[Hibernate-issues] [Hibernate-JIRA] Commented: (HB-290) Allow component in IS NULL HQL

[<leg...@at...>]

The following comment has been added to this issue:

     Author: Gavin King
    Created: Tue, 26 Aug 2003 1:24 PM
       Body:
Actually, you CAN always name each property of a component or composite id (even in the case of an association).

OTOH, this is a desirable feature, certainly.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-290


Here is an overview of the issue:
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        Key: HB-290
    Summary: Allow component in IS NULL HQL
       Type: New Feature

     Status: Unassigned
   Priority: Major

    Project: Hibernate2
 Components: 
             core

   Assignee: 
   Reporter: Emmanuel Ligne

    Created: Tue, 26 Aug 2003 1:27 AM
    Updated: Tue, 26 Aug 2003 1:27 AM

Description:
Allow paths to components (or classes) in IS (not) NULL statement and
not only terminal properties. As long as component types are concerned,
testing "is null" corresponds to testing each column of the component
(or each column of the key for a class), based on the values returned
by the nullSafeSet(null) on the component or key type.

This would allow usage of multi-column ids, as for now these cannot
be used in HQL (cannot name each column as in composite-id).



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