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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2009/11/13 23:44:39 UTC
[jira] Issue Comment Edited: (LUCENE-2064) Highlighter should
support all MultiFieldQuery subclasses without casts
[ https://issues.apache.org/jira/browse/LUCENE-2064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12777686#action_12777686 ]
Uwe Schindler edited comment on LUCENE-2064 at 11/13/09 10:42 PM:
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This is cool.
Highlighter & MTQ is broken in 2.9.1. This patch looks completely broken, but it isn't - and my mind was also broken when I first saw the patch - because of that. This patch is cooler than all heavy commiting during ApacheCon.
+1 for 3.0 with this patch.That was what I wanted to say with my complete nonsense comment.
was (Author: thetaphi):
This is cool.
Highlighter & MTQ is broken in 2.9.1. This patch looks completely broken - and my mind was also broken when I first saw the patch - because of that. This patch is cooler than all heavy commiting during ApacheCon.
+1 for 3.0 with this patch.That was what I wanted to say with my complete nonsense comment.
> Highlighter should support all MultiFieldQuery subclasses without casts
> -----------------------------------------------------------------------
>
> Key: LUCENE-2064
> URL: https://issues.apache.org/jira/browse/LUCENE-2064
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/highlighter
> Affects Versions: 2.9.1
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Fix For: 3.0
>
> Attachments: LUCENE-2064.txt
>
>
> In order to support MultiTermQuery subclasses the Highlighter component applies instanceof checks for concrete classes from the lucene core. This prevents classes like RegexQuery in contrib from being supported. Introducing dependencies on other contribs is not feasible just for being supported by the highlighter.
> While the instanceof checks and subsequent casts might hopefully go somehow away in the future but for supporting more multterm queries I have a alternative approach using a fake IndexReader that uses a RewriteMethod to force the MTQ to pass the field name to the given reader without doing any real work. It is easier to explain once you see the patch - I will upload shortly.
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