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Type: New Feature New Feature
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Andy Jefferson
Reporter: Andy Jefferson
Votes: 0
Watchers: 0

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DataNucleus Store RDBMS

Support N-1 unidirectional join table relation

Created: 23/Nov/10 04:24 PM   Updated: 10/Dec/10 07:49 AM   Resolved: 24/Nov/10 08:21 PM
Component/s: ORM
Affects Version/s: None
Fix Version/s: 2.2.0.release

 Description  « Hide
A minority interest situation is where the user has

class A

class B
    A a;

and wants to map the relation using a join table. This is effectively an N-1 uni via join table (no collection present). We need to be able to
1. generate the schema of the join table and its respective indices/FKs
2. do inserts (from InsertRequest/UpdateRequest)
3. do fetches (from FetchRequest)
4. do updates/deletes (from UpdateRequest/DeleteRequest)

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Andy Jefferson added a comment - 24/Nov/10 07:15 PM
SVN trunk now generates the schema (join table), does inserts, and also fetches the related object

Andy Jefferson added a comment - 24/Nov/10 08:21 PM
SVN trunk now has this supported and tested