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https://issues.apache.org/jira/browse/LUCENE-8229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16433640#comment-16433640
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ASF subversion and git services commented on LUCENE-8229:
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Commit 502fd4bf12b8860b8eea504a96ad1b49dd52938c in lucene-solr's branch
refs/heads/branch_7x from [~romseygeek]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=502fd4b ]
LUCENE-8229: Add Weight.matches() to iterate over match positions
> Add a method to Weight to retrieve matches for a single document
> ----------------------------------------------------------------
>
> Key: LUCENE-8229
> URL: https://issues.apache.org/jira/browse/LUCENE-8229
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Attachments: LUCENE-8229.patch
>
> Time Spent: 5h 20m
> Remaining Estimate: 0h
>
> The ability to find out exactly what a query has matched on is a fairly
> frequent feature request, and would also make highlighters much easier to
> implement. There have been a few attempts at doing this, including adding
> positions to Scorers, or re-writing queries as Spans, but these all either
> compromise general performance or involve up-front knowledge of all queries.
> Instead, I propose adding a method to Weight that exposes an iterator over
> matches in a particular document and field. It should be used in a similar
> manner to explain() - ie, just for TopDocs, not as part of the scoring loop,
> which relieves some of the pressure on performance.
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