# Uses of Package
org.apache.lucene.search.grouping.function

- Packages that use org.apache.lucene.search.grouping.function
  Package | Description
  --- | ---
  org.apache.lucene.search.grouping.function | Support for grouping by {org.apache.lucene.queries.function.ValueSource}.

- Classes in org.apache.lucene.search.grouping.function used by org.apache.lucene.search.grouping.function
  Class and Description
  FunctionAllGroupHeadsCollector.GroupHead Holds current head document for a single group.
  FunctionDistinctValuesCollector.GroupCount Holds distinct values for a single group.

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