Problems with toplink in a ROLAP application - please , I need help

Question

Hello,
I am not too much experieced with toplink but I want use it for building a ROLAP (relational OLAP) client (something like Discoverer Plus) . Because of an database bug , Oracle Warehouse Builder can not generate materialized views creation scripts that help in agregation . This bug wiil be eliminated in 11gR2 database . OWB generate these materialized views creation scripts in a clob column of database but these scripts is not valid. These scripts can be extracts from database , corect and run .
This ROLAP-enabled schema is a star schema (a fact table in center sourounded by dimensions tables , with FK in these tables) generated by OWB . It does not have a PK associated with fact table.
Because of this fact , when I try to generate a status report of map associttiaded with tables from schema , I receive this
     Descriptor SalesCube -> No primary keys specified in SSB.SALES_CUBE table.
Discoverer Plus does not complain about this PK missing, but it knows fact tables does not have PK .
Please give an ideea,
TIA.
Aurel

Answer 1

I am using jdeveloper 10.1.3.1 and I get the following error :
Exception [TOPLINK-6044] (Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)): oracle.toplink.exceptions.QueryException Exception Description: The primary key read from the row [DatabaseRecord( ORG_DIM_V.FARMACIE_NUME_FARMACIE => Titan 1 => 357142.3)] during the execution of the query was detected to be null. Primary keys must not contain null. Query: ReadAllQuery(app5.model.OrgDimV); nested exception is: Exception [TOPLINK-6044] (Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)): oracle.toplink.exceptions.QueryException Exception Description: The primary key read from the row [DatabaseRecord( ORG_DIM_V.FARMACIE_NUME_FARMACIE => Titan 1 => 357142.3)] during the execution of the query was detected to be null. Primary keys must not contain null. Query: ReadAllQuery(app5.model.OrgDimV)
and ,of course, I have a primary key , but on the column ORG_DIM_V.DIMENSION_KEY .
ORG_DIM_V is o view on the table ORG_DIM and I build PK with this two statements:
ALTER VIEW SSB.ORG_DIM_V ADD CONSTRAINT org_dim_v_pk PRIMARY KEY (DIMENSION_KEY) disable novalidate
ALTER VIEW SSB.ORG_DIM_V MODIFY CONSTRAINT org_dim_v_pk RELY
What's happining?
Many thanks,
Aurel