Re: Oracle Sequences and CMP
I'm trying to use CMP for beans that map to tables in which the primary key is an integer that comes from an Oracle SEQUENCE. How do I get the container to get the next number from the appropriate SEQUENCE on a create? You could build a Session Bean that will take care of connecting directly to the database and get the "next number" from the given sequence. If you want, I'll suggest you to take a look to a very interesting thread present on www.theserverside.com, regarding a session bean generating unique values for PrimaryKeys. It's worth a read. Hope this helps... Best regards, Alex Cos'e' il genio. E' fantasia intuizione, colpo d'occhio e velocita' d'esecuzione. (Amici Miei) --- Alessandro A. 'Kazuma' Garbagnati http://www.kazuma.net/ ICQ UIN: 1600386 Mountain View, CA, 94043 - USA
RE: Oracle Sequences and CMP
Quite simply, you can't ;) EJBs must generate their own primary keys. The only way you can do this is have another bean that runs a custom SQL query to get a new ID from the sequence and then use that. But this is very ugly, not DB independent and involves coding SQL in your bean. I don't recommend it at all. -mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dan Cramer Sent: Sunday, February 18, 2001 5:59 PM To: Orion-Interest Subject: Oracle Sequences and CMP I'm trying to use CMP for beans that map to tables in which the primary key is an integer that comes from an Oracle SEQUENCE. How do I get the container to get the next number from the appropriate SEQUENCE on a create? Help is appreciated, Dan Cramer Chief Architect Dynamic Resolve, LLC Internet Solutions Consulting
