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From Andrzej Bialecki ...@getopt.org>
Subject Re: How lucene and nucth work together?
Date Wed, 22 Jun 2005 15:36:53 GMT
Giovanni Dima wrote:
> Andrzej, tanks for the reply. I'm sorry but i've another (similar)
> question... Lucene and nutch use the same parser and analyzer?

No, they don't.

> I seems to understand that the segments created from the nutch  are
> different from those creating from lucene. I've installed nutch and

They are not simply different - they represent completely different data 
structures, only accidentally named the same...

> I've created folders db and segments. Then, as explained in the
> tutorial, i've created a new database, injected urls into it,
> generated a fetchlist from the database and indexed the segment with
> the command bin/nutch index .. May I use as lucene's "indexLocation"
> the index folder created in this way? If I may not, how can I make a
> valid index for lucene?

In Lucene API there is no such thing as "indexLocation". You probably 
refer to the search demo application, included in Lucene distribution. 
If that's the case, then the answer is no - it won't work with indexes 
created by Nutch. However, if you use Lucene API, you can work with them 
just fine - they are normal Lucene indexes, just the field names, and 
analyzers used are different.

I suggest you to look inside the demo app., and see how Lucene's API is 
used.

-- 
Best regards,
Andrzej Bialecki     <><
  ___. ___ ___ ___ _ _   __________________________________
[__ || __|__/|__||\/|  Information Retrieval, Semantic Web
___|||__||  \|  ||  |  Embedded Unix, System Integration
http://www.sigram.com  Contact: info at sigram dot com


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