Package org.apache.lucene.analysis.el
Class GreekAnalyzer
- java.lang.Object
-
- org.apache.lucene.analysis.Analyzer
-
- org.apache.lucene.analysis.ReusableAnalyzerBase
-
- org.apache.lucene.analysis.StopwordAnalyzerBase
-
- org.apache.lucene.analysis.el.GreekAnalyzer
-
- All Implemented Interfaces:
Closeable
,AutoCloseable
public final class GreekAnalyzer extends StopwordAnalyzerBase
Analyzer
for the Greek 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 GreekAnalyzer:- As of 3.1, StandardFilter and GreekStemmer are used by default.
- As of 2.9, StopFilter preserves position increments
NOTE: This class uses the same
Version
dependent settings asStandardAnalyzer
.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
ReusableAnalyzerBase.TokenStreamComponents
-
-
Field Summary
Fields Modifier and Type Field Description static String
DEFAULT_STOPWORD_FILE
File containing default Greek stopwords.-
Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
matchVersion, stopwords
-
-
Constructor Summary
Constructors Constructor Description GreekAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words.GreekAnalyzer(Version matchVersion, String... stopwords)
Deprecated.useGreekAnalyzer(Version, Set)
insteadGreekAnalyzer(Version matchVersion, Map<?,?> stopwords)
Deprecated.useGreekAnalyzer(Version, Set)
insteadGreekAnalyzer(Version matchVersion, Set<?> stopwords)
Builds an analyzer with the given stop words.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected ReusableAnalyzerBase.TokenStreamComponents
createComponents(String fieldName, Reader reader)
CreatesReusableAnalyzerBase.TokenStreamComponents
used to tokenize all the text in the providedReader
.static Set<?>
getDefaultStopSet()
Returns a set of default Greek-stopwords-
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
-
-
-
-
Field Detail
-
DEFAULT_STOPWORD_FILE
public static final String DEFAULT_STOPWORD_FILE
File containing default Greek stopwords.- See Also:
- Constant Field Values
-
-
Constructor Detail
-
GreekAnalyzer
public GreekAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words.- Parameters:
matchVersion
- Lucene compatibility version, See above
-
GreekAnalyzer
public GreekAnalyzer(Version matchVersion, Set<?> stopwords)
Builds an analyzer with the given stop words.NOTE: The stopwords set should be pre-processed with the logic of
GreekLowerCaseFilter
for best results.- Parameters:
matchVersion
- Lucene compatibility version, See abovestopwords
- a stopword set
-
GreekAnalyzer
@Deprecated public GreekAnalyzer(Version matchVersion, String... stopwords)
Deprecated.useGreekAnalyzer(Version, Set)
insteadBuilds an analyzer with the given stop words.- Parameters:
stopwords
- Array of stopwords to use.
-
GreekAnalyzer
@Deprecated public GreekAnalyzer(Version matchVersion, Map<?,?> stopwords)
Deprecated.useGreekAnalyzer(Version, Set)
insteadBuilds an analyzer with the given stop words.
-
-
Method Detail
-
getDefaultStopSet
public static final Set<?> getDefaultStopSet()
Returns a set of default Greek-stopwords- Returns:
- a set of default Greek-stopwords
-
createComponents
protected ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName, Reader reader)
CreatesReusableAnalyzerBase.TokenStreamComponents
used to tokenize all the text in the providedReader
.- Specified by:
createComponents
in classReusableAnalyzerBase
- Parameters:
fieldName
- the name of the fields content passed to theReusableAnalyzerBase.TokenStreamComponents
sink as a readerreader
- the reader passed to theTokenizer
constructor- Returns:
ReusableAnalyzerBase.TokenStreamComponents
built from aStandardTokenizer
filtered withGreekLowerCaseFilter
,StandardFilter
,StopFilter
, andGreekStemFilter
-
-