Friday, June 30, 2006 01:30 PM
Lucene is not limited to searching local files, not limited to windows, etc. It is also not a web crawler. :)
(free chapter) and have a look at Nutch, a Lucene sub-project.
If you are indexing a DB, though, check this forum, I just answered that question the other day. Also the Lucene FAQ on the Wiki answers this.