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How do I map this: (collection key != parent primary key)

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qplnian

Post subject: How do I map this: (collection key != parent primary key)

Posted: Mon Mar 08, 2004 11:07 am

Newbie

Joined: Tue Feb 17, 2004 2:51 pm
Posts: 10

Hello!

What I want is to map a one-to-many from
PARENT to CHILD using collection_id.

Judging from previous posts I get the impression this can't be expressed in the mapping, but instead I would need a custom getChildren() method which does a HQL query, it that correct?

(This is legacy data)

PARENT_TABLE
============
parent_id (PRIMARY KEY)
collection_id (UNIQUE)

CHILD_TABLE
===========
child_id (PRIMARY KEY)
collection_id

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bruehlicke

Post subject:

Posted: Mon Mar 08, 2004 4:06 pm

Beginner

Joined: Fri Mar 05, 2004 11:14 am
Posts: 38
Location: Houston, Texas

Exact same problem I have !

Even more intrigue since my situation is

PARENT_TABLE
============
parent_id (PRIMARY KEY)
parent_collection_id (UNIQUE)

CHILD_TABLE
===========
child_id (PRIMARY KEY)
child_collection_id

i.e. one-to-many from PARENT to CHILD using parent_collection_id against child_collection_id

B

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bruehlicke

Post subject:

Posted: Thu Mar 11, 2004 4:47 pm

Beginner

Joined: Fri Mar 05, 2004 11:14 am
Posts: 38
Location: Houston, Texas

See related post at

http://forum.hibernate.org/viewtopic.ph ... 09#2194509

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