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https://issues.apache.org/jira/browse/LUCENE-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736021#comment-13736021
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Michael McCandless commented on LUCENE-4906:
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Thanks Luca, that patch is nice.
I don't mind the generics ... but I do think this is added complexity (now
there are two public classes, and <T> throughout) for what is a supremely
expert use case. This is why I opted initially for the Object + super-expert
users simply cast it: it's minimal added complexity. It also matches the
current approach on LUCENE-5133 (though I had started with a class there to
break each snippet into the match and non-match parts).
Unfortunately, highlighting APIs seem to quickly become complex / hard to use,
and one of the awesome things about this highlighter is its API is very simple
compared to the others ...
> PostingsHighlighter's PassageFormatter should allow for rendering to
> arbitrary objects
> --------------------------------------------------------------------------------------
>
> Key: LUCENE-4906
> URL: https://issues.apache.org/jira/browse/LUCENE-4906
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Attachments: LUCENE-4906.patch, LUCENE-4906.patch
>
>
> For example, in a server, I may want to render the highlight result to
> JsonObject to send back to the front-end. Today since we render to string, I
> have to render to JSON string and then re-parse to JsonObject, which is
> inefficient...
> Or, if (Rob's idea:) we make a query that's like MoreLikeThis but it pulls
> terms from snippets instead, so you get proximity-influenced salient/expanded
> terms, then perhaps that renders to just an array of tokens or fragments or
> something from each snippet.
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