that Hibernate extends it to support things like database-specific functions, window functions, and set-based operations. But most developers don’t know that since version 6, Hibernate has done the same for JPA’s Criteria API. Extending an API is, of course, a little more complex…
ByThorben JanssenSome of the most important features in every persistence framework are the ones that enable us to query data and retrieve it in our preferred format. In the best case, you can easily define and execute standard queries, but you can also define very complex ones. Spring Data JDBC provides you with all of this,…
ByThorben JanssenHibernate 6 introduced a new configuration parameter and an interface to define the implicit naming strategy for database sequences and tables used to generate primary key values. When you migrate an existing application to Hibernate 6, you quickly recognize that change because the default naming strategy has changed. Due to that, Hibernate might try using…
ByThorben JanssenAs a Java developer, you can choose between various frameworks to store your data in a relational database. If you’re looking for an object-relational mapping framework that follows DDD and is not very complex but still handles most of the standard CRUD operations for you, you should try Spring Data JDBC. In his recent Expert…