org.apache.lucene.analysis.br

Class BrazilianAnalyzer

public final class BrazilianAnalyzer extends Analyzer

Analyzer for Brazilian language. Supports an external list of stopwords (words that will not be indexed at all) and an external list of exclusions (word that will not be stemmed, but indexed).

Author: João Kramer

Field Summary
static String[]BRAZILIAN_STOP_WORDS
List of typical Brazilian stopwords.
Constructor Summary
BrazilianAnalyzer()
Builds an analyzer with the default stop words ({@link #BRAZILIAN_STOP_WORDS}).
BrazilianAnalyzer(String[] stopwords)
Builds an analyzer with the given stop words.
BrazilianAnalyzer(Hashtable stopwords)
Builds an analyzer with the given stop words.
BrazilianAnalyzer(File stopwords)
Builds an analyzer with the given stop words.
Method Summary
voidsetStemExclusionTable(String[] exclusionlist)
Builds an exclusionlist from an array of Strings.
voidsetStemExclusionTable(Hashtable exclusionlist)
Builds an exclusionlist from a Hashtable.
voidsetStemExclusionTable(File exclusionlist)
Builds an exclusionlist from the words contained in the given file.
TokenStreamtokenStream(String fieldName, Reader reader)
Creates a TokenStream which tokenizes all the text in the provided Reader.

Field Detail

BRAZILIAN_STOP_WORDS

public static final String[] BRAZILIAN_STOP_WORDS
List of typical Brazilian stopwords.

Constructor Detail

BrazilianAnalyzer

public BrazilianAnalyzer()
Builds an analyzer with the default stop words ({@link #BRAZILIAN_STOP_WORDS}).

BrazilianAnalyzer

public BrazilianAnalyzer(String[] stopwords)
Builds an analyzer with the given stop words.

BrazilianAnalyzer

public BrazilianAnalyzer(Hashtable stopwords)
Builds an analyzer with the given stop words.

BrazilianAnalyzer

public BrazilianAnalyzer(File stopwords)
Builds an analyzer with the given stop words.

Method Detail

setStemExclusionTable

public void setStemExclusionTable(String[] exclusionlist)
Builds an exclusionlist from an array of Strings.

setStemExclusionTable

public void setStemExclusionTable(Hashtable exclusionlist)
Builds an exclusionlist from a Hashtable.

setStemExclusionTable

public void setStemExclusionTable(File exclusionlist)
Builds an exclusionlist from the words contained in the given file.

tokenStream

public final TokenStream tokenStream(String fieldName, Reader reader)
Creates a TokenStream which tokenizes all the text in the provided Reader.

Returns: A TokenStream build from a StandardTokenizer filtered with StandardFilter, StopFilter, GermanStemFilter and LowerCaseFilter.

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