Google App Engine - DELETE JPQL Query and Cascading
- by Taylor Leese
I noticed that the children of PersistentUser are not deleted when using the JPQL query below. However, the children are deleted if I perform an entityManager.remove(object). Is this expected? Why doesn't the JPQL query below also perform a cascaded delete?
@OneToMany(mappedBy = "persistentUser", cascade = CascadeType.ALL)
private Collection<PersistentLogin> persistentLogins;
...
@Override
@Transactional
public final void removeUserTokens(final String username) {
final Query query = entityManager.createQuery(
"DELETE FROM PersistentUser p WHERE username = :username");
query.setParameter("username", username);
query.executeUpdate();
}
