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java.lang.Object org.apache.lucene.analysis.Analyzer org.apache.lucene.analysis.ReusableAnalyzerBase org.apache.lucene.analysis.StopwordAnalyzerBase org.apache.lucene.analysis.ru.RussianAnalyzer
public final class RussianAnalyzer
Analyzer
for Russian language.
Supports an external list of stopwords (words that will not be indexed at all). A default set of stopwords is used unless an alternative list is specified.
You must specify the required Version
compatibility when creating RussianAnalyzer:
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase |
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ReusableAnalyzerBase.TokenStreamComponents |
Field Summary | |
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static String |
DEFAULT_STOPWORD_FILE
File containing default Russian stopwords. |
Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase |
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matchVersion, stopwords |
Constructor Summary | |
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RussianAnalyzer(Version matchVersion)
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RussianAnalyzer(Version matchVersion,
Map<?,?> stopwords)
Deprecated. use RussianAnalyzer(Version, Set) instead |
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RussianAnalyzer(Version matchVersion,
Set<?> stopwords)
Builds an analyzer with the given stop words |
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RussianAnalyzer(Version matchVersion,
Set<?> stopwords,
Set<?> stemExclusionSet)
Builds an analyzer with the given stop words |
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RussianAnalyzer(Version matchVersion,
String... stopwords)
Deprecated. use RussianAnalyzer(Version, Set) instead |
Method Summary | |
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protected ReusableAnalyzerBase.TokenStreamComponents |
createComponents(String fieldName,
Reader reader)
Creates ReusableAnalyzerBase.TokenStreamComponents
used to tokenize 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 |
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getStopwordSet, loadStopwordSet |
Methods inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase |
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initReader, reusableTokenStream, tokenStream |
Methods inherited from class org.apache.lucene.analysis.Analyzer |
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close, getOffsetGap, getPositionIncrementGap, getPreviousTokenStream, setPreviousTokenStream |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String DEFAULT_STOPWORD_FILE
Constructor Detail |
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public RussianAnalyzer(Version matchVersion)
@Deprecated public RussianAnalyzer(Version matchVersion, String... stopwords)
RussianAnalyzer(Version, Set)
instead
public RussianAnalyzer(Version matchVersion, Set<?> stopwords)
matchVersion
- lucene compatibility versionstopwords
- a stopword setpublic RussianAnalyzer(Version matchVersion, Set<?> stopwords, Set<?> stemExclusionSet)
matchVersion
- lucene compatibility versionstopwords
- a stopword setstemExclusionSet
- a set of words not to be stemmed@Deprecated public RussianAnalyzer(Version matchVersion, Map<?,?> stopwords)
RussianAnalyzer(Version, Set)
instead
Method Detail |
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public static Set<?> getDefaultStopSet()
protected ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName, Reader reader)
ReusableAnalyzerBase.TokenStreamComponents
used to tokenize all the text in the provided Reader
.
createComponents
in class ReusableAnalyzerBase
fieldName
- the name of the fields content passed to the
ReusableAnalyzerBase.TokenStreamComponents
sink as a readerreader
- the reader passed to the Tokenizer
constructor
ReusableAnalyzerBase.TokenStreamComponents
built from a StandardTokenizer
filtered with
StandardFilter
, LowerCaseFilter
, StopFilter
, KeywordMarkerFilter
if a stem exclusion set is
provided, and SnowballFilter
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