Interface IAbstractFirstPassGroupingCollector<TGroupValue>

LUCENENET specific interface used to apply covariance to TGroupValue to simulate Java's wildcard generics.

Inherited Members

ICollector.SetScorer(Scorer)

ICollector.Collect(Int32)

ICollector.SetNextReader(AtomicReaderContext)

ICollector.AcceptsDocsOutOfOrder

Namespace: Lucene.Net.Search.Grouping

Assembly: Lucene.Net.Grouping.dll

Syntax

public interface IAbstractFirstPassGroupingCollector<out TGroupValue> : ICollector

Type Parameters

Name	Description
TGroupValue

Methods

GetTopGroups(Int32, Boolean)

Returns top groups, starting from offset. This may return null, if no groups were collected, or if the number of unique groups collected is <= offset.

Declaration

IEnumerable<ISearchGroup<TGroupValue>> GetTopGroups(int groupOffset, bool fillFields)

Parameters

Type	Name	Description
System.Int32	groupOffset	The offset in the collected groups
System.Boolean	fillFields	Whether to fill to SortValues

Returns

Type	Description
IEnumerable<ISearchGroup<TGroupValue>>	top groups, starting from offset

Remarks

LUCENENET NOTE: We must use rather than here because we need this to be covariant