Class Lucene43NGramTokenizer

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable

    @Deprecated
    public final class Lucene43NGramTokenizer
    extends Tokenizer
    Deprecated.
    Old broken version of NGramTokenizer.
    • Field Detail

      • DEFAULT_MIN_NGRAM_SIZE

        public static final int DEFAULT_MIN_NGRAM_SIZE
        Deprecated.
        See Also:
        Constant Field Values
      • DEFAULT_MAX_NGRAM_SIZE

        public static final int DEFAULT_MAX_NGRAM_SIZE
        Deprecated.
        See Also:
        Constant Field Values
    • Constructor Detail

      • Lucene43NGramTokenizer

        public Lucene43NGramTokenizer​(java.io.Reader input,
                                      int minGram,
                                      int maxGram)
        Deprecated.
        Creates NGramTokenizer with given min and max n-grams.
        Parameters:
        input - Reader holding the input to be tokenized
        minGram - the smallest n-gram to generate
        maxGram - the largest n-gram to generate
      • Lucene43NGramTokenizer

        public Lucene43NGramTokenizer​(AttributeSource.AttributeFactory factory,
                                      java.io.Reader input,
                                      int minGram,
                                      int maxGram)
        Deprecated.
        Creates NGramTokenizer with given min and max n-grams.
        Parameters:
        factory - AttributeSource.AttributeFactory to use
        input - Reader holding the input to be tokenized
        minGram - the smallest n-gram to generate
        maxGram - the largest n-gram to generate
      • Lucene43NGramTokenizer

        public Lucene43NGramTokenizer​(java.io.Reader input)
        Deprecated.
        Creates NGramTokenizer with default min and max n-grams.
        Parameters:
        input - Reader holding the input to be tokenized
    • Method Detail

      • incrementToken

        public boolean incrementToken()
                               throws java.io.IOException
        Deprecated.
        Returns the next token in the stream, or null at EOS.
        Specified by:
        incrementToken in class TokenStream
        Returns:
        false for end of stream; true otherwise
        Throws:
        java.io.IOException
      • end

        public void end()
                 throws java.io.IOException
        Deprecated.
        Description copied from class: TokenStream
        This method is called by the consumer after the last token has been consumed, after TokenStream.incrementToken() returned false (using the new TokenStream API). Streams implementing the old API should upgrade to use this feature.

        This method can be used to perform any end-of-stream operations, such as setting the final offset of a stream. The final offset of a stream might differ from the offset of the last token eg in case one or more whitespaces followed after the last token, but a WhitespaceTokenizer was used.

        Additionally any skipped positions (such as those removed by a stopfilter) can be applied to the position increment, or any adjustment of other attributes where the end-of-stream value may be important.

        If you override this method, always call super.end().

        Overrides:
        end in class TokenStream
        Throws:
        java.io.IOException - If an I/O error occurs
      • reset

        public void reset()
                   throws java.io.IOException
        Deprecated.
        Description copied from class: TokenStream
        This method is called by a consumer before it begins consumption using TokenStream.incrementToken().

        Resets this stream to a clean state. Stateful implementations must implement this method so that they can be reused, just as if they had been created fresh.

        If you override this method, always call super.reset(), otherwise some internal state will not be correctly reset (e.g., Tokenizer will throw IllegalStateException on further usage).

        Overrides:
        reset in class Tokenizer
        Throws:
        java.io.IOException