Use a reference-descriptor to make 1:1 mappings. If you are using 1:N mappings, use a collection-descriptor in the 1 side, and a reference-descriptor in the N side.
Best regards, Edson Richter ----- Original Message ----- From: McCaffrey, John G. To: 'OJB Users List' Sent: Thursday, March 18, 2004 4:33 PM Subject: 1 to 1 mapping I am trying to join two tables A and B table A has three primary keys Main_ID Node_ID Process_Date table B has two primary keys Node_ID Process_Date my mapping has the Table A object containing a collection of B obj I want to join the collection using the Node_ID, because it is the only thing they can be joined on when I do the mapping <collection-descriptor name="aObj" element-class-ref="x.x.x.AObj" proxy="false" auto-retrieve="true" > <inverse-foreignkey field-ref="node_ID"/> </collection-descriptor> it complains about an arrayIndexOutOfBounds but it works when the only primary key is Node_ID i don't get it --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.624 / Virus Database: 401 - Release Date: 15/3/2004
