[jbosscache-dev] PojoCache annotations and marker interfaces

[Brian Stansberry]

Kabir Khan wrote:
> At the AOP-level, the flavour of JBoss AOP deployed
> determines if we look for annotationc'ed interfaces (jdk
> 1.4), or real annotations (jdk 5), so there is not a lot that
> can be done in this regard at present...
> 

I'm not sure I follow. In the 4.2 testsuite I had a jboss-aop.xml that
included prepare expressions and SubjectImpl mixin introductions with
pointcuts for both @org.jboss.cache.aop.AopMarker (the marker interface)
and @org.jboss.cache.aop.annotation.PojoCacheable annotations.
Different test classes used each approach. For the classes that used the
marker interfaces, I first used annotationc. Then aopc was run against
all the classes.

This all worked fine until I found that the AS build had both flavors of
jboss-cache.jar on the classpath. When I fixed that, then annotationc
failed because the marker interfaces weren't on the classpath anymore.
But when all the classes were there, it all worked fine.

> If you have some suggestions for aopc, please send them my
> way :-) I've been thinking of tidying it up before we get AOP
> 2.0.0.GA out
> 

Sure; will do. Sorry for the rant. The missing classes thing pissed me
off and aopc got some spillover venom.

- Brian

>> -----Original Message-----
>> From: jbosscache-dev-bounces at lists.jboss.org
>> [mailto:jbosscache-dev-bounces at lists.jboss.org] On Behalf Of Brian
>> Stansberry Sent: 02 February 2007 20:24
>> To: jbosscache-dev at lists.jboss.org
>> Subject: [jbosscache-dev] PojoCache annotations and marker interfaces
>> 
>> I see that in 1.4.x, we have this lovely situation:
>> 
>> jboss-cache.jar includes the o.j.c.aop.(InstanceOf)AopMarker marker
>> interfaces. jboss-cache-jdk5.jar also includes the
>> o.j.c.aop.annotation.(InstanceOf)AopMarker annotations, but does not
>> include the marker interfaces.
>> 
>> Thus, in AS 4.2, if I want to support both annotation styles for
>> FIELD granularity replication, there is no JBC jar that I can
>> integrate to allow it. I'd like to support both, since it seems user
>> friendly to support the different methods the PojoCache examples
>> use. (Note: we're deprecating the redundant
> o.j.web.tomcat.tc5.session.AopMarker marker
>> interfaces, so good support of the standard PojoCache markers is
>> even more important.) 
>> 
>> If 1.4.1.SP1 isn't in QA yet (I saw another fix this AM) can we fix
>> this? I see no reason not to include the marker interfaces in the
>> jboss-cache-jdk5.jar. It's not like they don't work in JDK 5 or
>> something. 
>> 
>> This isn't critical, but this whole area is really user unfriendly
>> (don't get me started on the atrocious aopc) and doing what we can to
>> make it easier is a good thing.
>> 
>> Brian Stansberry
>> Lead, AS Clustering
>> JBoss, a division of Red Hat
>> Ph: 510-396-3864
>> skype: bstansberry
>> 
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