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 Post subject: one-to-one mapping on multiple columns in hibernate 3
PostPosted: Mon Jan 03, 2005 1:37 pm 
Newbie

Joined: Thu Dec 30, 2004 3:51 pm
Posts: 14
Hibernate version:
Hibernate 3.0

Hi,

i am trying to join 2 tables with an outer join.
i need all transactions for given criteria from table1, but values in table2 are optional (object for table2 can be null)

there are multiple columns in which i am trying to join. they can be defined as a primary key for table2, but they are not keys for table1. there should only be 1 row or null returned for each row in table1.

any suggestions for what kind of mapping setup to use? point to any examples? i was reading about some new features in hibernate 3 that might support this type of functionality.

thanks
fidster


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 Post subject:
PostPosted: Tue Jan 04, 2005 6:15 am 
Hibernate Team
Hibernate Team

Joined: Sun Sep 14, 2003 3:54 am
Posts: 7256
Location: Paris, France
a many to one shoud be OK

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Emmanuel


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