[jira] Commented: (LUCENE-1931) no hits query - query object that returns no hits

["Yonik Seeley (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-1931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12760265#action_12760265 ] 

Yonik Seeley commented on LUCENE-1931:
--------------------------------------

Just return null from Weight.scorer() and you can remove the NoHitsScorer.

Of course, one could always just use 
this_field_doesnt_exist:foo

or from java code, something like 
new TermQuery(new Term("-","-"))

> no hits query - query object that returns no hits
> -------------------------------------------------
>
>                 Key: LUCENE-1931
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1931
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Search
>    Affects Versions: 2.9
>            Reporter: John Wang
>         Attachments: nohitsquery.patch
>
>
> Query implementation that return no hits.

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