Hello David, Wednesday, August 21, 2002, 9:41:44 PM, you wrote: DJ> Well, the persistent storage doesn't have to be a relational database: for DJ> instance it could be an object database such as Versant. It also might be DJ> something like SAP, or an xml database. So relationships can't really be DJ> specified by the spec, and you can't rely on any particular representation DJ> if you want your app to be completely portable.
Yes, you are right about completly portable. I want this but I know it is difficult so I will be happy if I can port it on JBoss and some popular AppServers (WebLogic and WS) and some databases (Firebird and Oracle). DJ> david jencks DJ> On 2002.08.21 20:27:13 -0400 Danilo Luiz Rheinheimer wrote: >> Hello, >> >> On another mail Dain Sundstrom says the spec does not say anything >> about mapping of CMR to database tables. >> I need on my application the kind of feature of the JBoss DynamicQL. >> But I will not want use it because I do not want use features >> proprietary features, I want my application portable. >> But I need to be able to create sql querys at run time. >> My question is all applications server did the mapping of >> relationships on the same way ? If I have a relationship Order to >> OrderItens (1 - N) in all applications server this will be mapped as a >> Integer field called Order in the table OrderItem ? >> If this happen I can do a "select * from Order, OrderItem where >> Order.Id=OrderItem.Id" and this will work on all applications servers. >> I think the way JBoss maps the relationships is very logic and >> clear. And Dain is not responsible by the implementations of other >> application severs. >> But what you know about that ? Is a good idea make select this way ? >> >> -- >> Best regards, >> Danilo mailto:[EMAIL PROTECTED] >> >> >> >> ------------------------------------------------------- >> This sf.net email is sponsored by: OSDN - Tired of that same old >> cell phone? Get a new here for FREE! >> https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 >> _______________________________________________ >> JBoss-user mailing list >> [EMAIL PROTECTED] >> https://lists.sourceforge.net/lists/listinfo/jboss-user >> >> DJ> ------------------------------------------------------- DJ> This sf.net email is sponsored by: OSDN - Tired of that same old DJ> cell phone? Get a new here for FREE! DJ> https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 DJ> _______________________________________________ DJ> JBoss-user mailing list DJ> [EMAIL PROTECTED] DJ> https://lists.sourceforge.net/lists/listinfo/jboss-user -- Best regards, Danilo mailto:[EMAIL PROTECTED] ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
