[Hibernate-issues] [Hibernate-JIRA] Closed: (HB-156) Qualified one-to-many

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Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Sat, 2 Aug 2003 3:52 AM

Closing this, because the user didn't explain how the existing functionality is insufficient.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-156


Here is an overview of the issue:
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        Key: HB-156
    Summary: Qualified one-to-many
       Type: New Feature

     Status: Closed
   Priority: Minor
 Resolution: DUPLICATE

    Project: Hibernate2
   Versions:
             2.0.1

   Assignee: 
   Reporter: Christian Bauer

    Created: Tue, 8 Jul 2003 3:36 PM
    Updated: Sat, 2 Aug 2003 3:52 AM

Description:
Ability to add static criteria to what would otherwise be a one-to-many relationship, to
make it into a one-to-one relationship.  Example:  Account has one-to-many relationship to
Address by way of address.account_id foreign key.  However, there is only one "primary"
address for a given account, indicated in the datamodel by address.is_primary = 'Y' for
exactly one row for any given Account.  Enhancement would let me create a property
"primaryAddress" on Account that is mapped like a one-to-many except that it also includes
something like "...AND primary = true".
 
 This allows me to obtain an Account object and call getPrimaryAddress and have that SQL
query the address table "WHERE account_id = ? AND is_primary = 'Y'".
 


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