@embededId containing a foreign key of an entity with inheritance

Hibernate ORM
1

I have an entity named Attendance that has an and emebedid AttendacneId that has two columns lectureId (string) and studenId(UUID). The attendance entity also has other properties as well containing a ManyToOne relationship with student and lecture enity using the @MapsId on them. The student extends user entity where the id resides. now when I try to save anything I get this error.

https://stackoverflow.com/questions/54778309/hibernate-embededid-containing-a-foreign-key-of-an-entity-with-inheritance -> it has a little bit more information.

https://github.com/sukhvir41/hibernate-test-case-templates my entities are in hibernate-5

java.util.NoSuchElementException
at java.util.ArrayList$Itr.next(ArrayList.java:860)
at org.hibernate.cfg.annotations.TableBinder.linkJoinColumnWithValueOverridingNameIfImplicit(TableBinder.java:724)
at org.hibernate.cfg.PkDrivenByDefaultMapsIdSecondPass.doSecondPass(PkDrivenByDefaultMapsIdSecondPass.java:37)
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1684)
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1641)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:286)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:473)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:84)
at utility.Utils.<clinit>(Utils.java:60)
at utility.Testing.main(Testing.java:21)
2

I already told you on Stack Overflow what you needed to do.

So, I didn’t say you should remove any dependency. I said you should remove the unneeded entities and provide the missing dependencies.

When someone asks you for a replicating test case, you should provide one that actually works. Just run a mvn clean test on the project, and you’ll get something like this:

[ERROR] /d:/Vlad/Work/HHH/hibernate-orm-5/src/test/java/org/hibernate/bugs/UserType.java:[8,14] package lombok does not exist
[ERROR] /d:/Vlad/Work/HHH/hibernate-orm-5/src/test/java/org/hibernate/bugs/User.java:[24,17] duplicate class: entities.User
[ERROR] /d:/Vlad/Work/HHH/hibernate-orm-5/src/test/java/org/hibernate/bugs/ORMStandaloneTestCase.java:[36,36] cannot access org.hibernate.bugs.User

When you manage to make it work, I will take a look at it.

3

The only actual dependency I had was lombok other than that there calls to my class only so I just removed that. I have tested it and was able to reproduce it. So when you get the time have a look at it. Thank you.


the classes are in hibernate-orm-5

4

The Student does not have an @Id so this is not a valid mapping.

You need to read the Hibernate User Guide for more details about how you should map a JPA entity.

5

The student is getting it’s Id from the user class as it extends it. So how will add @id annotation to the student class as each class can only have one and the student is getting it through inheritance

6

It might be a bug. You need to open a Jira issue and attach your test case. Now, if this is urgent for you, you should try and figure out a fix for it. When you are done with the fix proposal, open a new Pull Request and we will investigate it.

Looking forward to getting your fix.

7

Any specific steps or documentation to create a jira ticket.

8

Use Jira and attach your test case.

9

Hello @vlad

I’m having the same issue. Any news on this?

Thanks

10

Since I’m not working for Red Hat, I have no idea what is the status of that issue.

You should try fixing it and sending a Pull Request. Usually, Pull Requests have a higher priority than any of the thousand of issues that are in Open state.