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Date: Fri, 12 Nov 2010 08:30:26 +0100
Message-ID: <AANLkTi=cXsdeU5XgHQkYdcMcv-d3H-Oty3y9xdoZLoNN@mail.gmail.com>
Subject: Re: Non matched terms
From: Simon Willnauer <simon.willnauer@googlemail.com>
To: java-user@lucene.apache.org, brian@shopnation.com
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I assume that you don't use trunk and you don't have access to the new
Scorer#visitScorers(ScorerVisitor<Query, Query, Scorer> visitor)
methods which would make that little easier I guess. Yet, what you
could do is you could override TermQuery and wrap the created scorer
such that you set a flag if and only if that scorer scores a document
(which corresponds to a match then). that way you can afterwards
easily figure out what parts of you query did or did not match.

does that help?

simon


On Thu, Nov 11, 2010 at 2:41 AM, Brian C. Dilley <brian@shopnation.com> wro=
te:
> Hi, I'm using Lucene for a search project and I have the following
> requirements and I was wondering if one of you fine folks could point me
> in the right direction (currently i'm using the RAMDirectory,
> IndexSearcher, StandardAnalyzer and QueryParser):
>
> Given the example search string:
>
> "red leather calvin klein shiny pants"
>
> I will be searching 2 indexes. =C2=A0One is an index of category names th=
e
> other is an index of attributes. =C2=A0Lets say the following happens:
>
> red - matches an attribute
> leather - matches an attribute
> calvin klein - matches an antribute
> pants - matches a category
> shiny - matches nothing.
>
> I want to identify the non-matching "shiny" search term. =C2=A0That is, g=
iven
> a search string i want lucene to tell me what part(s) of it don't match
> anything.
>
> Is this possible? =C2=A0I've tried using extractTerms (along with another=
 API
> call that I am forgetting the name of right now) but it doesn't work for
> all Query types (ie: Fuzzy).
>
> Thanks in advance!
>
>
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