[LUCENE-3778] Create a grouping convenience class

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Component/s: modules/grouping
• Assignee: Unassigned
• Reporter: Martijn van Groningen
• Created: 14/Feb/12 09:42
• Updated: 28/Aug/22 13:08
• Resolved: 22/Mar/12 16:17

Description

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.