Hi,
I have quite an interesting issue (which at this point has me stumped).
I have a class Service that has a one-to-many to Topic (which is a base clase).
Topic is extended into three other (CMSTopic, DFTopic and MMTopic).
Service
| @Entity
| @Name("service")
| @Table(name = "service")
| public class Service implements Serializable {
| private Map<Integer,Topic> topics = new HashMap<Integer,Topic>();
|
| @OneToMany(mappedBy = "service")
| @MapKey(name="id")
| public Map<Integer,Topic> getTopics() {
| return topics;
| }
| }
Topic
@Entity
| @Name("topic")
| @Table(name = "topic")
| @Inheritance(strategy = InheritanceType.SINGLE_TABLE)
| @DiscriminatorColumn(name = "topic_type", discriminatorType =
DiscriminatorType.STRING)
|
| public class Topic implements Serializable {
| private Service service;
| @ManyToOne(fetch=FetchType.LAZY)
| public Service getService() {
| return service;
| }
| }
|
|
and the extended classes e.g. CMSTopic
| @Entity
| @Name("cmsTopic")
| @Inheritance(strategy = InheritanceType.SINGLE_TABLE)
| @DiscriminatorColumn(discriminatorType = DiscriminatorType.STRING)
| @DiscriminatorValue("CMS")
| public class CMSTopic extends Topic {
| }
When I do a service.getTopics().values() the correct subclasses of Topic is
returned. But for some reason the instance type is weird.. I get the following
when doing an getClass() on each element in the returned map:
class csir.structure.par.DFTopic
class csir.structure.par.CMSTopic
class csir.structure.par.Topic_$$_javassist_227
class csir.structure.par.CMSTopic
Does anybody have an idea of why only one of these would be
Topic_$$_javassist_227 while the others are the correct type ?
Thanks
Louis
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