[eclipselink-users] Cacheing non-root entities

[Andreas Joseph Krogh <andreak@xxxxxxxxxxxx>]

I would like to cache, with @Cacheable, non-root entities.

 

Say you have this model:

@Entity
@Table(name = "parent")
@Inheritance(strategy = InheritanceType.JOINED)
@DiscriminatorColumn(name = "type", discriminatorType = DiscriminatorType.STRING)
@SequenceGenerator(name = "SEQ_STORE", sequenceName = "entity_id_seq", allocationSize = 1)
abstract class AbstractEntityObject {

 

@Entity
@Table(name = "child")
@PrimaryKeyJoinColumn(name = "entity_id")
@DiscriminatorValue("PERSON")@Cacheable // This does not work in Hibernate because we're not the Root-entity 
class Person extends AbstractEntityObject

I want to cache inherited entities of AbstractEntityObject but am unable to do so in Hibernate because Hibernate only allows the root-entity, AbstractEntityObject, to be cached.

 

Is this according to spec or a Hibernate-limitation? Is this possible in EclipseLink? The point is that I don't want to cache *all* inherited entities of AbstractEntityObject.

 

Thanks.

 

--
Andreas Joseph Krogh <andreak@xxxxxxxxxxxx>      mob: +47 909 56 963
Senior Software Developer / CTO - OfficeNet AS - http://www.officenet.no
Public key: http://home.officenet.no/~andreak/public_key.asc