If you are implementing Java applications which store data in a database, the chances are pretty high that you are using Hibernate. And as you are reading this post, the chances are even higher đ Hibernate is by far the most popular JPA implementation and there are good reasons for it. Implementing the basic database access with Hibernate…
The GeeCON Prague 2015 took place last week on the 22nd and 23rd. And as you might already know, I had the pleasure to speak about performance tuning with Hibernate and JPA 2.1. It was a very well organized 2-day conference that took place in the CineStar Praha cinema. Have you had the chance to attend a…
Defining a static named query via the @NamedQuery annotation is the most common way in JPA. It has the main advantage that the persistence provider can compile and validate the query at start-up time. But you also have to define the query statically at compile time. OK, you can still define a dynamic query at runtime but how do you…
Anatole Tresch (@atsticks) and I wrote a german article for the Java Aktuell magazine about the progress and current state of the CDI specification. And they send me a special version of their magazine to publish it on the blog. So you can download the article here or read it below.
When you write a criteria query or create a dynamic entity graph, you need to reference the entity classes and their attributes. The quickest and easiest way is to provide the required names as Strings. But this has several drawbacks, e.g. you have to remember or look-up all the names of the entity attributes when you write the query….