Package org.apache.lucene.analysis.core

## Class StopFilter

- java.lang.Object
- - org.apache.lucene.util.AttributeSource
  - - org.apache.lucene.analysis.TokenStream
    - - org.apache.lucene.analysis.TokenFilter
      - - org.apache.lucene.analysis.FilteringTokenFilter
        - - org.apache.lucene.analysis.StopFilter
          - - org.apache.lucene.analysis.core.StopFilter

- All Implemented Interfaces:
    `Closeable`, `AutoCloseable`, `Unwrappable<TokenStream>`

      public final class StopFilter
      extends StopFilter

  Removes stop words from a token stream.

  This class moved to Lucene Core, but a reference in the `analysis/common` module is preserved for documentation purposes and consistency with filter factory.

  See Also:
    `StopFilter`, `StopFilterFactory`

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

      `AttributeSource.State`

  - ### Field Summary

    - ### Fields inherited from class org.apache.lucene.analysis.TokenFilter

      `input`

    - ### Fields inherited from class org.apache.lucene.analysis.TokenStream

      `DEFAULT_TOKEN_ATTRIBUTE_FACTORY`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `StopFilter​(TokenStream in, CharArraySet stopWords)` | Constructs a filter which removes words from the input TokenStream that are named in the Set.

  - ### Method Summary

    - ### Methods inherited from class org.apache.lucene.analysis.StopFilter

      `accept, makeStopSet, makeStopSet, makeStopSet, makeStopSet`

    - ### Methods inherited from class org.apache.lucene.analysis.FilteringTokenFilter

      `end, incrementToken, reset`

    - ### Methods inherited from class org.apache.lucene.analysis.TokenFilter

      `close, unwrap`

    - ### Methods inherited from class org.apache.lucene.util.AttributeSource

      `addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, endAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### StopFilter

          public StopFilter​(TokenStream in,
                            CharArraySet stopWords)

      Constructs a filter which removes words from the input TokenStream that are named in the Set.
      Parameters:
        `in` - Input stream
        `stopWords` - A `CharArraySet` representing the stopwords.
      See Also:
        `StopFilter.makeStopSet(java.lang.String...)`