Class LabelToOrdinal

Abstract class for storing Label->Ordinal mappings in a taxonomy.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk
Inheritance
System.Object
LabelToOrdinal
CompactLabelToOrdinal
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Lucene.Net.Facet.Taxonomy.WriterCache
Assembly: Lucene.Net.Facet.dll
Syntax
public abstract class LabelToOrdinal

Constructors

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LabelToOrdinal()

Default constructor.

Declaration
public LabelToOrdinal()

Fields

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INVALID_ORDINAL

Returned by GetOrdinal(FacetLabel) when the label isn't recognized.

Declaration
public const int INVALID_ORDINAL = -2
Field Value
Type Description
System.Int32
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m_counter

How many ordinals we've seen.

Declaration
protected int m_counter
Field Value
Type Description
System.Int32

Properties

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MaxOrdinal

return the maximal Ordinal assigned so far

Declaration
public virtual int MaxOrdinal { get; }
Property Value
Type Description
System.Int32

Methods

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AddLabel(FacetLabel, Int32)

Adds a new label if its not yet in the table. Throws an System.ArgumentException if the same label with a different ordinal was previoulsy added to this table.

Declaration
public abstract void AddLabel(FacetLabel label, int ordinal)
Parameters
Type Name Description
FacetLabel label
System.Int32 ordinal
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GetNextOrdinal()

Returns the next unassigned ordinal. The default behavior of this method is to simply increment a counter.

Declaration
public virtual int GetNextOrdinal()
Returns
Type Description
System.Int32
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GetOrdinal(FacetLabel)

Returns the ordinal assigned to the given label, or INVALID_ORDINAL if the label cannot be found in this table.

Declaration
public abstract int GetOrdinal(FacetLabel label)
Parameters
Type Name Description
FacetLabel label
Returns
Type Description
System.Int32