openjpa-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Catalina Wei (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1696) Type discriminator for polymorphic queries limited to Single Table inheritance
Date Sat, 12 Jun 2010 02:29:12 GMT
Type discriminator for polymorphic queries limited to Single Table inheritance
------------------------------------------------------------------------------

                 Key: OPENJPA-1696
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1696
             Project: OpenJPA
          Issue Type: Bug
          Components: query
    Affects Versions: 2.0.0
            Reporter: Catalina Wei
            Assignee: Catalina Wei


JPA2.0 spec defines TYPE discriminator which can be used in JPQL query to return polymorphic
query results. The spec is unclear that the TYPE discriminator is for Single table inheritance
or it can be used for Table per class or inheritance type Joined or not.
The initial implementation in OpenJPA has limited it for Single Table inheritance, but it
does not block the usage for the other 2 types of inheritance.
This resulting incorrect SQL generated and SQLExceptions.


-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message