Can I define the Entity Listeners in the Same Entity Class?

Question

E.g., will the below code run properly? Or do I have to define a separate Entity Listener for each and every entity class?

@Entity
@EntityListeners(value = Abc.class)
public class Abc{
    ...
    @PreUpdate
    public void doPreUpdate(){
    //do something
    }
    ...
}

Answer 1

You don't even need the @EntityListeners annotation. It will work just fine with just the @PreUpdate annotated method.

From javadoc for @PreUpdate:

This annotation may be applied to methods of an entity class, a mapped superclass, or a callback listener class.