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
Namespace: Lucene.Net.Facet.Taxonomy.WriterCache
Assembly: Lucene.Net.Facet.dll
Syntax
public abstract class LabelToOrdinal : object

Constructors

| Improve this Doc View Source

LabelToOrdinal()

Default constructor.

Declaration
public LabelToOrdinal()

Fields

| Improve this Doc View Source

INVALID_ORDINAL

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

Declaration
public const int INVALID_ORDINAL = null
Field Value
Type Description
System.Int32
| Improve this Doc View Source

m_counter

How many ordinals we've seen.

Declaration
protected int m_counter
Field Value
Type Description
System.Int32

Properties

| Improve this Doc View Source

MaxOrdinal

return the maximal Ordinal assigned so far

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

Methods

| Improve this Doc View Source

AddLabel(FacetLabel, Int32)

Adds a new label if its not yet in the table. Throws an 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
| Improve this Doc View Source

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
| Improve this Doc View Source

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