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https://issues.apache.org/jira/browse/LUCENE-2057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-2057:
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Attachment: scoredoc.patch
The patch is already finished and ready to commit.
> TopDocsCollector should not be declared with generic <T>
> --------------------------------------------------------
>
> Key: LUCENE-2057
> URL: https://issues.apache.org/jira/browse/LUCENE-2057
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Reporter: Shai Erera
> Fix For: 3.0
>
> Attachments: scoredoc.patch
>
>
> TopDocsCollector was changed to be TopDocsCollector<T>. However it has
> methods which specifically assume the PQ stores ScoreDoc. Therefore, if
> someone extends it and defines a type which is not ScoreDoc, things will
> break.
> We shouldn't put <T> on TopDocsCollector at all, but rather change its ctor
> to *protected TopDocsCollector(PriorityQueue<? extends ScoreDoc> pq)*.
> TopDocsCollector should handle ScoreDoc types. If we do this, we'll need to
> change FieldValueHitQueue's Entry to extend ScoreDoc as well.
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