Scan annotation from a jar file

Question

Is it possible to scan annotations (Ex: javax.ejb.MessageDriven) from an external jar project.

I need to extract information from a given ear file . It is possible to do with EJB 2.x by parsing the deployment descriptors (ejb-jar.xml) but not quite for EJB 3.x

If possible, please give me an example.

Thank you very much for any reply.

You mean all @interface definitions _or_ all annotated classes/functions/interfaces/etc.? — rlegendi, Oct 04 '13 at 10:33
Yes. All annotated classes/functions/interfaces/etc ... if possible — Tran Ngu Dang, Oct 04 '13 at 10:57
Oh ok. Then there are tons of APIs for that, take a look on this thread for example: http://stackoverflow.com/questions/259140/scanning-java-annotations-at-runtime — rlegendi, Oct 04 '13 at 16:49

score 0 · Answer 1 · answered Oct 06 '13 at 02:32

Thanks, rlegendi

Look like Scannotation is a find solution for me. Here is the example:

URL[] urls = { new URL("jar:file:" + pathToJar+"!/") };
AnnotationDB db = new AnnotationDB(); 
db.scanArchives(urls);
System.out.println(db.getAnnotationIndex().get(javax.ejb.MessageDriven.class.getName()));

Scan annotation from a jar file

1 Answers1