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java.lang.Object org.apache.lucene.analysis.Analyzer org.apache.lucene.analysis.ReusableAnalyzerBase org.apache.lucene.analysis.cz.CzechAnalyzer
public final class CzechAnalyzer
Analyzer
for Czech 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
CzechAnalyzer:
CzechStemFilter
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[] |
CZECH_STOP_WORDS
Deprecated. use getDefaultStopSet() instead |
static String |
DEFAULT_STOPWORD_FILE
File containing default Czech stopwords. |
Constructor Summary | |
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CzechAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words ( getDefaultStopSet() ). |
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CzechAnalyzer(Version matchVersion,
File stopwords)
Deprecated. use CzechAnalyzer(Version, Set) instead |
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CzechAnalyzer(Version matchVersion,
HashSet<?> stopwords)
Deprecated. use CzechAnalyzer(Version, Set) instead |
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CzechAnalyzer(Version matchVersion,
Set<?> stopwords)
Builds an analyzer with the given stop words. |
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CzechAnalyzer(Version matchVersion,
Set<?> stopwords,
Set<?> stemExclusionTable)
Builds an analyzer with the given stop words and a set of work to be excluded from the CzechStemFilter . |
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CzechAnalyzer(Version matchVersion,
String... stopwords)
Deprecated. use CzechAnalyzer(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 a set of default Czech-stopwords |
void |
loadStopWords(InputStream wordfile,
String encoding)
Deprecated. use WordlistLoader.getWordSet(Reader, String)
and CzechAnalyzer(Version, Set) instead |
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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@Deprecated public static final String[] CZECH_STOP_WORDS
getDefaultStopSet()
instead
public static final String DEFAULT_STOPWORD_FILE
Constructor Detail |
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public CzechAnalyzer(Version matchVersion)
getDefaultStopSet()
).
matchVersion
- Lucene version to match See
abovepublic CzechAnalyzer(Version matchVersion, Set<?> stopwords)
matchVersion
- Lucene version to match See
abovestopwords
- a stopword setpublic CzechAnalyzer(Version matchVersion, Set<?> stopwords, Set<?> stemExclusionTable)
CzechStemFilter
.
matchVersion
- Lucene version to match See
abovestopwords
- a stopword setstemExclusionTable
- a stemming exclusion set@Deprecated public CzechAnalyzer(Version matchVersion, String... stopwords)
CzechAnalyzer(Version, Set)
instead
matchVersion
- Lucene version to match See
abovestopwords
- a stopword set@Deprecated public CzechAnalyzer(Version matchVersion, HashSet<?> stopwords)
CzechAnalyzer(Version, Set)
instead
matchVersion
- Lucene version to match See
abovestopwords
- a stopword set@Deprecated public CzechAnalyzer(Version matchVersion, File stopwords) throws IOException
CzechAnalyzer(Version, Set)
instead
matchVersion
- Lucene version to match See
abovestopwords
- a file containing stopwords
IOException
Method Detail |
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public static final Set<?> getDefaultStopSet()
@Deprecated public void loadStopWords(InputStream wordfile, String encoding)
WordlistLoader.getWordSet(Reader, String)
and CzechAnalyzer(Version, Set)
instead
wordfile
- File containing the wordlistencoding
- Encoding used (win-1250, iso-8859-2, ...), null for default system encodingprotected 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
, and CzechStemFilter
(only if version is >= LUCENE_31). If
a version is >= LUCENE_31 and a stem exclusion set is provided via
CzechAnalyzer(Version, Set, Set)
a
KeywordMarkerFilter
is added before
CzechStemFilter
.
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