[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-4201) Discriminator of RootClass is not exported.

[Dmitry Geraskov (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBIDE-4201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12463743#action_12463743 ] 

Dmitry Geraskov commented on JBIDE-4201:
----------------------------------------

I mean that if hibernate developer uses single-table-per-class-hierarchy mapping strategy and core mapping(by hbm files) it is required to have <discriminator> element in hierarchy-root class mapping(to build session factory). But if he uses annotation-style mapping he do not need to add @Discriminator annotation for hierarchy-root entity. I went into built session factory and found that in this situation hibernate expected to see "DTYPE" column in the table and going to use discriminator-values of "string" type.

> Discriminator of RootClass is not exported.
> -------------------------------------------
>
>                 Key: JBIDE-4201
>                 URL: https://jira.jboss.org/jira/browse/JBIDE-4201
>             Project: Tools (JBoss Tools)
>          Issue Type: Sub-task
>          Components: Hibernate
>    Affects Versions: 3.0.0.GA
>            Reporter: Dmitry Geraskov
>            Assignee: Max Rydahl Andersen
>             Fix For: 3.1.0.M1
>
>         Attachments: patch.txt
>
>
> RootClass.discriminator value used to determine discriminator type and columns when table-pre-type-hierarchy used in mapping, but element discriminator never exported and sessionFactory can't be built for such configuration:
> org.hibernate.MappingException: No discriminator found for com.jboss.dvd.seam.Admin. Discriminator is needed when 'single-table-per-hierarchy' is used and a class has subclasses
> org.hibernate.MappingException: No discriminator found for com.jboss.dvd.seam.Admin. Discriminator is needed when 'single-table-per-hierarchy' is used and a class has subclasses
> at org.hibernate.mapping.SingleTableSubclass.validate(SingleTableSubclass.java:41)
> at org.hibernate.cfg.Configuration.validate(Configuration.java:1102)
> at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1287)
> at org.hibernate.console.ConsoleConfiguration$3.execute(ConsoleConfiguration.java:502)
> at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:64)
> at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:95)
> at org.hibernate.console.ConsoleConfiguration.buildSessionFactory(ConsoleConfiguration.java:497)
> ...

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira