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

Packages that use AbstractAllGroupHeadsCollector.GroupHead
Package | Description
--- | ---
org.apache.lucene.search.grouping | This module enables search result grouping with Lucene, where hits with the same value in the specified single-valued group field are grouped together.
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 AbstractAllGroupHeadsCollector.GroupHead in org.apache.lucene.search.grouping

Classes in org.apache.lucene.search.grouping with type parameters of type AbstractAllGroupHeadsCollector.GroupHead
Modifier and Type | Class and Description
--- | ---
`class` | `AbstractAllGroupHeadsCollector<GH extends AbstractAllGroupHeadsCollector.GroupHead>` This collector specializes in collecting the most relevant document (group head) for each group that match the query.

Fields in org.apache.lucene.search.grouping declared as AbstractAllGroupHeadsCollector.GroupHead
Modifier and Type | Field and Description
--- | ---
`GH` | AbstractAllGroupHeadsCollector.TemporalResult.`groupHead`

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

Subclasses of AbstractAllGroupHeadsCollector.GroupHead in org.apache.lucene.search.grouping.function
Modifier and Type | Class and Description
--- | ---
`class` | `FunctionAllGroupHeadsCollector.GroupHead` Holds current head document for a single group.

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

Classes in org.apache.lucene.search.grouping.term with type parameters of type AbstractAllGroupHeadsCollector.GroupHead
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.