Introduction In this article, we are going to see how the Hibernate event listeners work and how you add your custom listeners to intercept entity changes and replicate them to other database tables. Recently, one of my blog readers asked a very good question on StackOverflow. Since my main goal as a Hibernate Developer Advocate is to help Java developers get the most out of JPA and Hibernate, I decided that this is a good opportunity to talk about the Hibernate event listener mechanism.