Are you mixing strategies? Drop the trigger in case 2, does it work?
-----Original Message----- From: O'Reilly John [mailto:[EMAIL PROTECTED]] Sent: Friday, February 21, 2003 10:23 AM To: '[EMAIL PROTECTED]' Subject: Oracle sequences/triggers Last November a message was posted regarding the use of Oracle Sequences. I was wondering if somone was able to get this working. http://archives.apache.org/eyebrowse/ReadMsg?[EMAIL PROTECTED] e.org&msgId=528894 As posted, I have defined a trigger based oracle sequence such that the DB will generate a new primary key when inserting a record. I've tried two approaches with OJB. 1. Don't define a sequence and define primary key field as follows: <field-descriptor name="label_Id" column="LABEL_ID" jdbc-type="INTEGER" primarykey="true"/> In this case the following sql is generated when I create an object. The primary key gets created by the DB. However, OJB doesn't know what this is and therefore cannot create foreign keys correctly. SELECT LABEL_ID,RECORD_COMPANY_ID,LABEL_NAME FROM labels WHERE LABEL_ID = '0' INSERT INTO labels (LABEL_ID,LABEL_NAME,RECORD_COMPANY_ID) VALUES ( '0', 'some label', '11' ) 2. Define a sequence manager <sequence-manager className="org.apache.ojb.broker.util.sequence.SequenceManagerNextValImpl"/> and define primary key as follows: <field-descriptor name="label_Id" column="LABEL_ID" jdbc-type="INTEGER" primarykey="true" autoincrement="true" sequence-name="label_id_seq" /> In this case the following sql is generated when I create an object. select label_id_seq.nextval from dual SELECT LABEL_ID,RECORD_COMPANY_ID,LABEL_NAME FROM labels WHERE LABEL_ID = '664' INSERT INTO labels (LABEL_ID,LABEL_NAME,RECORD_COMPANY_ID) VALUES ( '664', 'some label', '11' ) The problem is that the id created in the DB is actaully 665 because of the trigger on the insert. Again, the foreign key would be incorrect. Are there any other solutions? We are in the processing of evaluating a move from Castor to OJB. In castor this is handled using the following sql: {call INSERT INTO "SALES" ("SALES_YEAR","SALES_QUARTER","RECORD_COMPANY_ID") VALUES ('1999','1','') RETURNING "SALES_ID" INTO null} BTW, some of the posts refer to an Oracle specific sequencemanager - however, I can't find this in the latest distribution (0.9.9). Regards, John O'Reilly ************************************************************************ This e-mail and any files transmitted with it are confidential and may be privileged and are intended solely for the individual named/ for the use of the individual or entity to whom they are addressed.If you are not the intended addressee, you should not disseminate, distribute or copy this e-mail.Please notify the sender immediately if you have received this e-mail by mistake and delete this e-mail from your system.If you are not the intended recipient, you are notified that reviewing, disclosing, copying, distributing or taking any action in reliance on the contents of this e-mail is strictly prohibited.Please note that any views or opinions expressed in this e-mail are solely those of the author and do not necessarily represent those of Traventec Limited.E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, or arrive late or incomplete.Traventec Limited therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission.The recipient should check this e-mail and any attachments for the presence of viruses.This e-mail has been swept for computer viruses however Traventec Limited accepts no liability for any damage caused by any virus transmitted by this e-mail. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
