anita kulshreshtha wrote:
--- Tim McConnell <[EMAIL PROTECTED]> wrote:
Hi, I still think there needs to be a general consensus for the
handling of annotations in Geronimo.
So, to better explain this design proposal I've
created a few simple UML diagrams that demonstrates how it might work
with one of the Geronimo
builders--i.e. Tomcat.
Here's the link to the URL diagrams:
http://cwiki.apache.org/GMOxDEV/jsr-88-12.html
-- The first is just a diagram of the pertinent high-level use cases
for JSR-88 1.2
-- The second is an interaction diagram of deployment at a very
high-level as it currently works for
Tomcat
-- The third is the proposed interaction diagram of how deployment
will generally flow with
annotations. Namely:
-- Geronimo will find/discover all the annotations in the
artifact being deployed prior to
the createModule invocation on the TomcatBuilder
-- Geronimo will then update the deployment descriptor tags
in the XML accordingly and then
set the Metadata-Complete tag
-- Finally, during installation of module, Geronimo will
invoke Tomcat's
AnnotationProcessor implementation and pass it the array of
annotations that have been discovered,
and Tomcat's AnnotationProcessor will handle handle those
runtime-type annotations (e.g.,
PreDestory, PostConstruct, etc...) without corresponding deployment
descriptor tags. Note also that
Tomcat's AnnotationProcessor handles the resource injection as well.
IIUC Tomcat's AnnotationProcessor will also be scanning
WEB-INF/classes and WEB-INF/lib and discovering these annotations. Is
is not going to provide a JSR77 friendly DD back to us? Is that why we
must duplicate some of the work?
Thanks
Anita
Hi Anita, the current plan is to use David Blevin's ClassFinder code from XBEAN project to help
create a "JSR-77 friendly" DD when necessary and/or appropriate for Geronimo. And hopefully by using
Tomcat's own annotation processor we'll mitigate duplication of code/work.....
-- The fourth is just a class diagram (not yet complete) that shows
the new Geronimo annotation classes
Questions:
-- Is this a pattern that can be consistently used for other builders
as well like Jetty, Axis,
OpenEJB, Web Services, etc ??
-- Is it reasonable to assume that these other components will have
their own AnnotationProcessor
implementation (like Tomcat) that can be invoked by Geronimo during
deployment ??
--
Thanks,
Tim McConnell
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--
Thanks,
Tim McConnell
