>From what I have seen, Cornerstone has some nice JMX management pieces built-in. We may want to look refactoring those JMX pieces out so they can be used standalone. That way, if we choose a framework that does not have JMX built-in, we can easily lay the Conerstone JMX pieces over the top.
Regards, *================================* | Scott T Weaver | | <[EMAIL PROTECTED]> | | Apache Jetspeed Portal Project | | Apache Pluto Portlet Container | *================================* > -----Original Message----- > From: David Le Strat [mailto:[EMAIL PROTECTED] > Sent: Monday, January 05, 2004 10:12 AM > To: Jetspeed Developers List > Subject: Re: [J2] Service Framework Proposal > > Glenn, > > Some more details: > > - JMX: java management extensions. > > Here is a good overview of JMX: > http://www.ebizq.net/topics/objects_components/features/1738.html > > It basically allows you to manage your components once > deployed. > > - Self contained, self configurable component: what i > mean by that a component and its functionality can be > encapsulated as a "jar" file and easily reused. Let's > take the persistence component (in J2 the persistence > plugin), assuming that you can just include the jar > file with its metadata when deploying that component, > it becomes straightforward to leverage it in the > portal framework and in portlets independently from > the portal framework. This is one possible scenario, > many others are possible. A little bit what EJBs are > trying to achieve but wihtout the overhead. > > Regards, > > David. > > --- "Glenn R. Golden" <[EMAIL PROTECTED]> wrote: > > David - > > > > Can you elaborate on a few of these areas: > > > > What exactly is JMX and what does supporting it mean > > for us? > > > > What are self contained / self configurable > > components? > > > > Thanks. > > > > - Glenn > > > > On Jan 4, 2004, at 9:45 AM, David Le Strat wrote: > > > > > Glenn, > > > > > > This is the kind of debate we should be having. > > > Spring actually falls into the AOP/IoC realm > > though > > > Spring is actually much bigger than that as it > > > provides an MVC framework and so on. > > > > > > If we stick to IoC/AOP, whichever framework is > > being > > > used, I believe that IoC 2 or 3 are the best > > choices > > > as you don't need a ServiceManager or JNDI to > > fetch > > > the dependencies from. > > > > > > Spring also supports AOP and even has its own AOP > > > implementation. > > > > > > On the drawbacks side, using Spring you have to > > > provide quite a bit of component metadata (which I > > > don't think is really a big deal, but some people > > may > > > think so) and we would have to implement JMX > > support. > > > > > > Another drawback of Spring seems to be the > > component > > > configuration itself. It does not seem possible > > to > > > allow deploying self contained components / self > > > configurable components. Configuration seems to > > be > > > tight to the web application configuration > > (through > > > the applicationContext.xml). So you would not be > > able > > > to package your application services independently > > of > > > the application. Please correct me if I missed > > > something here. > > > > > > I have not implemented a service using Spring per > > say. > > > If we could work around the configuration issue > > and > > > JMX, Spring could actually be a good fit for > > Jetspeed. > > > Any comments from others? > > > > > > Just my 2 cents. > > > > > > David. > > > > > > --- "Glenn R. Golden" <[EMAIL PROTECTED]> wrote: > > >> David, and Jetspeed all - > > >> > > >> Thanks for the proposal. We are also evaluating > > >> component frameworks > > >> for our CHEF project, which has been based on > > >> Jetspeed 1 and the > > >> Jetspeed / Turbine service model, which seems a > > type > > >> 1 IoC like Avalon. > > >> > > >> I am currently very interested in Spring's > > component > > >> framework, which > > >> can handle type 2 or 3 IoC. You mention it in > > your > > >> analysis, but did > > >> not end up recommending using it. Any specific > > >> comments of the merits > > >> or problems of Spring, in general, and for > > Jetspeed? > > >> > > >> Thanks. > > >> > > >> - Glenn > > >> > > >> > > >> > > > > > > --------------------------------------------------------------------- > > >> To unsubscribe, e-mail: > > >> [EMAIL PROTECTED] > > >> For additional commands, e-mail: > > >> [EMAIL PROTECTED] > > >> > > > > > > > > > __________________________________ > > > Do you Yahoo!? > > > Find out what made the Top Yahoo! 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