Re: A question

Murray Altheim <[email protected]>
Newsgroups gmane.text.xml.xindice.user
Organization Knowledge Media Institute
Message-ID <[email protected]>
Xoan wrote:
> Hi again,
> 
> I think I know what you mean. And, yes, I believe that is one possible
> solution. Thanks!!
> 
> The only disadvantage I can see is to perform a search (i.e. : foot)
> over the entire collection of xml documents (reports). I would have to
> instantiate every document and then searching in each documente
> individually, am i wrong?If i'm not wrong this would be highly
> time-consuming ...

Xoan,

All searches happen this way, but that process of indexing goes
on *before* the user does the search, which is why it seems fast.
I've integrated Lucene into my Xindice collections, with a
listener that notes when a document is created, changed or deleted.
There's an initial cost of indexing the whole collection (if the
database is populated all at once), but the cost is incremental
and almost unnoticeable otherwise.

Because Lucene uses a model whereby you feed documents to various
indexers depending on their type (so a text document goes to a
different one than an HTML document, which needs a text stripper
to remove the markup), you don't need a separate text document
stored for each HTML document, if the only reason you're doing
that is having the text available for searching. You only create
the text temporarily for the indexer to function, then dump it.

Murray

......................................................................
Murray Altheim                          http://www.altheim.com/murray/
Strategic and Services Development
The Open University Library
The Open University, Milton Keynes, Bucks, MK7 6AA, UK               .

   MORE swift, more fleet, than the sun-stained feet of the Dawns that trample the night--
   More fleet, more swift, than the gleams that lift in the wake of a wild star's flight--
   Through the unpathed deeps of a sea that sweeps unplumbed, unsailed, unknown,
   Where the forces untamed, unseen, unnamed, have ruled from the First, alone,
   Now the Ghosts of Thought, with a message caught from the tales of the dreaming past,
   Unheard, unseen, with nor sound nor sheen, speed through the ultimate vast.

   excerpt from "Wireless Telegraph." by Don Marquis.  http://donmarquis.org/wireless.htm
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