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https://issues.apache.org/jira/browse/LUCENE-1754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733402#action_12733402
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Yonik Seeley commented on LUCENE-1754:
--------------------------------------
Still surprising that scorer() can return null... I guess it's been a blind
spot.
Another question - from QueryWrapperFilter:
{code}
public DocIdSet getDocIdSet(final IndexReader reader) throws IOException {
final QueryWeight weight = query.queryWeight(new IndexSearcher(reader));
return new DocIdSet() {
public DocIdSetIterator iterator() throws IOException {
return weight.scorer(reader, true, false);
}
};
}
{code}
So is it the case that DocIdSet.iterator() can also return null? That's what
this code does.
> Get rid of NonMatchingScorer from BooleanScorer2
> ------------------------------------------------
>
> Key: LUCENE-1754
> URL: https://issues.apache.org/jira/browse/LUCENE-1754
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Shai Erera
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.9
>
> Attachments: LUCENE-1754.patch
>
>
> Over in LUCENE-1614 Mike has made a comment about removing NonMatchinScorer
> from BS2, and return null in BooleanWeight.scorer(). I've checked and this
> can be easily done, so I'm going to post a patch shortly. For reference:
> https://issues.apache.org/jira/browse/LUCENE-1614?focusedCommentId=12715064&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12715064.
> I've marked the issue as 2.9 just because it's small, and kind of related to
> all the search enhancements done for 2.9.
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