[haiku] Re: Need Some GSoC Advice
- From: "Stephan Assmus" <superstippi@xxxxxx>
- To: haiku@xxxxxxxxxxxxx
- Date: Tue, 24 Mar 2009 10:44:00 +0100
Hi,
Von: Truls Becken <truls.becken@xxxxxxxxx>
> Stephan Assmus wrote:
> > I am pretty sure that a separate database is the only possible way. For
> the simple reason, that document format plugins would otherwise render a
> central system component, the file system, unstable if they were executed in
> it's context. I think there ought to be an article on Ars about how
> Spotlight works internally (how it stays in sync with the filesystem
> notifications).
>
> An extractor running completely in userland does in no way mean a
> separate database is required. All it has to do is write attributes on
> the file in the normal fashion.
>
> The SkyOS Index Feeder saves meta data to attributes and full content
> to a database. Like already mentioned, some file types will only have
> meta data, while others have both. I think this is the only reasonable
> approach unless the full text index could also be implemented using
> attributes (requires changes to BFS).
Absolutely agreed, what I really meant was that the full text indexing could
not be built into BFS itself, but that it would need to be a separate userland
service.
Best regards,
-Stephan
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