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https://issues.apache.org/jira/browse/LUCENE-8422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16598475#comment-16598475
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Alan Woodward commented on LUCENE-8422:
---------------------------------------
Here's a patch that adds IntervalsSource#matches instead. The IntervalIterator
API is unchanged.
A few things to note:
1) Conjunction intervals that eagerly advance in order to minimize themselves
have been moved to a specialized class that caches Matches. This wraps things
up nicely, and doesn't touch the classes used for searching.
2) The MatchesIterator returned from Intervals.containedBy() has the unusual
property that its positions and offsets don't quite match up - the positions
are taken from the internal interval, while the offsets are from the containing
interval. This means that the MatchesIterator can be passed back up and used
as an Iterator in a containing MatchesIterator, but that highlighters (which
operate only on offsets) can correctly highlight the whole block.
3) All sources return {{null}} from {{MatchesIterator#getQuery()}}.
{{IntervalQuery#matches()}} then substitutes in the top-level query.
> Add Matches iteration to interval queries
> -----------------------------------------
>
> Key: LUCENE-8422
> URL: https://issues.apache.org/jira/browse/LUCENE-8422
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Attachments: LUCENE-8422.patch, LUCENE-8422.patch
>
>
> Follow up to LUCENE-8404, we can now add Matches iteration to interval
> queries in the sandbox.
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