Class PhoneticFilterFactory

Factory for PhoneticFilter.

Create tokens based on phonetic encoders from the Language namespace.

This takes one required argument, "encoder", and the rest are optional:

  • encoder required, one of "DoubleMetaphone", "Metaphone", "Soundex", "RefinedSoundex", "Caverphone" (v2.0), or "ColognePhonetic" (case insensitive). If encoder isn't one of these, it'll be resolved as a class name either by itself if it already contains a '.' or otherwise as in the same package as these others.
  • inject (default=true) add tokens to the stream with the offset=0
  • maxCodeLength The maximum length of the phonetic codes, as defined by the encoder. If an encoder doesn't support this then specifying this is an error. 

<fieldType name="text_phonetic" class="solr.TextField" positionIncrementGap="100">
  <analyzer>
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.PhoneticFilterFactory" encoder="DoubleMetaphone" inject="true"/>
  </analyzer>
</fieldType>
Inheritance
System.Object
AbstractAnalysisFactory
TokenFilterFactory
PhoneticFilterFactory
Inherited Members
Namespace: Lucene.Net.Analysis.Phonetic
Assembly: Lucene.Net.Analysis.Phonetic.dll
Syntax
public class PhoneticFilterFactory : TokenFilterFactory, IResourceLoaderAware

Constructors

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PhoneticFilterFactory(IDictionary<String, String>)

Creates a new PhoneticFilterFactory.

Declaration
public PhoneticFilterFactory(IDictionary<string, string> args)
Parameters
Type Name Description
IDictionary<System.String, System.String> args

Fields

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ENCODER

parameter name: either a short name or a full class name

Declaration
public static readonly string ENCODER
Field Value
Type Description
System.String
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INJECT

parameter name: true if encoded tokens should be added as synonyms

Declaration
public static readonly string INJECT
Field Value
Type Description
System.String
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MAX_CODE_LENGTH

Declaration
public static readonly string MAX_CODE_LENGTH
Field Value
Type Description
System.String

Methods

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Create(TokenStream)

Declaration
public override TokenStream Create(TokenStream input)
Parameters
Type Name Description
TokenStream input
Returns
Type Description
TokenStream
Overrides
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GetEncoder()

Must be thread-safe.

Declaration
protected virtual IStringEncoder GetEncoder()
Returns
Type Description
IStringEncoder
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Inform(IResourceLoader)

Declaration
public virtual void Inform(IResourceLoader loader)
Parameters
Type Name Description
IResourceLoader loader

Implements

See Also