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https://issues.apache.org/jira/browse/LUCENE-3364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126790#comment-13126790
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Robert Muir commented on LUCENE-3364:
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can't you override the range methods like score(Collector, ... (see termscorer
for one scorer that overrides this method)
your scorer can even do this inside the original booleanscorer (it will call
this range method).
otherwise, we are adding per-document checks for what is a really special case.
> Add score threshold into Scorer.score()
> ---------------------------------------
>
> Key: LUCENE-3364
> URL: https://issues.apache.org/jira/browse/LUCENE-3364
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/query/scoring
> Reporter: John Wang
>
> This is an optimization for scoring.
> Given a Scorer.score() implementation, where features are gathered to
> calculate a score.
> Proposal, add a parameter to score, e.g. score(float threshold)
> This threshold is the minimum score to "beat" to make it to the current
> PriorityQueue. This could potential save a great deal of wasted calculation
> in the cases where recall is large.
> In our case specifically, some of the features needed to do calculation can
> be expensive to obtain, it would be nice to have a place to decide whether or
> not even fetching these features are necessary.
> Also, if we know the score would be low, simply threshold can be returned.
> Let me know if this makes sense and I can work on a patch.
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