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From "Robert Muir (Updated) (JIRA)" <>
Subject [jira] [Updated] (LUCENE-3801) Generify FST shortestPaths() to take a comparator
Date Fri, 02 Mar 2012 12:46:58 GMT


Robert Muir updated LUCENE-3801:

    Attachment: LUCENE-3801.patch

updated patch, instead of looking for 'output == 0' using the 'previousOutput + output ==
previousOutput' via the comparator.

random test passes now
> Generify FST shortestPaths() to take a comparator
> -------------------------------------------------
>                 Key: LUCENE-3801
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/FSTs
>    Affects Versions: 3.6, 4.0
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>         Attachments: LUCENE-3801.patch, LUCENE-3801.patch, LUCENE-3801.patch
> Not sure we should do this, it costs 5-10% performance for WFSTSuggester.
> But maybe we can optimize something here, or maybe its just no big deal to us.
> Because in general, this could be pretty powerful, e.g. if you needed to store 
> some custom stuff in the suggester, you could use pairoutputs, or whatever.
> And the possibility we might need shortestPaths for other cool things... at the
> least I just wanted to have the patch up here.
> I haven't tested this on pairoutputs... but i've tested it with e.g. FloatOutputs
> and other things and it works fine.
> I tried to minimize the generics violations, there is only 1 (cannot create generic array).

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