On Sep 24, 2007, at 5:34 AM, Jörg Henne wrote:
Hi all,
we are currently investigating alternatives to JBoss AS. While
Geromino looks really, really promising, I could not quite make out
whether Geronimo features an equivalent to JBoss SARs, we
absolutely need. In case you are not familiar with SARs, here's the
bottom line:
* SARs are similar to EARs in that they present a self-contained
application including descriptors, Code and, possibly libraries.
* In contrast to EARs, SARs don't deploy enterprise applications
(Web Applications, EJBs), but services.
* Services are quite simply MBeans implementing a service interface
that lets the service hook into the container life-cycle (start/
stop) along with a descriptor detailing dependencies etc.
This sounds a lot like GBeans, however, I don't see how GBeans can
be deployed in a self-contained fashion. To make this a bit
clearer, here is our use case:
* Deploy services other than J2EE apps. Think, for example,
implementations of classic UNIX services like NFS, TFTP etc.
* We would like to be able to just drop the service packages
somewhere for deployment.
* They should be self-contained so that they can use their own
isolated class loader, in order to overcome possible library
version conflicts.
* Of course we need the life-cycle hooks.
* Oh, and did I mention: hot (re-) deployment would be great...
Does Geronimo offer something along those lines?
yes, you guessed right :-). services would correspond to gbeans and
sars to geronimo modules. The largest set of geronimo modules is
geronimo :-). Look in configs for lots of examples and feel free to
ask lots more questions. There's a dependency-between-modules system
so you can stop/start/redeploy a module and dependent services will
at least stop: I don't recall if they automatically restart if you
redeploy a module.
thanks
david jencks
Thanks
Joerg Henne
--
levigo software gmbh ---------- ein unternehmen der levigo gruppe
Max-Eyth-Strasse 30 Telefon: 07031 / 4161-30
D-71088 Holzgerlingen Telefax: 07031 / 4161-31
Geschäftsführer: Jörg Henne http://software.levigo.de/
Registergericht: Stuttgart HRB 245 177 USt-ID: DE216017092
