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

Packages that use AbstractFirstPassGroupingCollector
org.apache.lucene.search.grouping.function: Support for grouping by {org.apache.lucene.queries.function.ValueSource}.
org.apache.lucene.search.grouping.term: Support for grouping by indexed terms via {org.apache.lucene.search.FieldCache}.

Uses of AbstractFirstPassGroupingCollector in org.apache.lucene.search.grouping.function

Subclasses of AbstractFirstPassGroupingCollector in org.apache.lucene.search.grouping.function
`class` `FunctionFirstPassGroupingCollector` Concrete implementation of `AbstractFirstPassGroupingCollector` that groups based on `ValueSource` instances.

Uses of AbstractFirstPassGroupingCollector in org.apache.lucene.search.grouping.term

Subclasses of AbstractFirstPassGroupingCollector in org.apache.lucene.search.grouping.term
`class` `TermFirstPassGroupingCollector` Concrete implementation of `AbstractFirstPassGroupingCollector` that groups based on field values and more specifically uses `SortedDocValues` to collect groups.

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