No identifier specified for entity

bjornbjorn · **Joined:** Tue May 02, 2006 7:51 am **Posts:** 3

Yes, I've searched for this error before but not found anything I could relate to.

I get the exception:

Quote:

org.hibernate.AnnotationException: No identifier specified for entity

The class is auto-generated by NetBeans:

Code:

@Entity
@Table(name = "PDFINSTALLEDFONTS")
public class Pdfinstalledfonts {

    @Id
    @Column(nullable = false)
    private BigDecimal id;
(..)

I read in the Hibernate FAQ that the reason for this error was that the unique id field wasn't annotated with @Id .. but it is in my case.

Anyone know what else might be the reason?

bjornbjorn · **Joined:** Tue May 02, 2006 7:51 am **Posts:** 3

*bump*

anyone?

alesj · **Posted:** Thu May 04, 2006 3:55 am

Hmmm .... all of my entities have an id generator specified.
How do you generate your id's?

If by autoincrement - try adding this annotation:

Code:

@GeneratedValue

Else update Hibernate stuff to the latest and debug AnnotationConfiguration buildup.

alesj · **Posted:** Thu May 04, 2006 3:57 am

Hmmm .. why a BigDecimal id field?

What about plain Long or Integer?

bjornbjorn · **Joined:** Tue May 02, 2006 7:51 am **Posts:** 3

thanks for the input alesj :) .. I've tried with Long and Integer, and also added @GenerationValue (it's no longer called @GeneratedValue for some reason, spent a couple of hours on that.)

Quote:

Else update Hibernate stuff to the latest and debug AnnotationConfiguration buildup.

hmm, this is a bit over my head - "debug AnnotationConfiguration buildup"?

I'm using JBoss 4.0.4 CR2, but I'm unsure of what hibernat version it includes..

emmanuel · **Posted:** Thu May 25, 2006 2:20 pm

Show the full object, there is no reason why it should fail