Namespace Lucene.Net.Search.Grouping.Function

Support for grouping by ValueSource.

Classes

FunctionAllGroupHeadsCollector

An implementation of AbstractAllGroupHeadsCollector for retrieving the most relevant groups when grouping by ValueSource.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

FunctionAllGroupHeadsCollector.GroupHead

Holds current head document for a single group.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

FunctionAllGroupsCollector

A collector that collects all groups that match the query. Only the group value is collected, and the order is undefined. This collector does not determine the most relevant document of a group.

Implementation detail: Uses ValueSource and FunctionValues to retrieve the field values to group by.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

FunctionDistinctValuesCollector

Function based implementation of AbstractDistinctValuesCollector.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

FunctionDistinctValuesCollector.GroupCount

Holds distinct values for a single group.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

FunctionFirstPassGroupingCollector

Concrete implementation of AbstractFirstPassGroupingCollector<TGroupValue> that groups based on ValueSource instances.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

FunctionSecondPassGroupingCollector

Concrete implementation of AbstractSecondPassGroupingCollector<TGroupValue> that groups based on ValueSource instances.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk