Class TermDistinctValuesCollector

A term based implementation of AbstractDistinctValuesCollector{TermDistinctValuesCollector.GroupCount} that relies on SortedDocValues to count the distinct values per group.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk
Inheritance
System.Object
AbstractDistinctValuesCollector<TermDistinctValuesCollector.GroupCount>
TermDistinctValuesCollector
Inherited Members
Namespace: Lucene.Net.Search.Grouping.Terms
Assembly: Lucene.Net.Grouping.dll
Syntax
public class TermDistinctValuesCollector : AbstractDistinctValuesCollector<TermDistinctValuesCollector.GroupCount>, IAbstractDistinctValuesCollector<TermDistinctValuesCollector.GroupCount>, ICollector

Constructors

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TermDistinctValuesCollector(String, String, IEnumerable<ISearchGroup<BytesRef>>)

Constructs TermDistinctValuesCollector instance.

Declaration
public TermDistinctValuesCollector(string groupField, string countField, IEnumerable<ISearchGroup<BytesRef>> groups)
Parameters
Type Name Description
System.String groupField

The field to group by
System.String countField

The field to count distinct values for
IEnumerable<ISearchGroup<BytesRef>> groups

The top N groups, collected during the first phase search

Properties

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Groups

Declaration
public override IEnumerable<TermDistinctValuesCollector.GroupCount> Groups { get; }
Property Value
Type Description
IEnumerable<TermDistinctValuesCollector.GroupCount>
Overrides
Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector<Lucene.Net.Search.Grouping.Terms.TermDistinctValuesCollector.GroupCount>.Groups

Methods

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Collect(Int32)

Declaration
public override void Collect(int doc)
Parameters
Type Name Description
System.Int32 doc
Overrides
Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector<Lucene.Net.Search.Grouping.Terms.TermDistinctValuesCollector.GroupCount>.Collect(System.Int32)
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SetNextReader(AtomicReaderContext)

Declaration
public override void SetNextReader(AtomicReaderContext context)
Parameters
Type Name Description
AtomicReaderContext context
Overrides
Lucene.Net.Search.Grouping.AbstractDistinctValuesCollector<Lucene.Net.Search.Grouping.Terms.TermDistinctValuesCollector.GroupCount>.SetNextReader(Lucene.Net.Index.AtomicReaderContext)

Implements