Based on most discussions online and at conferences, there seem to be 2 kinds of projects that use Hibernate for their persistence layer: So, what’s the difference between these projects? Are the projects in the 2nd group more complex or have higher performance requirements? No, based on my consulting projects, that’s not the case. On…
Databases support various data types to store date and time information. The most commonly used ones are: You can map all of them with JPA and Hibernate. But you need to decide to which Java type you want to map your database column. The Java language supports a bunch of classes to represent date and…
Most Java developers encounter problems when learning how to integrate AI into their applications using SpringAI, Langchain4J, or some other library. AI introduces many new terms, acronyms, and techniques you must understand to build a good system. I ran into the same issue when I started learning about AI. In this article, I did my…
Repositories are a commonly used pattern for persistence layers. They abstract from the underlying data store or persistence framework and hide the technical details from your business code. Using Jakarta Data, you can easily define such a repository as an interface, and you’ll get an implementation of it based on Jakarta Persistence or Jakarta NoSQL….
Jakarta Data standardizes stateless repositories based on Jakarta Persistence and Jakarta NoSQL so that you can concentrate on your business code instead of handling the technical details of simple queries. In this article, I will briefly introduce the new specification and give you an overview of its stateless repositories. In future articles, we will dive…