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From Patrick Diviacco <patrick.divia...@gmail.com>
Subject Re: Lucene nightly build: similarity score per field
Date Fri, 04 Mar 2011 20:21:51 GMT
ok thanks, one last thing: in my TimeSimilarity class, I just need to use
this formula:

queryTimeValue - DocTimeValue / normalizationFactor

to compute the similarity score of a time/date field.
How do you suggest to implement this ? Which methods do I need to overwrite
?

thanks

On 4 March 2011 20:39, Robert Muir <rcmuir@gmail.com> wrote:

> On Fri, Mar 4, 2011 at 2:12 PM, Patrick Diviacco
> <patrick.diviacco@gmail.com> wrote:
> > hey Robert,
> >
> > I know there is the documentation, I'm sorry I've confused setSimilarity
> > with setSimilarityProvider.
> >
> > However, my question was about "Similarity get(String field) method" (I
> > cannot understand from documentation sorry).
> >
> > Should I create a customSimilarity class implementing the
> SimilarityProvider
> > and then implement the get method ?
> >
> > Also, inside the get method should I check the passed string field and
> > return different custom similarities classes ?
>
> yes, the SimilarityProvider is a factory interface that returns a
> Similarity for a specified field.
>
> So you have to implement this interface, and in your get(String field)
> method return the appropriate Similarity for the field.
>
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