Class UpperCaseFilter

Normalizes token text to UPPER CASE.

You must specify the required LuceneVersion compatibility when creating UpperCaseFilter

NOTE: In Unicode, this transformation may lose information when the upper case character represents more than one lower case character. Use this filter when you Require uppercase tokens. Use the LowerCaseFilter for general search matching

Inheritance
System.Object
AttributeSource
TokenStream
TokenFilter
UpperCaseFilter
Implements
System.IDisposable
Inherited Members
System.Object.Equals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Lucene.Net.Analysis.Core
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class UpperCaseFilter : TokenFilter, IDisposable

Constructors

| Improve this Doc View Source

UpperCaseFilter(LuceneVersion, TokenStream)

Create a new UpperCaseFilter, that normalizes token text to upper case.

Declaration
public UpperCaseFilter(LuceneVersion matchVersion, TokenStream in)
Parameters
Type Name Description
LuceneVersion matchVersion

See LuceneVersion

TokenStream in

TokenStream to filter

Methods

| Improve this Doc View Source

IncrementToken()

Declaration
public override sealed bool IncrementToken()
Returns
Type Description
System.Boolean
Overrides

Implements

System.IDisposable