• 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
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Hibernate - Autogenerate composite keys

 
Greenhorn
Posts: 10
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Is there a way to autogenerate one of the components of the composite primary key using hibernate configuration file ?\

I have a table with 3 columns forming a unique key of the table. Is there a way to generate one of them using autogeneration in configuration file?

Thanx in advance.
 
ranger
Posts: 17347
11
Mac IntelliJ IDE Spring
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Probably not, because once you go beyond the surrogate key primary key solution, how is Hibernate supposed to figure out what you want. Now if the composite key contains the surrogate key then it would be autogenerated, and the database is the one responsible for making the key/index with the three fields for you.

Usually, from a database design standpoint, you always want to create a non-business logic primary key that is filled in using a sequence table.

Mark
reply
    Bookmark Topic Watch Topic
  • New Topic