This posting is in reference to this webinar and it's associated Java code regarding use of the Bulk API.
I have been able to successfully use this sample code to "insert" data into my primary custom object "Invoices". This object has an external id defined as "Invoice_Reference_Number__c" (API Name).
The second object is called "Devices" and has a Master/Detail field called "Invoice_Reference_ID__c" which references the "Invoices" object.
I have been able to successfully load data into the Devices object using the Data Loader and by specifying the relationship in the mapper as:
File Column Header: Invoice_Reference_ID__c
I modified the Java code to allow an "upsert" by doing the following:
The problem I'm having, is that when I use this same externalFieldName as displayed in the Data Loader to the Java program, I get the following error:
exceptionMessage='Field name provided, Invoice_Reference_ID__r:Invoice_Reference_Number_c does not match an External ID for Devices_c'
I'm a little confused why the error suggests the external Id is on the "Devices" object.
I've tried a few combinations of this external id to the java app, to no avail. I don't quite understand why the Data Loader works just fine and the Java app doesn't like it.
Any help would be appreciated. Let me know if there is any further information I can provide to help you help me.