RE: [eclipselink-users] BaseEntity

["Mathias Walter" <mathias.walter@xxxxxxx>]

Hi,

I'm doing the same and it works for me. You should not forget to declare
@Table at the derived classes and the BaseEntity should be also listed in
the persistence.xml.

--
Kind regards,
Mathias

> -----Original Message-----
> From: eclipselink-users-bounces@xxxxxxxxxxx 
> [mailto:eclipselink-users-bounces@xxxxxxxxxxx] On Behalf Of Leon Derks
> Sent: Thursday, April 17, 2008 5:43 PM
> To: EclipseLink User Discussions
> Subject: [eclipselink-users] BaseEntity
> 
> 
> Hello
> 
> Is it possible to have one single BaseEntity class that contains a 
> general used id for all other entity classes?
> 
> Like this:
> @MappedSuperclass
> public abstract class BaseEntity {
>    
>     @Id
>     @GeneratedValue(generator="seqGen")
>     @SequenceGenerator(name="seqGen",sequenceName="PLI_SEQ", 
> allocationSize=1)
>     private long id;
> 
>     public long getId() {
>         return id;
>     }
> 
> And that all my entity classes are extending from this BaseEntity. 
> Because then I don't need all kind of similar id variables in 
> my entity 
> classes.
> 
> I tried this, but it results in an error. Because it wants to select 
> from the table BaseEntity and this doesn't exists of course.
> 
> Am I doing something wrong with my jpa mapping?
> 
> greetz,
> Leon
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