File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
The moose likes EJB and other Java EE Technologies and the fly likes one to many relations using ejb 2.x ? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » EJB and other Java EE Technologies
Bookmark "one to many relations using ejb 2.x ?" Watch "one to many relations using ejb 2.x ?" New topic
Author

one to many relations using ejb 2.x ?

U Kvistborg
Greenhorn

Joined: Oct 14, 2002
Posts: 29
Hi

I have a few tables, an example could be like I have a person that have many cars, a person table and a car table. Where the person have a pk as some id, and the cars have a fk to the persons pk.
Now if I wanna get the person bean I want the cars to be on the bean that the person owns. So I could say person.getCars() and get the collection with the Cars object belonning to this person.

There is ofcourse one solution and that is to have a domain object representing the person and for each person add the car objects. But is there any easier way to do this, e.g. via the eql. ? So I directly on my person bean have access to the cars ?

Brgds


SCJP 1.4/1.5, SCWCD 1.4, SCBCD 1.3
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: one to many relations using ejb 2.x ?
 
Similar Threads
Hibernate: Can someone verify my mapping configuration?
0 x N in hibernate (null values in a FK field)
EJB Question. Add a new column to Many-to-many relation generated table.
db desgin question: how to improve the relationship in this schema
Hibernate Many-to-many using link table