Another option I guess would be to lookup dedicated
components for
performing the queries and storage directly without going through an
XWikiContext instance, but then what would be the proper way to
discover all the components that are available from the
ComponentManager (esp. query / storage) ?
By digging into the xwiki-platform code, I found that a QueryManager can
be accessed as follows, but I was wondering if there's a more easy way
to know about the components exposed by the ComponentManager at hand ?
componentManager.getInstance(QueryManager.class)
You mean knowing what's available without actually initializing it and
getting an instance ?