Hi,
following domain model:
@MappedSuperclass
public class BasicMetaData {
@Id
@Column(name = "oid")
private long oid;
...
}
@Entity
@VersionColumn(name = "jdoversion")
@Table(name = "foo1")
public class MetaData1 extends BasicMetaData {
}
@Entity
@VersionColumn(name = "jdoversion")
@Table(name = "foo2")
public class MetaData2 extends BasicMetaData {
}
Now i have a oid value of "1" in the DB for MetaData1. When i try to
use also "1" as oid for MetaData2 and try to persist, i am getting an
exception because Entity MetaData1 is somehow in the same "ID space".
So is it correct that one cant define an ID field in a mapped
Superclass when the IDs have their own "counter".
In this example, OpenJPA even thinks that MetaData2 is a detached
instance of type MetaData1 because it looks in its cache and sees an
OID with value 1 but for complete different entity.
To make it short? I must define the OID field on the subclasses right?
Marc
