• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Tim Cooke
  • Liutauras Vilda
  • Jeanne Boyarsky
Sheriffs:
  • Paul Clapham
  • Rob Spoor
  • Junilu Lacar
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Piet Souris
  • Carey Brown
Bartenders:

JPA: Joined Table ID of subclass

 
Ranch Hand
Posts: 41
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi everyone,

How do I override the column name of the ID of my subclass entity? Say the superclass Parent is mapped to table "parent" and its id is mapped to column "id", then I have this subclass called Child mapped to table "child" having its id mapped to column "id". I want my subclass Child to get its id mapped to column "child_id" instead. Is this even possible? Is it defined in the JPA spec? I've been reading and scanning the spec and I can't seem to find it there or probably I'm must missing it.

Using AttributeOverride(s) has no effect at all.

Thanks!
 
Ranch Hand
Posts: 553
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You use @PrimaryKeyJoinColumn for this.


 
Frankie Fuentes
Ranch Hand
Posts: 41
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Thanks! That solved it
 
reply
    Bookmark Topic Watch Topic
  • New Topic