[Hibernate-JIRA] Commented: (HHH-1413) Multiple Bag fetches
by Sergey Koshcheyev (JIRA)
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1413?page=c... ]
Sergey Koshcheyev commented on HHH-1413:
----------------------------------------
It seems that not only multiple bag fetches should be disallowed, but any multiple collection fetches which include a bag (with possibly some exceptions). For example, this currently fails for me on H3.2 from SVN (put this into ASTParserLoadingTest.java):
public void testBagSetFetchFails() {
Session s = openSession();
s.beginTransaction();
Human human = new Human();
human.setFriends(new ArrayList());
Human friend1 = new Human();
Human friend2 = new Human();
human.getFriends().add(friend1);
human.getFriends().add(friend2);
friend1.setNickNames(new TreeSet());
friend1.getNickNames().add("nick1");
friend1.getNickNames().add("nick2");
friend2.setNickNames(new TreeSet());
friend1.getNickNames().add("nick21");
friend1.getNickNames().add("nick22");
s.save(human);
s.save(friend1);
s.save(friend2);
s.getTransaction().commit();
s.close();
s = openSession();
human = (Human) s
.createQuery( "from Human h join fetch h.friends f join fetch f.nickNames nof" )
.uniqueResult();
assertTrue(Hibernate.isInitialized(human.getFriends()));
assertEquals(2, human.getFriends().size());
s.getTransaction().commit();
s.close();
}
> Multiple Bag fetches
> --------------------
>
> Key: HHH-1413
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1413
> Project: Hibernate3
> Type: Improvement
> Components: query-hql, query-criteria
> Reporter: Steve Ebersole
> Assignee: Steve Ebersole
>
>
> two options here:
> 1) disallow
> 2) fall back to subselect fetching (or another more appropriate fetching strategy) for all but one of the bags.
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17 years, 10 months