Hi,
as a newbie in O/R mapping tools, APIs and frameworks I find the following issue. All of the frameworks that I have browsed lacks from a basic problem: The classes that maps the corresponding tables in the database must be manually generated, either by hand (e.g. OJB) or by building the code (e.g. Jakarta Torque). This becomes a pain since it difficults to make an application that could "learn" for itself a data model and create its own classes. No way, AFAIK, for implementing general mechanism. I know about BCEL project, which is able to compile classes in runtime, and it could be really helpful to integrate with the previous ones and get automathic mechanims, but I do not any framework that take advantage of BCEL. The only way that I have seen to do something similar, is the mini-project SIMPER (Struts resources page), which is able to work out dynabeans (actually they are hashmaps in their guts), following a database schema, for it self. For me it has the problem that uses Servlets 2.3 filters and I am working with Servlets 2.2 specs. I just want to request your opinion or knowledge about a framework that can implement itself such a classes, or a framework which classes are not actually classes but hashmaps or something like that.... or even some one taking advantage of BCEL or analogous mechanism. I know is a difficult question, supposing that I am not mixing any concept up. :-) Thanks in advance, Adolfo >From: Adam Hardy <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: Struts Users Mailing List <[EMAIL PROTECTED]> >Subject: Re: Object Relational Bridge is great ! >Date: Fri, 05 Jul 2002 18:15:45 +0200 > >Hi Fabrice, >did you check out JDO? If so, why didn't you prefer it? > > > >fabrice dewasmes wrote: >>Hi, >> >>no problem this time but i'd like to applause chuck Cavaness with both >>hands >>for the public review of his struts book. Chuck, you're clairvoyant : >>using >>Object relational bridge is a great idea. we've hesitated between torque, >>castor, and OJB and it appears that OJB has a really powerful API and >>allows >>all kind of relational mappings (1:1, 1:n, m:n, inheritance, polymorphism, >>...) it saves a lot of time and i think this is many more powerful than >>EJBs. >> >>I definitely recommend this persistence framework to any people beginning >>a >>struts project (or even non struts project) >> >>Fabrice >> > > > >-- >To unsubscribe, e-mail: ><mailto:[EMAIL PROTECTED]> >For additional commands, e-mail: ><mailto:[EMAIL PROTECTED]> > _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
