Create a grouping convenience class
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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
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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