Package org.apache.lucene.analysis.core

# Class LowerCaseFilter

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

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

public final class LowerCaseFilter extends LowerCaseFilter
Normalizes token text to lower case.

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:
  - `LowerCaseFilter`
  - `LowerCaseFilterFactory`

- ## 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
  `LowerCaseFilter(TokenStream in)`
  Create a new LowerCaseFilter, that normalizes token text to lower case.

- ## Method Summary

  ### Methods inherited from class org.apache.lucene.analysis.LowerCaseFilter

  `incrementToken`

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

  `close, end, reset, 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 Details

  - ### LowerCaseFilter

    public LowerCaseFilter(TokenStream in)
    Create a new LowerCaseFilter, that normalizes token text to lower case.
    Parameters:
      `in` - TokenStream to filter