On Jun 6, 2005, at 9:42 AM, Steve Loughran wrote:
Don Stewart wrote:
As an alternative to directly using the Java 1.5 annotations you
could
user the JSR-175 backport of the annotations spec.
Also on codehaus as http://backport175.codehaus.org/
Cheers
Don
yes, except we have to deal with building on OSS javac compilers; I
dont think jikes is annotation ready.
backport175 is in javadoc comments though, so there shouldn't be any
compiler issues with that. right?
I like the ideas of using backport175 and/or qdox. I think either of
these approaches will be much lighter and faster than using XDoclet.
the bigger issue with annotations is that their real role is to
provide metadata in the .class files, above and beyond the
@deprecated markers. We dont need that with ant *today*.
With backport175 you get access to the annotations at runtime if you
want. Same could be done with a qdox/XDoclet approach by building a
descriptor that is then available at runtime. It was always my hope
that IDE's would leverage this sort of metadata to better interact
with Ant build files.
Annotations would make more sense if you could annotate methods to
explicitly export them as elements/attributes, or explicitly hide
them, more to the point. You could even add extra information about
the cardinality of things (like elements must be unique, exclusive,
etc.) this would be useful to both docs and dynamically generated
schemas. But that is a lot of extra complexity. EJB-land is going
that way, as their life is already complex, and java1.5 promises
simplicity...
I'm not sure if you are pro/con for backport175 by reading your
response. backport175 seems to offer a cleaner system to the XDoclet
stuff I originally did. What are the cons to using it?
Erik
-steve
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