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Re: more detailed version of query schema for simplesearch

From: Rick Henderson <rickh@netscape.com>
Date: Tue, 30 Jun 1998 13:33:15 -0700
Message-ID: <35994B8B.1B15433B@netscape.com>
To: "Babich, Alan" <ABabich@filenet.com>
CC: "'John Stracke'" <francis@netscape.com>, www-webdav-dasl@w3.org
The "file system" case might be interpreted as you have a bunch of XML
files
or HTML files with META tagged information.  Then the limits of the what
file systems supply don't apply.  There might be arbitrary name value pairs
in
there.

I think it's reasonable to require applications to advertise what
properties are
searchable, but not necessarily all the properties that are retrievable or
sortable.
The reason I think so is that search either by full text search engine or
SQL
database is going to define the searchable categories and I doubt that
direct reading
of the content is a practical search implementation technique.  (And for
the small
site where it is practical then they can also advertise the complete list
as easily as
they make the search)  Sorting and Retrieving aren't so constrained.

--Rick

Babich, Alan wrote:

> OK, readers. This is the question: Shall DASL (1) require all
> collections
> to advertise ALL the properties they support, or (2) shall DASL allow
> collections to advertise support for the minimum required property
> set defined by WebDAV and indicate explicitly that their advertised list
> of
> supported properties is incomplete?
>
> Alan Babich
>
> > -----Original Message-----
> > From: John Stracke [SMTP:francis@netscape.com]
> > Sent: June 30, 1998 10:27 AM
> > To:   www-webdav-dasl@w3.org
> > Subject:      Re: more detailed version of query schema for
> > simplesearch
> >
> > Babich, Alan wrote:
> >
> > > Then there's the file system case,
> > > where the files can have properties. For that case, yes, it
> > > would be a problem to enumerate the properties.
> >
> > Would it? Some properties will be provided by the filesystem, but
> > there
> > won't be very many (timestamps, owner ID, size), so the server can
> > just
> > hard-code the properties its OS supports.  (We can hypothesize about
> > filesystems that allow you to associate arbitrary properties with a
> > file,
> > but the only ones I know about that do that are Mac and Amiga.  MacOS
> > lets
> > you enumerate; I don't know if Amiga does, but it's slightly moot.
> > :-)
> >
> > So, most likely, properties will be kept in a separate file/DB of some
> > sort, and maintained by the DAV server; so the DAV server just needs
> > to
> > make sure it can enumerate the properties it maintains.
> >
> > --
> > /====================================================================\
> > |John (Francis) Stracke    |My opinions are my own.|S/MIME supported |
> > |Software Retrophrenologist|=========================================|
> > |Netscape Comm. Corp.      | Cogito ergo Spud.  (I think, therefore  |
> > |francis@netscape.com      |  I yam.)                                |
> > \====================================================================/
> > New area code for work number: 650
> >
> >



--
*************************************************
Rick Henderson            (Netscape)(650)937-3152
rickh@netscape.com
*************************************************
Received on Tuesday, 30 June 1998 16:32:53 GMT

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