public abstract class StopwordAnalyzerBase extends Analyzer
Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents
Modifier and Type | Field and Description |
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protected CharArraySet |
stopwords
An immutable stopword set
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GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY
Modifier | Constructor and Description |
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protected |
StopwordAnalyzerBase()
Creates a new Analyzer with an empty stopword set
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protected |
StopwordAnalyzerBase(CharArraySet stopwords)
Creates a new instance initialized with the given stopword set
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Modifier and Type | Method and Description |
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CharArraySet |
getStopwordSet()
Returns the analyzer's stopword set or an empty set if the analyzer has no
stopwords
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protected static CharArraySet |
loadStopwordSet(boolean ignoreCase,
Class<? extends Analyzer> aClass,
String resource,
String comment)
Creates a CharArraySet from a file resource associated with a class.
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protected static CharArraySet |
loadStopwordSet(Path stopwords)
Creates a CharArraySet from a path.
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protected static CharArraySet |
loadStopwordSet(Reader stopwords)
Creates a CharArraySet from a file.
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attributeFactory, close, createComponents, getOffsetGap, getPositionIncrementGap, getReuseStrategy, getVersion, initReader, initReaderForNormalization, normalize, normalize, setVersion, tokenStream, tokenStream
protected final CharArraySet stopwords
protected StopwordAnalyzerBase(CharArraySet stopwords)
stopwords
- the analyzer's stopword setprotected StopwordAnalyzerBase()
public CharArraySet getStopwordSet()
protected static CharArraySet loadStopwordSet(boolean ignoreCase, Class<? extends Analyzer> aClass, String resource, String comment) throws IOException
Class.getResourceAsStream(String)
).ignoreCase
- true
if the set should ignore the case of the
stopwords, otherwise false
aClass
- a class that is associated with the given stopwordResourceresource
- name of the resource file associated with the given classcomment
- comment string to ignore in the stopword fileIOException
- if loading the stopwords throws an IOException
protected static CharArraySet loadStopwordSet(Path stopwords) throws IOException
stopwords
- the stopwords file to loadIOException
- if loading the stopwords throws an IOException
protected static CharArraySet loadStopwordSet(Reader stopwords) throws IOException
stopwords
- the stopwords reader to loadIOException
- if loading the stopwords throws an IOException
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