Enterprise JavaBeans, 3.0

10.1. Callback Events A certain annotation represents each phase of an entity's life cycle: @javax.persistence.PrePersist @javax.persistence.PostPersist @javax.persistence.PostLoad @javax.persistence.PreUpdate ...

10.2. Callbacks on Entity Classes You can have an entity bean instance register for a callback on any of these life cycle events by annotating a public, private, protected, or package-protected method...