BaseXdb/basex] Packaging: Java and XQuery code (#1413)

Christian, all, The new "combined" packaging option ( https://github.com/BaseXdb/basex/issues/1413) seems like an interesting enhancement. I have been working on my first BaseX repository module/package (though unfortunately I am not yet fluent in Java). It is working perfectly so far, but I wanted to be sure I was going about it correctly because it still seems a little like magic to me. I am also wondering whether this new feature is something I might want to take advantage of. The module (https://github.com/timathom/basex-rdf) uses Günther Rademacher's REx Parser Generator[1] to create a Java parser for the RDF TriG/Turtle syntax[2], using the BaseX extension function option. Following the BaseX documentation[3], I have created a XAR package that includes the JAR file and an XQuery wrapper. The wrapper calls the function exposed by the Java module (import module namespace trig = "org.basex.modules.rdf.TriG";) and then processes the raw parse tree, overlaying some additional abstractions (I confess that I cheated and used XSLT for most of the processing functionality). Because of the built-in BaseX extension function, this approach seems different from a straightforward "combined" module approach, but, again, I wanted to ask whether the way I'm doing this seems correct. Thanks in advance. Tim [1] http://www.bottlecaps.de/rex/ [2] https://www.w3.org/TR/trig/ [3] docs.basex.org/wiki/Repository