I have the same problem, and try to use @PrimaryKeyJoinColumn but it does not
work. I can not generate a foreign key in a table, it can cause errors in our
db. Help about that???
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problem solved . It was a oneToOne relation where the id was shared by two
entities and i was using it as a foreign key.
Thanks Felix!!
this error was in my work another one(in the other topic) about composite keys
is for my final university studies project. i gonna change @idClass annotation
Two questions:
a.) Ist it really the same problem?
b.) Ist it the only @OneToOne annotation you have?
Regards
Felix
P.S.: I think you should specify optional false on the user details side.
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I tried what you say but i think your annotation is deprecated and is indicated
for class- subclass relations with joined mapping strategy.
In fact as i told you i could manage what you say with optional=false in the
OneToOne annotation, but my problem still continue.
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i gonna do what you say but if i write optional=false in OneToOne annotation
always a user details will be related with a user.
anyway, thank you very much. I will tell you what happens!!
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Well, either it is a primary key then the constraint is that its unique and not
null. Or it is a foreign key so that it is either null or refers to a row in
the related table.
What is Hibernate supposed to do, if you set the user details to null? Then you
would also assign null to the primary k
I can´t see the problem you told me. What´s the problem with the column being
primary and foreign key? I did it more times without problems.
the bug is killing me!! it was an application in ejb 2.1 and i migrated it to
ejb 3.0
thanks Felix!!! Congratulations for your spanish!!
View the origi
anonymous wrote :
| I've studied one to one relations and i think the error is not because of
that.
|
I diagree. Look at your annotations:
@Id
@OneToOne
@JoinColumn(name="idUsuario")
public UsuarioEJB getIdUsuario() {
return this.idusuario;
}
This means that the column is primary key an
I've studied one to one relations and i think the error is not because of that.
This is an example in my model.
@Entity
@Table(name="usuarioDetalles")
public class UsuarioDetallesEJB {
private UsuarioEJB idusuario;
private String nombre;
private String apellidos;
anonymous wrote :
| As i told you ...
|
Huh? You didn't tell me anything... All you did was posting your stack trace.
Actually you still haven't told me still.
|
org.hibernate.cfg.OneToOneSecondPass.doSecondPass(OneToOneSecondPass.java:196)
|
Your error is related to an @OneToOne a
As i told you i found my error in classes with the @stateless. This is what i
do at one of this classes.
package com.satdatatelecom.satdataweb.model.empresafachada.ejb;
import java.rmi.RemoteException;
import java.util.Collection;
import javax.ejb.Stateless;
import javax.persistence.EntityManag
My crystalball tells me... nothing.
Without posting your code nobody will able to help you.
Regards
Felix
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I continue with the error. I was looking carefully the code, and the error
dependencies are in classes with the stateless annotation.
Some ideas?
Thanks, and sorry about my english!!!
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sorry i forget the error. Thanks
WARN [ServiceController] Problem starting service
persistence.units:ear=SatDataWeb101.ear,jar=SatDataWeb.jar,unitName=SatdataWeb
java.lang.NullPointerException
at org.hibernate.util.StringHelper.qualify(StringHelper.java:264)
at
org.hibernate.cfg
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