Namespace Lucene.Net.Search.Grouping.Function

Support for grouping by <xref:Lucene.Net.Queries.Function.ValueSource>.

Classes

FunctionAllGroupHeadsCollector

An implementation of AbstractAllGroupHeadsCollector for retrieving the most relevant groups when grouping by Lucene.Net.Queries.Function.ValueSource.

Note

This API is experimental and might change in incompatible ways in the next release.

FunctionAllGroupHeadsCollector.GroupHead

Holds current head document for a single group.

Note

This API is experimental and might change in incompatible ways in the next release.

FunctionAllGroupsCollector<TMutableValue>

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 Lucene.Net.Queries.Function.ValueSource and Lucene.Net.Queries.Function.FunctionValues to retrieve the field values to group by.

Note

This API is experimental and might change in incompatible ways in the next release.

FunctionDistinctValuesCollector

Function based implementation of AbstractDistinctValuesCollector.

Note

This API is experimental and might change in incompatible ways in the next release.

FunctionDistinctValuesCollector.GroupCount

Holds distinct values for a single group.

Note

This API is experimental and might change in incompatible ways in the next release.

FunctionFirstPassGroupingCollector<TMutableValue>

Concrete implementation of AbstractFirstPassGroupingCollector<TGroupValue> that groups based on Lucene.Net.Queries.Function.ValueSource instances.

Note

This API is experimental and might change in incompatible ways in the next release.

FunctionSecondPassGroupingCollector<TMutableValue>

Concrete implementation of AbstractSecondPassGroupingCollector<TGroupValue> that groups based on Lucene.Net.Queries.Function.ValueSource instances.

Note

This API is experimental and might change in incompatible ways in the next release.