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https://issues.apache.org/jira/browse/LUCENE-6494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward updated LUCENE-6494:
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Attachment: LUCENE-6494.patch
Here's another go at this:
* SpanQueryWrapper takes a query and a searcher, and translates the query into
a spanquery equivalent
* SQW.advanceTo(doc) returns a Spans object (that will only support iteration
over Span positions, not .nextDoc() or .advance()), which can be used to
collect information via a SpanCollector
* PayloadSpanUtil is rewritten to use SQW under the hood
I'm not overly keen on SpanQueryWrapper as a name, but other than that I think
this API is reasonable?
> Make PayloadSpanUtil apply to other postings information
> --------------------------------------------------------
>
> Key: LUCENE-6494
> URL: https://issues.apache.org/jira/browse/LUCENE-6494
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Fix For: 5.2
>
> Attachments: LUCENE-6494.patch, LUCENE-6494.patch, LUCENE-6494.patch,
> LUCENE-6494.patch, LUCENE-6494.patch
>
>
> With the addition of SpanCollectors, we can now get arbitrary postings
> information from SpanQueries. PayloadSpanUtil does some rewriting to convert
> non-span queries into SpanQueries so that it can collect payloads. It would
> be good to make this more generic, so that we can collect any postings
> information from any query (without having to make invasive changes to
> already optimized Scorers, etc).
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