## Uses of Class
org.apache.lucene.search.grouping.GroupReducer

- - ### Uses of GroupReducer in org.apache.lucene.search.grouping

    Fields in org.apache.lucene.search.grouping declared as GroupReducer
    Modifier and Type | Field and Description
    --- | ---
    `protected GroupReducer<T,?>` | SecondPassGroupingCollector.`groupReducer`

    Constructors in org.apache.lucene.search.grouping with parameters of type GroupReducer
    Constructor and Description
    `SecondPassGroupingCollector(GroupSelector<T> groupSelector, Collection<SearchGroup<T>> groups, GroupReducer<T,?> reducer)` Create a new SecondPassGroupingCollector

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