org.apache.lucene.analysis.en
Class EnglishAnalyzer
java.lang.Object
org.apache.lucene.analysis.Analyzer
org.apache.lucene.analysis.util.StopwordAnalyzerBase
org.apache.lucene.analysis.en.EnglishAnalyzer
- All Implemented Interfaces:
- Closeable
public final class EnglishAnalyzer
- extends StopwordAnalyzerBase
Analyzer
for English.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
EnglishAnalyzer
public EnglishAnalyzer(Version matchVersion)
- Builds an analyzer with the default stop words:
getDefaultStopSet()
.
EnglishAnalyzer
public EnglishAnalyzer(Version matchVersion,
CharArraySet stopwords)
- Builds an analyzer with the given stop words.
- Parameters:
matchVersion
- lucene compatibility versionstopwords
- a stopword set
EnglishAnalyzer
public EnglishAnalyzer(Version matchVersion,
CharArraySet stopwords,
CharArraySet stemExclusionSet)
- Builds an analyzer with the given stop words. If a non-empty stem exclusion set is
provided this analyzer will add a
SetKeywordMarkerFilter
before
stemming.
- Parameters:
matchVersion
- lucene compatibility versionstopwords
- a stopword setstemExclusionSet
- a set of terms not to be stemmed
getDefaultStopSet
public static CharArraySet getDefaultStopSet()
- Returns an unmodifiable instance of the default stop words set.
- Returns:
- default stop words set.
createComponents
protected Analyzer.TokenStreamComponents createComponents(String fieldName,
Reader reader)
- Creates a
Analyzer.TokenStreamComponents
which tokenizes all the text in the provided Reader
.
- Specified by:
createComponents
in class Analyzer
- Returns:
- A
Analyzer.TokenStreamComponents
built from an StandardTokenizer
filtered with
StandardFilter
, EnglishPossessiveFilter
,
LowerCaseFilter
, StopFilter
, SetKeywordMarkerFilter
if a stem exclusion set is
provided and PorterStemFilter
.
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