I've successfully migrated a self-made repository framework
implementation to Deltaspike Data and so far it's a breeze!
The only thing I'm wondering is how to build custom abstract
repositories with convenience methods all concrete repositories should
inherit.
The scenario is the following:
* All entities extend an AbstractEntity (with fields like 'uuid',
'lastUpdated' and the 'id')
* I want to introduce an abstract repository (AbstractRepository)
implementation with methods like "findByUuid", "getLastUpdated", ...
* All concrete repositories are abstract classes and should inherit from
AbstractRepository
My naive (and non-working) approach was to write the following 4 classes:
Entites:
------------
@MappedSuperclass
public class AbstractEntity implements Serializable { ... }
@Entity
public class User extends AbstractEntity { ... }
Repositories:
--------------------
public abstract class AbstractRepository<T extends AbstractEntity>
extends AbstractEntityRepository<T, Long> {
}
@Repository
public abstract class UserRepository extends AbstractRepository<User> {
}
When I try to deploy that; I'm getting the following exception:
org.apache.deltaspike.data.impl.RepositoryDefinitionException:
Repository creation for class class
com.acme.repository.AbstractRepository failed. Is it associated with a
valid Entity?
at
org.apache.deltaspike.data.impl.meta.RepositoryComponents.extractEntityMetaData(RepositoryComponents.java:118)
at
org.apache.deltaspike.data.impl.meta.RepositoryComponents.add(RepositoryComponents.java:56)
at
org.apache.deltaspike.data.impl.RepositoryExtension.processAnnotatedType(RepositoryExtension.java:90)
---- SNIP ----
Is there something obvious I'm doing wrong? I'm glad for any help!
All the best,
Dominik
