Re: [jboss-dev] Way to scan for classes that extend or implement
You can already do this with existing indexes.
AnnIndex ai = ...;
Set<Class> annClasses = ai.classHasAnnotation(Path.class.getName());
HierarchyIndex hi = ...;
for (Class annClass : annClasses)
{
Set<Class> hieClasses - hi.getSuperTypes(annClass);
...
}
Actually, you're in contradiction here:
* "classes that implement anntotations that are annotated with"
* MyResource is not an annotation
For "annotation on annotation" one could simply use the AI twice.
On Jun 14, 2010, at 3:43 PM, Bill Burke wrote:
I also have written a scanner plugin that indexes classes that
implement
anntotations that are annotated with:
i.e.
@Path
public interface MyResource {}
public class MyResourceImpl implements MyResource {}
Set<String> classes =
interfaceIndex.getAnntoationIndex(Path.class.getName())
Ales Justin wrote:
> I've fixed this in scanning trunk, so you don't need the url anymore.
> If null, the whole deployment unit's owning classpath will be checked.
>
> For the moment you can use the scanning trunk's snapshot - the api is still the
same,
> and I'll try to do new release asap -- need to fix some CL & Deployers issue
before doing the whole cycle.
>
>
> On Jun 11, 2010, at 10:46 PM, Rémy Maucherat wrote:
>
>> On Fri, Jun 11, 2010 at 5:35 PM, Bill Burke <bburke(a)redhat.com> wrote:
>>> Hmmm, where you get the classpathItem from then? AnnotationIndex
>>> doesn't require for you to provide this info.
>> It's just a regular VirtualFile to the JAR or exploded folder. For the
>> classpath you could do:
>> List<VirtualFile> classpath = (VFSDeploymentUnit) unit.getClassPath();
>>
>> Rémy
>>
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>
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--
Bill Burke
JBoss, a division of Red Hat
http://bill.burkecentral.com
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