lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Michael McCandless (JIRA)" <>
Subject [jira] Commented: (LUCENE-2590) Enable access to the freq information in a Query's sub-scorers
Date Mon, 16 Aug 2010 11:09:16 GMT


Michael McCandless commented on LUCENE-2590:

OK I like the 3 methods instead of the single method with BooleanClause.OCCUR param.

The heavy generics would be useful for apps that eg have a fixed structure to all Queries
right?  Eg if you know your app only ever makes BooleanQuery w/ TermQuery sub-classes, you'd
parameterize the instantiation as <BooleanQuery,TermQuery,TermScrorer> (hmm though TermScorer
isn't public; maybe just leave S as Scorer)?  I think this makes sense.

I'll work on these but it'll be a little while -- I'm out on "vacation".

> Enable access to the freq information in a Query's sub-scorers
> --------------------------------------------------------------
>                 Key: LUCENE-2590
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>         Attachments: LUCENE-2590.patch, LUCENE-2590.patch
> The ability to gather more details than just the score, of how a given
> doc matches the current query, has come up a number of times on the
> user's lists.  (most recently in the thread "Query Match Count" by
> Ryan McV on java-user).
> EG if you have a simple TermQuery "foo", on each hit you'd like to
> know how many times "foo" occurred in that doc; or a BooleanQuery +foo
> +bar, being able to separately see the freq of foo and bar for the
> current hit.
> Lucene doesn't make this possible today, which is a shame because
> Lucene in fact does compute exactly this information; it's just not
> accessible from the Collector.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message