Class SortedSetDocValuesReaderState

Wraps a and resolves ords using existing APIs without a separate taxonomy index. This only supports flat facets (dimension + label), and it makes faceting a bit slower, adds some cost at reopen time, but avoids managing the separate taxonomy index. It also requires less RAM than the taxonomy index, as it manages the flat (2-level) hierarchy more efficiently. In addition, the tie-break during faceting is now meaningful (in label sorted order).

NOTE: creating an instance of this class is somewhat costly, as it computes per-segment ordinal maps, so you should create it once and re-use that one instance for a given .

Inheritance
System.Object
SortedSetDocValuesReaderState
DefaultSortedSetDocValuesReaderState
Namespace: Lucene.Net.Facet.SortedSet
Assembly: Lucene.Net.Facet.dll
Syntax
public abstract class SortedSetDocValuesReaderState : object

Constructors

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SortedSetDocValuesReaderState()

Sole constructor.

Declaration
protected SortedSetDocValuesReaderState()

Properties

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Count

Number of unique labels.

Declaration
public abstract int Count { get; }
Property Value
Type Description
System.Int32
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Field

Indexed field we are reading.

Declaration
public abstract string Field { get; }
Property Value
Type Description
System.String
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OrigReader

Returns top-level index reader.

Declaration
public abstract Index.IndexReader OrigReader { get; }
Property Value
Type Description
Index.IndexReader
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PrefixToOrdRange

Returns mapping from prefix to SortedSetDocValuesReaderState.OrdRange.

Declaration
public abstract IDictionary<string, SortedSetDocValuesReaderState.OrdRange> PrefixToOrdRange { get; }
Property Value
Type Description
IDictionary<System.String, SortedSetDocValuesReaderState.OrdRange>

Methods

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GetDocValues()

Return top-level doc values.

Declaration
public abstract Index.SortedSetDocValues GetDocValues()
Returns
Type Description
Index.SortedSetDocValues
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GetOrdRange(String)

Returns the SortedSetDocValuesReaderState.OrdRange for this dimension.

Declaration
public abstract SortedSetDocValuesReaderState.OrdRange GetOrdRange(string dim)
Parameters
Type Name Description
System.String dim
Returns
Type Description
SortedSetDocValuesReaderState.OrdRange