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https://issues.apache.org/jira/browse/LUCENE-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lee Hinman updated LUCENE-6304:
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Attachment: LUCENE-6304.patch
Adrien: I agree about having the hashCode.
Here is a new patch that doesn't override equals or hashCode and changes Query
to use use the class in the hashCode method as Adrien suggested.
> Add MatchNoDocsQuery that matches no documents
> ----------------------------------------------
>
> Key: LUCENE-6304
> URL: https://issues.apache.org/jira/browse/LUCENE-6304
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: 5.0
> Reporter: Lee Hinman
> Priority: Minor
> Attachments: LUCENE-6304.patch, LUCENE-6304.patch, LUCENE-6304.patch,
> LUCENE-6304.patch
>
>
> As a followup to LUCENE-6298, it would be nice to have an explicit
> MatchNoDocsQuery to indicate that no documents should be matched. This would
> hopefully be a better indicator than a BooleanQuery with no clauses or (even
> worse) null.
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