Win a copy of Beginning Java 17 Fundamentals: Object-Oriented Programming in Java 17 this week in the Java in General forum!
  • 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:
  • Tim Cooke
  • Campbell Ritchie
  • Ron McLeod
  • Liutauras Vilda
  • Jeanne Boyarsky
Sheriffs:
  • Junilu Lacar
  • Rob Spoor
  • Paul Clapham
Saloon Keepers:
  • Tim Holloway
  • Tim Moores
  • Jesse Silverman
  • Stephan van Hulst
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Piet Souris
  • Frits Walraven

Hibernate - Force foreign key lookup on insert

 
Ranch Hand
Posts: 95
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hello

These are the mappings of my SQL DB:

USERACCOUNT
-------------
Userid (PK) --autoincrement



USERACCOUNTInvoice
-------------
Userid (PK) –-Foreign Key to the above
Invoics(PK) --autoincrement


In my app I create a new UserAccountInvocie object which I persist by doing a session,save(useraccount) I get an error saying

Cannot intert null into UserAccountInvoiceTable for field UserID

NOTE: there are a number of USERACCOUNTInvoice objects in a SET in the USERACCOUNT object. So ideally saving parent will cascade down to child changes

Is there a way of mapping the relationship in the XML so Hibernate knows to use the userID of the parent UserAccount object. I don’t think I should set the userID in USERACCOUNTInvoice manually as I think Hibernate will get very confused if I partially set the composite key. And I don’t want to loop through a the child set and save new USERACCOUNTInvoice either. Unless I have too?





 
WHAT is your favorite color? Blue, no yellow, ahhhhhhh! Tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
reply
    Bookmark Topic Watch Topic
  • New Topic