spring - JPA Callback not being called

Question

I am new to hibernate. I want to know if any crud operation happens so I decided to use jpa callback annotations. The problem is any of those @PrePersist @PostPersist @PreRemove @PostRemove not being called when I run the project and use UI components to perform delete & add operations. I use primefaces datatable so delete operation bounded to a ManagedBean -> MessageService ->MessageDAO. IF I only execute the main file to test it it works perfectly

MessageDAO:

@Component
public class MessageDAO {


@PersistenceContext
private EntityManager em;

@Transactional
public void register(Message message) {
    em.persist(message);
}


@Transactional
public void delete(Integer id) {

     Message m =  em.find(Message.class, id);
     em.remove(em.merge(m));
   }
}

MessageListener

public class MessageListener {

@PrePersist
public void prePersist(Message o) {
    System.out.println("Pre-Persistiting operation: " );
}

@PostPersist
public void postPersist(Message o) {
    System.out.println("Post-Persist operation: " );
}

@PreRemove
public void preRemove(Message o) {
    System.out.println("Pre-Removing operation: " );
}

@PostRemove
public void postRemove(Message o) {
    System.out.println("Post-Remove operation: " );
}

@PreUpdate
public void preUpdate(Message o) {
    System.out.println("Pre-Updating operation: ");
}

@PostUpdate
public void postUpdate(Message o) {
    System.out.println("Post-Update operation: " );
  }
}

Message

  @EntityListeners(MessageListener.class)
  @Entity
  @Table(name = "messages")
public class Message implements Serializable  {

private Integer messageId;

private String subject;

private String content;

public Message(){}

public Message(Integer messageId, String subject, String content) {
    this.messageId = messageId;
    this.subject = subject;
    this.content = content;
}


@Id
@GeneratedValue
@Column(name = "MESSAGE_ID")
public Integer getMessageId() {
    return messageId;
}

//getter setter
@PrePersist
public void prePersist() {
    System.out.println("OLDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU!!!!!!!!!!!!");
}

}

Answer 1

As per the JPA spec, JPA callbacks/listeners are not called when using JPQL BULK DELETE. They are only called when using the JPA API (em.remove). Similarly the cache and managed entity objects do not reflect such a JPQL BULK DELETE call.