How to trigger Hibernate PostUpdateEventListener when using javax.persistence.Query.executeUpdate()

Question

I have a class that implements PostUpdateEventListener, like this:

public class MyListener implements PostUpdateEventListener {

        @Override
        public void onPostUpdate(PostUpdateEvent event) {}
}

When I try something like the code below, the record is updated but my listener is not called:

getEntityManager().createQuery("update MyObject set myAttribute = null where idMyObject in (:ids)")
.setParameter("ids", idsList)
.executeUpdate();
getEntityManager().flush();

When I use the variant below, it got called:

myObject.setMyAttribute(null);
getEntityManager.merge(myObject);
getEntityManager.flush();

As I have a lot of objects to update, a bulk update makes sense, but I need to keep the listener call.

Any advice on how to achieve this?

Thank you!