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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-794) Extend contrib Highlighter to properly support PhraseQuery, SpanQuery, ConstantScoreRangeQuery
Date Tue, 29 Apr 2008 23:24:56 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593166#action_12593166
] 

Hoss Man commented on LUCENE-794:
---------------------------------

bq. You have to ant dist before applying the patch to build the memory jar, then apply the
patch and ant again.

this seems like a bug/inconsistency in the new contrib/highlighter/build.xml

it added a "buildHighlighter" target which takes care of the dependency in building contrib/memory
... this isn't the way this is normally handled in contrib build.xml files because it's a
non standard target name that people (and the contrib walking code) don't know about.

xml-query-parser has a better example of doing this same kind of dependency...

<target name="compile-core" depends="build-queries, common.compile-core" />

> 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
>             Fix For: 2.3.2
>
>         Attachments: MultiPhraseQueryExtraction.patch, SpanHighlighter-01-26-2008.patch,
SpanHighlighter-01-28-2008.patch, SpanHighlighter-02-10-2008.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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