On 7 Nov 2011, at 09:46, Felix Meschberger wrote: > Hi all, > > The OSGi Compendium specification is taking shape and it will include a > specification for Declarative Services annotations for build-tools. This is > the same turf as we operate on with the SCR maven plugin (and ant task). > > Going forward I see the following changes, we might want to apply to the SCR > plugin: > > * drop support for JavaDoc Tags. These have been deprecated for some time now > and I think going forward we should drop them. Not the least to make the > plugin code simpler. > > * change the retention level of our own annotations from source level to > class file. This would bring the retention level in line with the upcoming > OSGi annotations and would allow us ot uniformely read the annotations from > the class files. > > * Add support for the new OSGi standard annotations, of course. > > * Consider supportig mixing Felix and standard annotations in the same class > (not a requirement but might be helpful -- or confusing ;-) ) > > * Replace the use of QDox for reading annotations by a class file annotation > reader, such as the BND library. > > * For backwards compatibility keep the support for the intermediate XML files > (OSGI-INF/scr-plugin/scrinfo.xml) we used for inheritance support. But in the > future these files will not be generated any longer and be replaced by direct > class file reading of extended classes. > > As a consequence of these changes, of course, the SCR maven plugin etc. would > be released with an increased major version number due to broken backwards > compatibilty (dropping JavaDoc tag support). Existing Java annotation use and > existing compiled and bundled code keeps being supported. > > We also, at the moment, keep our own annotations because they have a number > of advantages IMHO over the standard annotations: > - support class inheritance and abstract components > - have separate @Service annotations (with a different default for service > exposure) > - have separate @Property annotations with simpler and less cluttering syntax > - integrated Metatype descriptor support > > WDYT ?
+1 for adding support for the upcoming standard annotations as well as continuing to support the enhanced Felix annotations I think it's ok to drop support for the javadoc tags (and bump up the plugin version accordingly) since people can still use the old plugin > Regards > Felix
