Hibernate Logging: Tips and Solutions to Common Problems

How to solve some of the most common Hibernate issues with proper logging? Hibernate’s logging configuration is an important but…

Read More »

5 Common Hibernate Exceptions and How to Fix Them

See how you can easily solve the most common issues with Hibernate Hibernate is probably the most popular JPA implementation…

Read More »

5 ways to initialize lazy relations and when to use them

Lazy loading of relations between entities is a well established best practice in JPA. Its main goal is to retrieve…

Read More »

Java EE Pitfalls #1: Ignore the default lock of a @Singleton

EJB Singleton Beans were introduced by the EJB 3.1 specification and are often used to store cached data. This means,…

Read More »

Testing with Aliens: How to test a JPA type converter with Arquillian

This post was written together with +Aslak Knutsen (@aslakknutsen). JPA type converters provide an easy way to define how an…

Read More »

How to use a JPA Type Converter to encrypt your data

A few days ago, I read an interesting article by Bear Giles about Database encryption using JPA listeners from 2012.…

Read More »

JPA 2.1 Entity Graph – Part 2: Define lazy/eager loading at runtime

This is my second post on JPA 2.1 Entity Graphs. The first post described the usage of named entity graphs.…

Read More »

JPA 2.1 Entity Graph – Part 1: Named entity graphs

Lazy loading was often an issue with JPA 2.0. You have to define at the entity if you want to…

Read More »

Generate your JAXB classes in a second with xjc

Since JAXB is part of the JDK, it is one of the most often used frameworks to process XML documents.…

Read More »