public final class CzechAnalyzer extends ReusableAnalyzerBase
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
ReusableAnalyzerBase.TokenStreamComponents
Modifier and Type | Field and Description |
---|---|
static java.lang.String[] |
CZECH_STOP_WORDS
Deprecated.
use
getDefaultStopSet() instead |
static java.lang.String |
DEFAULT_STOPWORD_FILE
File containing default Czech stopwords.
|
Constructor and Description |
---|
CzechAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words (
getDefaultStopSet() ). |
CzechAnalyzer(Version matchVersion,
java.io.File stopwords)
Deprecated.
use
CzechAnalyzer(Version, Set) instead |
CzechAnalyzer(Version matchVersion,
java.util.HashSet<?> stopwords)
Deprecated.
use
CzechAnalyzer(Version, Set) instead |
CzechAnalyzer(Version matchVersion,
java.util.Set<?> stopwords)
Builds an analyzer with the given stop words.
|
CzechAnalyzer(Version matchVersion,
java.util.Set<?> stopwords,
java.util.Set<?> stemExclusionTable)
Builds an analyzer with the given stop words and a set of work to be
excluded from the
CzechStemFilter . |
CzechAnalyzer(Version matchVersion,
java.lang.String... stopwords)
Deprecated.
use
CzechAnalyzer(Version, Set) instead |
Modifier and Type | Method and Description |
---|---|
protected ReusableAnalyzerBase.TokenStreamComponents |
createComponents(java.lang.String fieldName,
java.io.Reader reader)
Creates
ReusableAnalyzerBase.TokenStreamComponents
used to tokenize all the text in the provided Reader . |
static java.util.Set<?> |
getDefaultStopSet()
Returns a set of default Czech-stopwords
|
void |
loadStopWords(java.io.InputStream wordfile,
java.lang.String encoding)
Deprecated.
|
initReader, reusableTokenStream, tokenStream
close, getOffsetGap, getPositionIncrementGap, getPreviousTokenStream, setPreviousTokenStream
@Deprecated public static final java.lang.String[] CZECH_STOP_WORDS
getDefaultStopSet()
insteadpublic static final java.lang.String DEFAULT_STOPWORD_FILE
public CzechAnalyzer(Version matchVersion)
getDefaultStopSet()
).matchVersion
- Lucene version to match See
abovepublic CzechAnalyzer(Version matchVersion, java.util.Set<?> stopwords)
matchVersion
- Lucene version to match See
abovestopwords
- a stopword setpublic CzechAnalyzer(Version matchVersion, java.util.Set<?> stopwords, java.util.Set<?> stemExclusionTable)
CzechStemFilter
.matchVersion
- Lucene version to match See
abovestopwords
- a stopword setstemExclusionTable
- a stemming exclusion set@Deprecated public CzechAnalyzer(Version matchVersion, java.lang.String... stopwords)
CzechAnalyzer(Version, Set)
insteadmatchVersion
- Lucene version to match See
abovestopwords
- a stopword set@Deprecated public CzechAnalyzer(Version matchVersion, java.util.HashSet<?> stopwords)
CzechAnalyzer(Version, Set)
insteadmatchVersion
- Lucene version to match See
abovestopwords
- a stopword set@Deprecated public CzechAnalyzer(Version matchVersion, java.io.File stopwords) throws java.io.IOException
CzechAnalyzer(Version, Set)
insteadmatchVersion
- Lucene version to match See
abovestopwords
- a file containing stopwordsjava.io.IOException
public static final java.util.Set<?> getDefaultStopSet()
@Deprecated public void loadStopWords(java.io.InputStream wordfile, java.lang.String encoding)
WordlistLoader.getWordSet(Reader, String, Version)
and CzechAnalyzer(Version, Set)
insteadwordfile
- File containing the wordlistencoding
- Encoding used (win-1250, iso-8859-2, ...), null for default system encodingprotected ReusableAnalyzerBase.TokenStreamComponents createComponents(java.lang.String fieldName, java.io.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
constructorReusableAnalyzerBase.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
.