BPEL 10.1.2 Integration w/ Oracle E-Business Suite Database Sequences

Question

All,
I have read the previous posts on database sequences, but I am still missing something. I am attempting to insert into a database column using a database sequence. In my toplink_mappings.xml (under Integration content), I make the changes as suggested in previous posts ( I have read most all of them on this subject) to manually insert two lines under the primary key as follows:
<sequence-number-field>AP.AP_INVOICES_INTERFACE.INVOICE_ID</sequence-number-field>
<sequence-number-name>AP.AP_INVOICES_INTERFACE_S</sequence-number-name>
When I then attempt to re-deploy the process without going through the partner link, I get the ORA-00942: table or view does not exist. I am guessing this is related to the two lines above that were inserted manually as instructed below. However, when I attempt to go back through the partner link to validate the changes the two manual lines are wiped out and I then get ORA-01400: cannot insert NULL into "AP"."AP_INVOICES_INTERFACE"."INVOICE_ID"). Furthermore, I have gone into Applications Sources ->TopLink->TopLink Mappings Database Info Sequencing Section. I toggled between "Use Default Sequence Table"/"Use Native Sequencing". I think I need Use Native Sequencing do to my integration with Oracle Apps, but I am not sure (PreAllocation set to 1 per Apps).
Also, I have read the references from previous post to the BPEL Developers guide and reviewed the "Changes Through TopLink Mapping Workbench". However the section on No Primary Key Exception does not address my issue because it does not address automatic sequence generation for primary keys.
Any help with regard to this issue is very much appreciated. I too am trying to perform a BPEL and OEBS 10.5.9/9i database integration “proof of concept” and would be interested in discussing what I am working on with others in a similar position. Thanks.
Don

Answer 1

Hi Don,
I have seen this before internally:
"I've selected "Use Native Sequencing" in the Toplink Mappings and used the DB Adapter wizard to regenerate the toplink_mappings.xml, but the BPEL process manager still wants to access a table called SEQUENCE."
The solution is to change your oc4j-ra.xml to set useNativeSequencing="true". Otherwise the adapter will think AP.AP_INVOICES_INTERFACE_S is a database table designed to store the next primary keys rather than a sequence. That may explain the table not found exception.
For next release we will at least ship a sample on how to auto-assign primary keys on insert. We do have a feature request to incorporate this into the wizard to make it more painless.
Also to prevent your additions to toplink_mappings.xml from being overwritten, you can configure sequencing inside the TopLink Mapping Workbench Project inside Jdev.
Go
Application Sources > TopLink > TopLink Mappings.
Then in structure pane click on the ApInvoicesInterface descriptor and check "Use Sequencing" and set the SequenceName to "AP.AP_INVOICES_INTERFACE_S".
Thanks
Steve