I guess it depends a lot on how the CMP engine manages relationships; You could just spawn a lot of app server instances and deploy your app in each. It's the most dirty way to go about it, but probably the quickest.
Of course with a lot of app servers this isn't feasible unless you've got a Cray computer. It's likely to work with 100% Java servers(Orion, JBoss, Pramati, Weblogic). My 2c, Juan Pablo Lorandi Chief Software Architect Code Foundry Ltd. [EMAIL PROTECTED] Barberstown, Straffan, Co. Kildare, Ireland. Tel: +353-1-6012050 Fax: +353-1-6012051 Mobile: +353-86-2157900 www.codefoundry.com > -----Original Message----- > From: A mailing list for Enterprise JavaBeans development > [mailto:[EMAIL PROTECTED] On Behalf Of Alex Paransky > Sent: Tuesday, August 05, 2003 5:20 AM > To: [EMAIL PROTECTED] > Subject: Re: Ejb Deployment with different datasource > > > This is the only way that I know of doing this in EJB. There > are some negative implications with this: > > 1. You really have to deploy another bean with a different > JNDI name for each datasource 2. Your code, in your client > application will have to resolve/use different EJB beans. 3. > If you are using Container Managed Relationships, they would > have to be re-stated for each bean you deploy > a. Any bean which relates to this bean, would have to > have different relationships specified > b. If you relating from this bean to other beans, you > will need to restate relationships for each bean deployed > with a different data source > > If you are using BMP, then you could encode the datasource in > the key. Then using the key, you can get the proper resource > and read from the right database. Implementing finders, > however, would be interesting, since you would need to query > all the datasources. This might be what you want, or not. > > In general, I don't believe there is a nice way to deal with > this issue in J2EE. > > Perhaps you could re-think this requirement and find a > different method of implementing this task. > > Good luck. > > -- > -AP_ > http://www.myprofiles.com/member/profile/apara_personal > http://www.myprofiles.com/member/profile/apara_business > > > Vikram Naik wrote: > > > Hello People, > > > > We have a requirement for deploying same ejb multiple > times with > > different datasources. I think we can achieve this by deploying the > > same bean with different datasources with different JNDI > names. Please > > suggest your views or implications for doing so . > > > > Regards, > > Vikram Naik > > > ====================================================================== > > ===== > > To unsubscribe, send email to [EMAIL PROTECTED] and > include in the > > body of the message "signoff EJB-INTEREST". For general help, send > > email to [EMAIL PROTECTED] and include in the body of > the message > > "help". > > > > ============================================================== > ============= > To unsubscribe, send email to [EMAIL PROTECTED] and > include in the body of the message "signoff EJB-INTEREST". > For general help, send email to [EMAIL PROTECTED] and > include in the body of the message "help". > =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
