• 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
  • Tim Cooke
  • paul wheaton
  • Ron McLeod
  • Jeanne Boyarsky
Sheriffs:
  • Paul Clapham
Saloon Keepers:
  • Tim Holloway
  • Roland Mueller
Bartenders:

Deleting Entity in ManyToOne relationship - Make foreign key as null

 
Ranch Hand
Posts: 69
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
In the below example, i am having ManyToOne relationship from Address to my parent entity Person. Now i am required to set the corresponding foreign key reference in my Person table as null whenever i delete an entry from the Address table.

I am using JPA 2.0 EntityManager.delete(addressEntity) method to delete the Address entity. But i am stuck up with the following exception. Neither my Address entity nor my reference key changed as null in Person table.


Please help me in solving the above said problem.

javax.persistence.RollbackException: Error while committing the transaction
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:93)
....
Caused by: javax.persistence.EntityNotFoundException: deleted entity passed to persist: [Person#<null>]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1197)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1148)
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:81)
... 3 more



Thanks,
Akhil
reply
    Bookmark Topic Watch Topic
  • New Topic