Class PrefixAwareTokenFilter

Joins two token streams and leaves the last token of the first stream available to be used when updating the token values in the second stream based on that token.

The default implementation adds last prefix token end offset to the suffix token start and end offsets.

NOTE: This filter might not behave correctly if used with custom IAttributes, i.e. IAttributes other than the ones located in Lucene.Net.Analysis.TokenAttributes.

Inheritance

System.Object

AttributeSource

TokenStream

PrefixAwareTokenFilter

Implements

IDisposable

Inherited Members

TokenStream.Dispose()

AttributeSource.GetAttributeFactory()

AttributeSource.GetAttributeClassesEnumerator()

AttributeSource.GetAttributeImplsEnumerator()

AttributeSource.AddAttributeImpl(Attribute)

AttributeSource.AddAttribute<T>()

AttributeSource.HasAttributes

AttributeSource.HasAttribute<T>()

AttributeSource.GetAttribute<T>()

AttributeSource.ClearAttributes()

AttributeSource.CaptureState()

AttributeSource.RestoreState(AttributeSource.State)

AttributeSource.GetHashCode()

AttributeSource.Equals(Object)

AttributeSource.ReflectAsString(Boolean)

AttributeSource.ReflectWith(IAttributeReflector)

AttributeSource.CloneAttributes()

AttributeSource.CopyTo(AttributeSource)

AttributeSource.ToString()

Namespace: Lucene.Net.Analysis.Miscellaneous

Assembly: Lucene.Net.Analysis.Common.dll

Syntax

public class PrefixAwareTokenFilter : TokenStream, IDisposable

Constructors

PrefixAwareTokenFilter(TokenStream, TokenStream)

Declaration

public PrefixAwareTokenFilter(TokenStream prefix, TokenStream suffix)

Parameters

Type	Name	Description
TokenStream	prefix
TokenStream	suffix

Properties

Prefix

Declaration

public virtual TokenStream Prefix { get; set; }

Property Value

Type	Description
TokenStream

Suffix

Declaration

public virtual TokenStream Suffix { get; set; }

Property Value

Type	Description
TokenStream

Methods

Dispose(Boolean)

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

End()

Declaration

public override void End()

Overrides

TokenStream.End()

IncrementToken()

Declaration

public override sealed bool IncrementToken()

Returns

Type	Description
System.Boolean

Overrides

TokenStream.IncrementToken()

Reset()

Declaration

public override void Reset()

Overrides

TokenStream.Reset()

UpdateSuffixToken(Token, Token)

The default implementation adds last prefix token end offset to the suffix token start and end offsets.

Declaration

public virtual Token UpdateSuffixToken(Token suffixToken, Token lastPrefixToken)

Parameters

Type	Name	Description
Token	suffixToken	a token from the suffix stream
Token	lastPrefixToken	the last token from the prefix stream

Returns

Type	Description
Token	consumer token

Implements

IDisposable