Yup. I have all 3 classes in my hibernate.cfg.xml: <mapping class="com.mycompany.app.model.Person"/> <mapping class="com.mycompany.app.model.Request"/> <mapping class="com.mycompany.app.model.PersonRequest"/>
I also tried deleting PersonRequest from the hibernate.cfg.xml because I wasn't sure if it needed to be defined or not. But I got a different error so, I guess it does. I'll keep trying ... Thanks! Bob Aled Rhys Jones wrote: > > Yeah, you have to have a model for PersonRequest since you need to know > the > date object it holds. Any other method and it's not many to many. > > Regarding the error, have you defined all the models in the hibernate > configuration file (hibernate.cfg.xml)? > > > -----Original Message----- > From: syg6 [mailto:[EMAIL PROTECTED] > Sent: 09 July 2007 14:08 > To: [email protected] > Subject: [appfuse-user] RE: many-to-many with attribute ... again > > > Hmm ... well, ideally I was hoping to NOT have to create any extra model > classes. It seems I have to at least create one, right? The PersonRequest > class. Well, at least it seems I don't have to create the PersonRequestPK > class! > > Anyway, I tried your example and when I run mvn test-compile > hibernate3:hbm2ddl I get an error: > > AnnotationException: @OneToOne or @ManyToOne on > com.mycompany.app.model.PersonRequest.person references an unknown entity: > com.mycompany.app.model.Person > > Both Person and Request exist ... Both have the following annotations: > > private Long id; > > @Id @GeneratedValue(strategy = GenerationType.AUTO) > public Long getId() { > return id; > } > > I am not sure what the problem is ... but then I am not an Annotations or > Hibernate expert. I'll keep trying. And further help much appreciated! > > Cheers, > Bob > > > > > Aled Rhys Jones wrote: >> >> Hi Bob >> >> Ok then, Yes. :-) >> >> http://www.hibernate.org/hib_docs/annotations/reference/en/html_single/ >> >> I've got the same scenario in my app. >> >> >> >> Example Request model: >> >> @Entity >> >> public class Request { >> >> >> >> private List<PersonRequest> personRequests; >> >> ...... >> >> >> >> @OneToMany(mappedBy="request") >> >> @OrderBy("date") >> >> public List<PersonRequest> getPersonRequests () { >> >> return personRequests; >> >> } >> >> ..... >> >> } >> >> >> >> Example Person model: >> >> @Entity >> >> public class Person { >> >> private List<PersonRequest> personRequests; >> >> ...... >> >> >> >> @OneToMany(mappedBy="person") >> >> @OrderBy("date") >> >> public List<PersonRequest> getPersonRequests () { >> >> return personRequests; >> >> } >> >> ..... >> >> } >> >> >> >> Example PersonRequest model: >> >> @Entity >> >> public class PersonRequest: >> >> private Person person; >> >> private Request request; >> >> ..... >> >> @ManyToOne >> >> @JoinColumn(name="person_id") >> >> public Person getPerson(){ >> >> return person; >> >> } >> >> >> >> @ManyToOne >> >> @JoinColumn(name="request_id") >> >> public Request getRequest(){ >> >> return request; >> >> } >> >> ....... >> >> } >> >> >> >> You may want to add details about cascading and the like. >> >> You'll obviously need to put annotations on your getId method's so >> hibernate >> know to use the id fields as primary keys. >> >> Just add in the other fields such as description as normal. >> >> Hope this helps. >> >> >> >> Cheers >> >> Aled >> >> >> >> >> >> -----Original Message----- >> From: syg6 [mailto:[EMAIL PROTECTED] >> Sent: 09 July 2007 12:18 >> To: [email protected] >> Subject: [appfuse-user] many-to-many with attribute ... again >> >> >> >> >> >> Hello all. >> >> >> >> I had this problem about a year ago and just couldn't get Hibernate and >> >> XDoclet to play nice. Basically I have this: >> >> >> >> Request >> >> id >> >> description >> >> >> >> Person >> >> id >> >> name >> >> >> >> PersonRequest >> >> idPerson >> >> idRequest >> >> date >> >> >> >> And I would like to know how to do with Annotations. The last time I >> wound >> >> up hand-hacking the hibernate mapping files and creating two intermediate >> >> 'composite' classes -- let's call them PersonRequest and PersonRequestPK >> -- >> >> and having to do all of the DAO by hand. >> >> >> >> Is there any way to do this auto-magically with Annotations? >> >> >> >> Please say yes ... >> >> >> >> Cheers, >> >> Bob >> >> -- >> >> View this message in context: >> > http://www.nabble.com/many-to-many-with-attribute-...-again-tf4048626s2369.h >> tml#a11499869 >> >> Sent from the AppFuse - User mailing list archive at Nabble.com. >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >> > > -- > View this message in context: > http://www.nabble.com/many-to-many-with-attribute-...-again-tf4048626s2369.h > tml#a11501267 > Sent from the AppFuse - User mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/many-to-many-with-attribute-...-again-tf4048626s2369.html#a11501842 Sent from the AppFuse - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
