public final class GermanAnalyzer extends StopwordAnalyzerBase
Analyzer
for German 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). A default set of stopwords is used unless an alternative list is specified, but the exclusion list is empty by default.
You must specify the required Version
compatibility when creating GermanAnalyzer:
NOTE: This class uses the same Version
dependent settings as StandardAnalyzer
.
Analyzer.GlobalReuseStrategy, Analyzer.PerFieldReuseStrategy, Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents
Modifier and Type | Field and Description |
---|---|
static String |
DEFAULT_STOPWORD_FILE
File containing default German stopwords.
|
GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY
Constructor and Description |
---|
GermanAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words:
getDefaultStopSet() . |
GermanAnalyzer(Version matchVersion,
CharArraySet stopwords)
Builds an analyzer with the given stop words
|
GermanAnalyzer(Version matchVersion,
CharArraySet stopwords,
CharArraySet stemExclusionSet)
Builds an analyzer with the given stop words
|
Modifier and Type | Method and Description |
---|---|
static CharArraySet |
getDefaultStopSet()
Returns a set of default German-stopwords
|
getStopwordSet
close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, tokenStream, tokenStream
public static final String DEFAULT_STOPWORD_FILE
public GermanAnalyzer(Version matchVersion)
getDefaultStopSet()
.public GermanAnalyzer(Version matchVersion, CharArraySet stopwords)
matchVersion
- lucene compatibility versionstopwords
- a stopword setpublic GermanAnalyzer(Version matchVersion, CharArraySet stopwords, CharArraySet stemExclusionSet)
matchVersion
- lucene compatibility versionstopwords
- a stopword setstemExclusionSet
- a stemming exclusion setpublic static final CharArraySet getDefaultStopSet()
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