public final class ArabicAnalyzer extends StopwordAnalyzerBase
Analyzer
for Arabic.
This analyzer implements light-stemming as specified by: Light Stemming for Arabic Information Retrieval http://www.mtholyoke.edu/~lballest/Pubs/arab_stem05.pdf
The analysis package contains three primary components:
ArabicNormalizationFilter
: Arabic orthographic normalization.
ArabicStemFilter
: Arabic light stemming
Analyzer.GlobalReuseStrategy, Analyzer.PerFieldReuseStrategy, Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents
Modifier and Type | Field and Description |
---|---|
static String |
DEFAULT_STOPWORD_FILE
File containing default Arabic stopwords.
|
GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY
Constructor and Description |
---|
ArabicAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words:
DEFAULT_STOPWORD_FILE . |
ArabicAnalyzer(Version matchVersion,
CharArraySet stopwords)
Builds an analyzer with the given stop words
|
ArabicAnalyzer(Version matchVersion,
CharArraySet stopwords,
CharArraySet stemExclusionSet)
Builds an analyzer with the given stop word.
|
Modifier and Type | Method and Description |
---|---|
static CharArraySet |
getDefaultStopSet()
Returns an unmodifiable instance of the default stop-words set.
|
getStopwordSet
close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, tokenStream, tokenStream
public static final String DEFAULT_STOPWORD_FILE
public ArabicAnalyzer(Version matchVersion)
DEFAULT_STOPWORD_FILE
.public ArabicAnalyzer(Version matchVersion, CharArraySet stopwords)
matchVersion
- lucene compatibility versionstopwords
- a stopword setpublic ArabicAnalyzer(Version matchVersion, CharArraySet stopwords, CharArraySet stemExclusionSet)
SetKeywordMarkerFilter
before
ArabicStemFilter
.matchVersion
- lucene compatibility versionstopwords
- a stopword setstemExclusionSet
- a set of terms not to be stemmedpublic static CharArraySet getDefaultStopSet()
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