## org.apache.lucene.analysis
Class MockTokenFilter

    java.lang.Object
      org.apache.lucene.util.AttributeSource
          org.apache.lucene.analysis.TokenStream
              org.apache.lucene.analysis.TokenFilter
                  org.apache.lucene.analysis.MockTokenFilter

All Implemented Interfaces:
  Closeable

    public final class MockTokenFilter

extends TokenFilter

A tokenfilter for testing that removes terms accepted by a DFA.

- Union a list of singletons to act like a stopfilter.
- Use the complement to act like a keepwordfilter
- Use a regex like `.{12,}` to act like a lengthfilter

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
`AttributeSource.AttributeFactory, AttributeSource.State`

Field Summary
`static CharacterRunAutomaton` `EMPTY_STOPSET` Empty set of stopwords
`static CharacterRunAutomaton` `ENGLISH_STOPSET` Set of common english stopwords

Fields inherited from class org.apache.lucene.analysis.TokenFilter
`input`

Constructor Summary
`MockTokenFilter(TokenStream input, CharacterRunAutomaton filter)` Create a new MockTokenFilter.

Method Summary
`boolean` `incrementToken()`

Methods inherited from class org.apache.lucene.analysis.TokenFilter
`close, end, reset`

Methods inherited from class org.apache.lucene.util.AttributeSource
`addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState`

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

Field Detail

### EMPTY_STOPSET

    public static final CharacterRunAutomaton EMPTY_STOPSET

  Empty set of stopwords

### ENGLISH_STOPSET

    public static final CharacterRunAutomaton ENGLISH_STOPSET

  Set of common english stopwords

Constructor Detail

### MockTokenFilter

    public MockTokenFilter(TokenStream input,
                           CharacterRunAutomaton filter)

  Create a new MockTokenFilter.

  Parameters:
    `input` - TokenStream to filter
    `filter` - DFA representing the terms that should be removed.

Method Detail

### incrementToken

    public boolean incrementToken()
                           throws IOException

  Specified by:
    `incrementToken` in class `TokenStream`
  Throws:
    `IOException`

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