Skip to main content


Eclipse Community Forums

      Home
Home » Eclipse Projects » EclipseLink » InheritancePolicy SingleTableStrategy in Dynamic Persistence
InheritancePolicy SingleTableStrategy in Dynamic Persistence [message #1063015] Tue, 11 June 2013 15:13 Go to next message
Eclipse UserFriend
as Specified in Eclipselink Source code isJoinedStrategy = true; by default
but when i applied SingleTableStrategy(means internally isJoinedStrategy = false)
there are no changes in DataBase Schema (still joined strategy is applied default)

Parent Entity Descriptor 
.getInheritancePolicy().setSingleTableStrategy();

Child Entity Descriptor 
.getInheritancePolicy().setSingleTableStrategy();
Re: InheritancePolicy SingleTableStrategy in Dynamic Persistence [message #1064268 is a reply to message #1063015] Tue, 18 June 2013 09:55 Go to previous messageGo to next message
Eclipse UserFriend
How are you building your descriptors? If you use JPA orm.xml then JPA auto-mapping and defaults will occur.

If you are building descriptors manually, then JPA auto-mapping and defaults do not apply, you must set everything.
For inheritance if you declare a table in the subclass, it will have a table, if you don't, then it won't, it will just share its parent's table.
Re: InheritancePolicy SingleTableStrategy in Dynamic Persistence [message #1064520 is a reply to message #1064268] Wed, 19 June 2013 11:49 Go to previous message
Eclipse UserFriend
James Sutherland wrote on Tue, 18 June 2013 09:55
For inheritance if you declare a table in the subclass, it will have a table, if you don't, then it won't, it will just share its parent's table.

Thanks James for your response , problem resolved Smile
I was calling 
.getInheritancePolicy().setSingleTableStrategy();
in both Parent and Child Entity Descriptor but using different table name in parent and child entity.

Solution : Using same table name for both parent and child entity with 
.getInheritancePolicy().setSingleTableStrategy();
in Parent and Child Entity Descriptor , I am able to achieve Single Table Inheritence Strategy Smile

[Updated on: Wed, 19 June 2013 11:56] by Moderator

Previous Topic:JPQL Composite Key in Dynamic Persistence
Next Topic:Problem with QueryHints.FETCH and ORDER BY clause
Goto Forum:
  


Current Time: Sun Jul 27 12:10:53 EDT 2025

Powered by FUDForum. Page generated in 0.06002 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.2.
Copyright ©2001-2010 FUDforum Bulletin Board Software

Back to the top

Sign up to our Newsletter

A fresh new issue delivered monthly