[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3916) wrong examples of elements function in HQL Documentation (14.1)

[Jordi Boixadera Planas (JIRA)]

wrong examples of elements function in HQL Documentation (14.1)
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                 Key: HHH-3916
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3916
             Project: Hibernate Core
          Issue Type: Bug
          Components: documentation
    Affects Versions: 3.3.1
            Reporter: Jordi Boixadera Planas


In the chapter "14.10. Expressions" doesn't mention that the funcions elements, exists, ... don't work with collections unless you explicitly join with that collection.

For example, one of the samples provided is:
   "from Cat cat where exists elements(cat.kittens)"
With version 3.2.5ga this example doesn't work, to make it work it should be:
   "from Cat cat left join cat.kittens where exists elements(cat.kittens)"

In the issue HHH-2667 "'illegal attempt to dereference collection' when using auto-join" it is commented that a explicit join has to be used in these cases.

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