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https://issues.apache.org/jira/browse/LUCENE-4290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13429089#comment-13429089
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Robert Muir commented on LUCENE-4290:
-------------------------------------
{quote}
Should we move EMPTY into DocsAndPositionsEnum?
{quote}
maybe it can be either moved or removed if the code is fixed :)
In this first patch its used both as a sentinel for a stopping condition and as
a placeholder for "term doesnt exist in this segment". The former i think is
no longer necessary and the latter is probably overkill.
{quote}
This isn't just a cutover from term vectors to postings right? It actually
scores each passage as if it were its own hit/document matching a search? Ie
the passage ranking/selection differs from the two existing highlighters.
{quote}
Right: I think its different in a number of ways. I hope it should be really
fast: but
again I didnt even bother benchmarking yet.
Its also limited in some ways since its just a prototype.
> basic highlighter that uses postings offsets
> --------------------------------------------
>
> Key: LUCENE-4290
> URL: https://issues.apache.org/jira/browse/LUCENE-4290
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/other
> Reporter: Robert Muir
> Attachments: LUCENE-4290.patch
>
>
> We added IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS so you can
> efficiently compress character offsets in the postings list, but nothing yet
> makes use of this.
> Here is a simple highlighter that uses them: it doesn't have many tests or
> fancy features, but I think its ok for the sandbox/ (maybe with a couple more
> tests)
> Additionally I didnt do any benchmarking.
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