Re: [eclipselink-users] JPA @Embeddable, containing foreign key, "must n

[janne postilista <jannepostilistat@xxxxxxxxx>]

Found one similar posting to mine, but no resolution for it:
http://groups.google.com/group/javaee6-codecamp/browse_thread/thread/721889032219d008/e9ed7a37d37b63af?#e9ed7a37d37b63af

The error message seems to imply that Address ends up in the shared
(L2?) cache even when I try to define that L2 should not be used at
all with eclipselink.cache.shared.default=false. Why does this
happen...?

The same @Embeddable class is used in other entities as well, such as
(again, imaginary example)

@Entity
Warehouse {
  @Embedded
  private Address address
}


On Tue, Oct 26, 2010 at 9:18 AM, janne postilista
<jannepostilistat@xxxxxxxxx> wrote:
> Seems this is related to the fact that I have turned eclipselink L2 cache off:
>
> persistence.xml:
>            <property name="eclipselink.cache.shared.default" value="false"/>
>
> when I remove this setting, the mapping works fine.
>
> What do I need to do to make this work when
> eclipselink.cache.shared.default=false (or is it possible)?
>
>
> On Mon, Oct 25, 2010 at 5:48 PM, janne postilista
> <jannepostilistat@xxxxxxxxx> wrote:
>> I'm trying to map a case like
>>
>> @Entity
>> Employer {
>>   @Embedded
>>   private Address address
>> }
>>
>>
>> @Embeddable
>> Address {
>>   @ManyToOne
>>   @JoinColumn(name="fofofof");
>>   private City city
>> }
>>
>> @Entity
>> City
>>
>> (not my actual setup, but the same kind of structure)
>>
>> When I try to use this, I get error
>>
>> Exception [EclipseLink-195] (Eclipse Persistence Services -
>> 2.0.1.v20100213-r6600):
>> org.eclipse.persistence.exceptions.DescriptorException
>> Exception Description: The shared class com.zzz.Address must not
>> reference the isolated class com.zzz.City.
>> Mapping: org.eclipse.persistence.mappings.OneToOneMapping[city]
>> Descriptor: RelationalDescriptor(com.zzz.Address --> [DatabaseTable(EMPLOYER)])
>>
>> Is there anything I can do to make my Embeddable object have link to
>> another table?
>>
>