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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-794) Extend contrib Highlighter to properly support PhraseQuery, SpanQuery, ConstantScoreRangeQuery
Date Tue, 19 Feb 2008 21:48:44 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12570472#action_12570472
] 

Mark Miller commented on LUCENE-794:
------------------------------------

Hey Mark H, any chance you will have some time to look at this soon?

Now that the test classes have been merged, any change to the current contrib test class will
break this patch.

I think everything is good except that we might want to alert which Highlighter version caused
the Junit test to fail., since almost every test is run with both the standard and new Span
Highlighter. I may just be nitpicking there though.

> Extend contrib Highlighter to properly support PhraseQuery, SpanQuery,  ConstantScoreRangeQuery
> -----------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-794
>                 URL: https://issues.apache.org/jira/browse/LUCENE-794
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Other
>            Reporter: Mark Miller
>            Priority: Minor
>         Attachments: SpanHighlighter-01-26-2008.patch, SpanHighlighter-01-28-2008.patch,
spanhighlighter.patch, spanhighlighter10.patch, spanhighlighter11.patch, spanhighlighter12.patch,
spanhighlighter2.patch, spanhighlighter3.patch, spanhighlighter5.patch, spanhighlighter6.patch,
spanhighlighter7.patch, spanhighlighter8.patch, spanhighlighter9.patch, spanhighlighter_24_January_2008.patch,
spanhighlighter_patch_4.zip
>
>
> This patch adds a new Scorer class (SpanQueryScorer) to the Highlighter package that
scores just like QueryScorer, but scores a 0 for Terms that did not cause the Query hit. This
gives 'actual' hit highlighting for the range of SpanQuerys, PhraseQuery, and  ConstantScoreRangeQuery.
New Query types are easy to add. There is also a new Fragmenter that attempts to fragment
without breaking up Spans.
> See http://issues.apache.org/jira/browse/LUCENE-403 for some background.
> There is a dependency on MemoryIndex.

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