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https://issues.apache.org/jira/browse/LUCENE-3778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13227041#comment-13227041
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Michael McCandless commented on LUCENE-3778:
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bq. I think that the package.html should also be updated? It should use the
GroupSearch instead of all the different collectors.
+1, as long as GroupSearch covers all cases package.html now describes I guess?
> Create a grouping convenience class
> -----------------------------------
>
> Key: LUCENE-3778
> URL: https://issues.apache.org/jira/browse/LUCENE-3778
> Project: Lucene - Java
> Issue Type: Improvement
> Components: modules/grouping
> Reporter: Martijn van Groningen
> Attachments: LUCENE-3778.patch, LUCENE-3778.patch
>
>
> Currently the grouping module has many collector classes with a lot of
> different options per class. I think it would be a good idea to have a
> GroupUtil (Or another name?) convenience class. I think this could be a
> builder, because of the many options
> (sort,sortWithinGroup,groupOffset,groupCount and more) and implementations
> (term/dv/function) grouping has.
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