org.apache.lucene.analysis
Class StopAnalyzer
java.lang.Object
org.apache.lucene.analysis.Analyzer
org.apache.lucene.analysis.ReusableAnalyzerBase
org.apache.lucene.analysis.StopwordAnalyzerBase
org.apache.lucene.analysis.StopAnalyzer
- All Implemented Interfaces:
- Closeable
public final class StopAnalyzer
- extends StopwordAnalyzerBase
Filters LetterTokenizer
with LowerCaseFilter
and StopFilter
.
You must specify the required Version
compatibility when creating StopAnalyzer:
- As of 3.1, StopFilter correctly handles Unicode 4.0
supplementary characters in stopwords
- As of 2.9, position increments are preserved
Field Summary |
static Set<?> |
ENGLISH_STOP_WORDS_SET
An unmodifiable set containing some common English words that are not usually useful
for searching. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ENGLISH_STOP_WORDS_SET
public static final Set<?> ENGLISH_STOP_WORDS_SET
- An unmodifiable set containing some common English words that are not usually useful
for searching.
StopAnalyzer
public StopAnalyzer(Version matchVersion)
- Builds an analyzer which removes words in
ENGLISH_STOP_WORDS_SET
.
- Parameters:
matchVersion
- See above
StopAnalyzer
public StopAnalyzer(Version matchVersion,
Set<?> stopWords)
- Builds an analyzer with the stop words from the given set.
- Parameters:
matchVersion
- See abovestopWords
- Set of stop words
StopAnalyzer
public StopAnalyzer(Version matchVersion,
File stopwordsFile)
throws IOException
- Builds an analyzer with the stop words from the given file.
- Parameters:
matchVersion
- See abovestopwordsFile
- File to load stop words from
- Throws:
IOException
- See Also:
WordlistLoader.getWordSet(File)
StopAnalyzer
public StopAnalyzer(Version matchVersion,
Reader stopwords)
throws IOException
- Builds an analyzer with the stop words from the given reader.
- Parameters:
matchVersion
- See abovestopwords
- Reader to load stop words from
- Throws:
IOException
- See Also:
WordlistLoader.getWordSet(Reader)
createComponents
protected ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName,
Reader reader)
- Creates
ReusableAnalyzerBase.TokenStreamComponents
used to tokenize all the text in the provided Reader
.
- Specified by:
createComponents
in class ReusableAnalyzerBase
- Parameters:
fieldName
- the name of the fields content passed to the
ReusableAnalyzerBase.TokenStreamComponents
sink as a readerreader
- the reader passed to the Tokenizer
constructor
- Returns:
ReusableAnalyzerBase.TokenStreamComponents
built from a LowerCaseTokenizer
filtered with
StopFilter
Copyright © 2000-2011 Apache Software Foundation. All Rights Reserved.