Aggregate descriptors and query keys

Question

We are in the process of migrating from TopLink to EclipseLink.
I have a class Audit that contains the auditing columns that are common to other classes
I have another class Customer that extends the Audit.
Audit is an aggregate descriptor mapped in Customer.
There is an UpdateAllQuery to update a single customer row in the customer.
To update the audit column an addUpdate is added on the field.
query.addUpdate(builder.getField("LAST_UPDT_USER_C"), "Test");
When this query is executed I get an error saying the field is not mapped. But this field is mapped in the aggregate.
This used to work in TopLink.
Any idea why it errors out and how to solve it?
Thanks for the help.
The JavaDoc says that getField work on non mapped field -
Expression org.eclipse.persistence.internal.expressions.DataExpression.getField(String fieldName)
ADVANCED: Return an expression representing a field in a data-level query. This is used internally in EclipseLink, or to construct queries involving fields and/or tables that are not mapped.
ERROR -
Exception Description: Attribute name or expression passed as a first parameter to addUpdate method defines a field from a table that's not mapped to query descriptor.
Attribute name or Expression: [
Field LAST_UPDT_USER_C
Base QUERY OBJECT]
Wrong field: [LAST_UPDT_USER_C]

Answer 1

Hello,
I can't see what has changed in the area that throws the exception, as it seems similar to TopLink 11. Which version of TopLink was this working on, and what version of EclipseLink are you using?
If the field is mapped, why are you not using the attribute mapping via the builder.get("audit").get("auditMappingForTheField") instead of accessing the field directly?
The code itself seems to throw an exception because the table for the field cannot be found in the descriptor's table list You can try to define the table name in the field and see if this helps: builder.getField("Tablename.LAST_UPDT_USER_C"). If this works, please file a bug as it should not be neccessary or the error message needs to be fixed.
Best Regards,
Chris