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## org.apache.lucene.analysis.cz
Class CzechAnalyzer

    java.lang.Object
      org.apache.lucene.analysis.Analyzer
          org.apache.lucene.analysis.cz.CzechAnalyzer

    public final class CzechAnalyzer

extends Analyzer

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, the exclusion list is empty by default.

Author:
  Lukas Zapletal [lzap@root.cz]

Field Summary
`static String[]` | `CZECH_STOP_WORDS` List of typical stopwords.

Constructor Summary
`CzechAnalyzer()` Builds an analyzer with the default stop words (`CZECH_STOP_WORDS`).
`CzechAnalyzer(File stopwords)` Builds an analyzer with the given stop words.
`CzechAnalyzer(HashSet stopwords)`
`CzechAnalyzer(String[] stopwords)` Builds an analyzer with the given stop words.

Method Summary
`void` | `loadStopWords(InputStream wordfile, String encoding)` Loads stopwords hash from resource stream (file, database...).
`TokenStream` | `tokenStream(String fieldName, Reader reader)` Creates a TokenStream which tokenizes all the text in the provided Reader.

Methods inherited from class org.apache.lucene.analysis.Analyzer
`getPositionIncrementGap, getPreviousTokenStream, reusableTokenStream, setPreviousTokenStream`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### CZECH_STOP_WORDS

    public static final String[] CZECH_STOP_WORDS

  List of typical stopwords.

Constructor Detail

### CzechAnalyzer

    public CzechAnalyzer()

  Builds an analyzer with the default stop words (`CZECH_STOP_WORDS`).

### CzechAnalyzer

    public CzechAnalyzer(String[] stopwords)

  Builds an analyzer with the given stop words.

### CzechAnalyzer

    public CzechAnalyzer(HashSet stopwords)

### CzechAnalyzer

    public CzechAnalyzer(File stopwords)
                  throws IOException

  Builds an analyzer with the given stop words.

  Throws:
    `IOException`

Method Detail

### loadStopWords

    public void loadStopWords(InputStream wordfile,
                              String encoding)

  Loads stopwords hash from resource stream (file, database...).

  Parameters:
    `wordfile` - File containing the wordlist
    `encoding` - Encoding used (win-1250, iso-8859-2, ...), null for default system encoding

### tokenStream

    public final TokenStream tokenStream(String fieldName,
                                         Reader reader)

  Creates a TokenStream which tokenizes all the text in the provided Reader.

  Specified by:
    `tokenStream` in class `Analyzer`
  Returns:
    A TokenStream build from a StandardTokenizer filtered with StandardFilter, LowerCaseFilter, and StopFilter

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