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From "Terry Steichen" <te...@net-frame.com>
Subject Bitset Filters
Date Fri, 25 Oct 2002 22:08:59 GMT
Peter,

Could you give, or point to, a couple of examples on how to use bitset
filters in the way you describe below?

Regards,

Terry

----- Original Message -----
From: "Peter Carlson" <carlson@bookandhammer.com>
To: "Lucene Users List" <lucene-user@jakarta.apache.org>
Sent: Tuesday, October 22, 2002 11:26 PM
Subject: Re: Need Help URGENT


> I think the answer is yes.
>
> When creating a Lucene Document you can create a field which is the URL
> field. If you are not searching for words within the field, I would
> probably make it a keyword field type so you don't tokenize it into
> multiple Terms.
>
> Then you can great a multi-field search.
>
>
> url:www.apache.org AND lucene
>
> Where url is the field where the URL exists and the term you want to
> search for in your default field is Lucene.
>
> To answer what I think your second question is I will restate the
> question.
>
> Can Lucene support subsearching.
> Well yes and no. I will answer how to accomplish this, there is also
> some information in the FAQ about this.
>
> You can just add criteria to the search so
>
> url:www.apache.org AND lucene AND indexing
>
> This will return the subset of information.
>
> If you are going to do the same search over and over again, you may
> also want to look at filters, which basically keep a bitset of a Lucene
> search results so you don't actually have to do the search again, just
> an intersection of two bitsets.
>
> When you get the Hits back you can get the information from what ever
> field you want including the URL field that you will create.
>
> I hope this helps and is on the mark. If not, the answer in can you use
> Lucene to accomplish the task the answer is typically yes (The
> questions then become just how much work has to be done on top of
> Lucene, or is Lucene the right tool).
>
> --Peter
>
>
>
> On Tuesday, October 22, 2002, at 04:32 PM, nandkumar rayanker wrote:
>
> > Hi,
> >
> > Forther to the request already made in my previous
> > mail I would like to know:
> >
> > - Whether I can use lucene to search the remote site
> > or not?
> >
> > Here is what I wnt to do.
> > -Install Licene and search and create search info for
> > a given URL.
> >
> > -Search the info from search info already created .
> >
> > Can do this sort of things using Lucene or not?
> >
> > thanks and regards
> > Nandkumar
> >
> > --- nandkumar rayanker <nrayenker@sbcglobal.net>
> > wrote:
> >> Hi,
> >>
> >> I need to develop search java stand alone
> >> application,
> >> which takes "SearchString" and "URL/URLS"
> >>
> >> "SearchString": string to be searched in web
> >>
> >> URL/URLS" : List of URLs where string needs to
> >> searched.
> >> return: List of URL/URLS where "SearchString" is
> >> found.
> >>
> >> thanks & regards
> >> Nandkumar
> >>
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