> Think *big*.
>
hear hear,
marc
> regards,
>
> -Rob
>
>
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Aaron Mulder
> Sent: Sunday, September 03, 2000 11:07 PM
> To: jBoss Developer
> Subject: [jBoss-Dev] More JMX
>
>
> On Sun, 3 Sep 2000, Rickard [iso-8859-1] �berg wrote:
> > ...
> > Second, this is simply solved by introducing aggregate MBeans. For
> > example (all names below are fictious. change where needed):
> > Add a dummy MBean called "DataSources". Add relationships so that
> > "DataSources" requires "HypersonicDataSource" and "InstantDBDataSource".
> > This means that "DataSources" will not be considered started before the
> > two real datasources have been started. So, now the AutoDeployer can
> > rely on "DataSources" instead of "HypersonicDataSource". Tada. Solved.
> >
> > Now, in a simpler setup you would not use the aggregate, and let the
> > AutoDeployer require, for example, "HypersonicDatabase" directly. Since
> > relationships should be external to all MBeans this kind of rewiring
> > would be trivial to do.
>
> I don't know - this is asking an awful lot of a user. Now if I
> want to add two datasources, I have to also add an aggregate datasource,
> and also tell AutoDeployer and Configurator and who knows what else what
> to listen for it? Plus I need to know to tell the data source to listen
> for the transaction manager, the classpath extensions, the logger, etc.?
> This may be "trivial" to do, but knowing exactly what to do and getting it
> all right will be a total PITA.
> That's going to far. Why don't we just load everything in the
> order it's listed in the file? That would require no extra code or
> configurations, and it's an easy rule. It makes shutting down a service a
> little more heavy (shutdown everything after it too, or require the user
> to manually shut down dependent services), but I have to believe we'll add
> a lot more value in having a simple configuration process than in having a
> hugely flexible service shutdown process (when was the last time you
> wanted to shut down 1 ClassPathExtension and nothing else?). And it would
> make it a lot easier to handle services like auto-deployer and
> configurator that really want to be "last".
>
> Aaron
>
>
>
>
>
>
