Win a copy of JDBC Workbook this week in the JDBC and Relational Databases forum
or A Day in Code in the A Day in Code 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 all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Jeanne Boyarsky
  • Junilu Lacar
  • Henry Wong
Sheriffs:
  • Ron McLeod
  • Devaka Cooray
  • Tim Cooke
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Frits Walraven
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Piet Souris
  • salvin francis
  • fred rosenberger

Could not generate OneToMany records using @ElementCollection in JPA 2

 
Ranch Hand
Posts: 235
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Dear JPA Specialists,

I need your advice on getting a OneToMany (Employee to Photo) relational mapping using @ElementCollection & @CollectionTable in JPA 2.0. Below is a hypothetical code snippet that I am trying to get all the Photo records persisted without success:



However, only the last photo (afterWorkPhoto) object has been persisted to the Employee entity instead of all 3 photos. I also want the option of going back to add more new (unique) photos for the same employee in the future.

I am running Eclipselink 2.4.1 (JPA 2.0), Java 7 on Windows XP & 7.

Your advice would be much appreciated.

Thanks in advance,

Jack
 
Ranch Hand
Posts: 553
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
In your code you call createEmployee with an Employee but your code takes String, String, ..., so what you posted is not the real code.
Your createEmployee seems to be creating a new Employee, so make sure you are adding the photos to that employee.

Also, your addPhotos method first does a contains, ensure that your equals and hashCode methods are correct.
 
The moustache of a titan! The ad of a flea:
Devious Experiments for a Truly Passive Greenhouse!
https://www.kickstarter.com/projects/paulwheaton/greenhouse-1
    Bookmark Topic Watch Topic
  • New Topic