Actually, Dian described some new layer of pluggable design to allow front end spec abstraction
To be more precise : SPI <-> Persistence manager <-> persistence impl In that way you can change your spec (ie your SPI) ike JDO and CMP, w/o rewriting the persistence links for each of you chosen persistence impl. emmanuel --- "Kington, Max" <[EMAIL PROTECTED]> a �crit�: > Right, > > But you can implement the SPI's from the J2EE spec > without > binding to any particular O/R mapping technology. I > think > that's what you're saying, but if you then use, for > example,m > Hibernate to persist your data it doesn't really > matter. They > need not be connected. > > I'm guessing it'll work like this, > > 1) Create the SPI interfaces. > 2) Implement a bridge to translate SPI interface > calls to persistance > interface calls > 3) Create the persistance interfaces > 4) Implement the persistance interfaces for your > chosen O/R mapping tool. > > Max > > > -----Original Message----- > From: Stefan Arentz [mailto:[EMAIL PROTECTED] > Sent: 08 August 2003 10:03 > To: [EMAIL PROTECTED] > Subject: Pluggable CMP (Re: Persistence framework) > > > > On Thursday, August 7, 2003, at 18:18, Tim O'Brien > wrote: > > > This might be a tougher question to answer than > Tomcat, Jetty > > integration, > > but one thing that would be desirable would be a > pluggable strategy for > > CMP. > > > > Does the current archtecture include any > provisions for a pluggable > > persistence layer - i.e. using Castor, Hibernate, > or OJB depending on > > your > > preference? > > I agree that pluggable persitence engines are > important, but do not > forget that this is to be a J2EE server; it has to > follow the spec. I > think it is far more important that the server > follows the current CMP > and JDO specs instead of already looking to much at > all the different > implementations as listed above. > > S. ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran�ais ! Yahoo! Mail : http://fr.mail.yahoo.com
