[jira] [Updated] (LUCENE-4906) PostingsHighlighter's PassageFormatter should allow for rendering to arbitrary objects

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless updated LUCENE-4906:
---------------------------------------

    Attachment: LUCENE-4906.patch

Here's a simple patch, implementing Robs #1 idea (PassageFormatter.format returns Object, and then add an expert PostingsHighlighter.highlightFieldsAsObjects).

The change seems minimal and seems to work (I added a basic test) ...
                
> 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
>
>
> 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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