# Hierarchy For Package org.apache.lucene.search.grouping.term

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.lucene.search.grouping.AbstractDistinctValuesCollector.GroupCount<GROUP_VALUE_TYPE>
    - org.apache.lucene.search.grouping.term.TermDistinctValuesCollector.GroupCount
  - org.apache.lucene.search.SimpleCollector (implements org.apache.lucene.search.Collector, org.apache.lucene.search.LeafCollector)
    - org.apache.lucene.search.grouping.AbstractAllGroupHeadsCollector<GH>
      - org.apache.lucene.search.grouping.term.TermAllGroupHeadsCollector<GH>
    - org.apache.lucene.search.grouping.AbstractAllGroupsCollector<GROUP_VALUE_TYPE>
      - org.apache.lucene.search.grouping.term.TermAllGroupsCollector
    - org.apache.lucene.search.grouping.AbstractDistinctValuesCollector<GC>
      - org.apache.lucene.search.grouping.term.TermDistinctValuesCollector
    - org.apache.lucene.search.grouping.AbstractFirstPassGroupingCollector<GROUP_VALUE_TYPE>
      - org.apache.lucene.search.grouping.term.TermFirstPassGroupingCollector
    - org.apache.lucene.search.grouping.AbstractGroupFacetCollector
      - org.apache.lucene.search.grouping.term.TermGroupFacetCollector
    - org.apache.lucene.search.grouping.AbstractSecondPassGroupingCollector<GROUP_VALUE_TYPE>
      - org.apache.lucene.search.grouping.term.TermSecondPassGroupingCollector

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