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

- Packages that use AbstractAllGroupHeadsCollector
  Package | Description
  --- | ---
  org.apache.lucene.search.grouping.function | Support for grouping by `ValueSource`.
  org.apache.lucene.search.grouping.term | Support for grouping by indexed terms via `DocValues`.

- - ### Uses of AbstractAllGroupHeadsCollector in org.apache.lucene.search.grouping.function

    Subclasses of AbstractAllGroupHeadsCollector in org.apache.lucene.search.grouping.function
    Modifier and Type | Class and Description
    --- | ---
    `class` | `FunctionAllGroupHeadsCollector` An implementation of `AbstractAllGroupHeadsCollector` for retrieving the most relevant groups when grouping by `ValueSource`.

  - ### Uses of AbstractAllGroupHeadsCollector in org.apache.lucene.search.grouping.term

    Subclasses of AbstractAllGroupHeadsCollector in org.apache.lucene.search.grouping.term
    Modifier and Type | Class and Description
    --- | ---
    `class` | `TermAllGroupHeadsCollector<GH extends AbstractAllGroupHeadsCollector.GroupHead<?>>` A base implementation of `AbstractAllGroupHeadsCollector` for retrieving the most relevant groups when grouping on a string based group field.

    Methods in org.apache.lucene.search.grouping.term that return AbstractAllGroupHeadsCollector
    Modifier and Type | Method and Description
    --- | ---
    `static AbstractAllGroupHeadsCollector<?>` | TermAllGroupHeadsCollector.`create(String groupField, Sort sortWithinGroup)` Creates an `AbstractAllGroupHeadsCollector` instance based on the supplied arguments.
    `static AbstractAllGroupHeadsCollector<?>` | TermAllGroupHeadsCollector.`create(String groupField, Sort sortWithinGroup, int initialSize)` Creates an `AbstractAllGroupHeadsCollector` instance based on the supplied arguments.

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