org.apache.lucene.analysis.sv
Class SwedishAnalyzer

java.lang.Object
  extended by org.apache.lucene.analysis.Analyzer
      extended by org.apache.lucene.analysis.ReusableAnalyzerBase
          extended by org.apache.lucene.analysis.StopwordAnalyzerBase
              extended by org.apache.lucene.analysis.sv.SwedishAnalyzer
All Implemented Interfaces:
Closeable

public final class SwedishAnalyzer
extends org.apache.lucene.analysis.StopwordAnalyzerBase

Analyzer for Swedish.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
org.apache.lucene.analysis.ReusableAnalyzerBase.TokenStreamComponents
 
Field Summary
static String DEFAULT_STOPWORD_FILE
          File containing default Swedish stopwords.
 
Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
matchVersion, stopwords
 
Constructor Summary
SwedishAnalyzer(org.apache.lucene.util.Version matchVersion)
          Builds an analyzer with the default stop words: DEFAULT_STOPWORD_FILE.
SwedishAnalyzer(org.apache.lucene.util.Version matchVersion, Set<?> stopwords)
          Builds an analyzer with the given stop words.
SwedishAnalyzer(org.apache.lucene.util.Version matchVersion, Set<?> stopwords, Set<?> stemExclusionSet)
          Builds an analyzer with the given stop words.
 
Method Summary
protected  org.apache.lucene.analysis.ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName, Reader reader)
          Creates a ReusableAnalyzerBase.TokenStreamComponents which tokenizes all the text in the provided Reader.
static Set<?> getDefaultStopSet()
          Returns an unmodifiable instance of the default stop words set.
 
Methods inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
getStopwordSet, loadStopwordSet, loadStopwordSet, loadStopwordSet
 
Methods inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
initReader, reusableTokenStream, tokenStream
 
Methods inherited from class org.apache.lucene.analysis.Analyzer
close, getOffsetGap, getPositionIncrementGap, getPreviousTokenStream, setPreviousTokenStream
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

DEFAULT_STOPWORD_FILE

public static final String DEFAULT_STOPWORD_FILE
File containing default Swedish stopwords.

See Also:
Constant Field Values
Constructor Detail

SwedishAnalyzer

public SwedishAnalyzer(org.apache.lucene.util.Version matchVersion)
Builds an analyzer with the default stop words: DEFAULT_STOPWORD_FILE.


SwedishAnalyzer

public SwedishAnalyzer(org.apache.lucene.util.Version matchVersion,
                       Set<?> stopwords)
Builds an analyzer with the given stop words.

Parameters:
matchVersion - lucene compatibility version
stopwords - a stopword set

SwedishAnalyzer

public SwedishAnalyzer(org.apache.lucene.util.Version matchVersion,
                       Set<?> stopwords,
                       Set<?> stemExclusionSet)
Builds an analyzer with the given stop words. If a non-empty stem exclusion set is provided this analyzer will add a KeywordMarkerFilter before stemming.

Parameters:
matchVersion - lucene compatibility version
stopwords - a stopword set
stemExclusionSet - a set of terms not to be stemmed
Method Detail

getDefaultStopSet

public static Set<?> getDefaultStopSet()
Returns an unmodifiable instance of the default stop words set.

Returns:
default stop words set.

createComponents

protected org.apache.lucene.analysis.ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName,
                                                                                                 Reader reader)
Creates a ReusableAnalyzerBase.TokenStreamComponents which tokenizes all the text in the provided Reader.

Specified by:
createComponents in class org.apache.lucene.analysis.ReusableAnalyzerBase
Returns:
A ReusableAnalyzerBase.TokenStreamComponents built from an StandardTokenizer filtered with StandardFilter, LowerCaseFilter, StopFilter , KeywordMarkerFilter if a stem exclusion set is provided and SnowballFilter.


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