Same CMR and CMP field in relationship bean

Question

Hi,
     I'm trying to deploy a 1:N realtion, it all works well
but the many part of relation when ever i try to update i get an
error stating. A CMP cum CMR field should not have a setter method
and it should be read only. Is there i'm doign anything wrong?
operation:
Bean A-- Bean B 1-N
update foreign key of Bean B , throws exception stating there should not
be setter.
How to handle a CMP field as CMR.??
Help appreciated,
Thanks,
Venki

Answer 1

Table A
prim key
table B
prim key
Foreign Key
A--- B is 1-- N
when i try to create Table B using
setForeignKey()method i get the following error.
Error :
javax.ejb.EJBException: When a cmp-field and a cmr-field (relationship) are mapp
ed to the same column, the setXXX method for the cmp-field may not be called.
T he cmp-field is read-only.
"Venki" <[email protected]> wrote:
>
Deepak
What if i use the same field for CMP and CMR?
projectId CMP as well as CMR.
I cannot have two methods right?
Venki
Deepak Vohra <[email protected]> wrote:
In the bean class should be a get<Cmp-Field>() method and get<Cmr-Fields>()
method.
public abstract <Cmp-Field-Type> get<Cmp-Field>(){}
public abstract java.util.Collection get<Cmr-Fields>(){}
Venki Seshaadri wrote:
Hi,
I'm trying to deploy a 1:N realtion, it all works well
but the many part of relation when ever i try to update i get an
error stating. A CMP cum CMR field should not have a setter method
and it should be read only. Is there i'm doign anything wrong?
operation:
Bean A-- Bean B 1-N
update foreign key of Bean B , throws exception stating there shouldnot
be setter.
How to handle a CMP field as CMR.??
Help appreciated,
Thanks,
Venki