Class NGramTokenFilter


  • public final class NGramTokenFilter
    extends TokenFilter
    Generates n-grams of the given size(s). This token filter is implemented using Apache Lucene.
    • Constructor Detail

      • NGramTokenFilter

        public NGramTokenFilter​(String name)
        Constructor of NGramTokenFilter.
        Parameters:
        name - The name of the token filter. It must only contain letters, digits, spaces, dashes or underscores, can only start and end with alphanumeric characters, and is limited to 128 characters.
    • Method Detail

      • getMinGram

        public Integer getMinGram()
        Get the minGram property: The minimum n-gram length. Default is 1. Must be less than the value of maxGram.
        Returns:
        the minGram value.
      • setMinGram

        public NGramTokenFilter setMinGram​(Integer minGram)
        Set the minGram property: The minimum n-gram length. Default is 1. Must be less than the value of maxGram.
        Parameters:
        minGram - the minGram value to set.
        Returns:
        the NGramTokenFilter object itself.
      • getMaxGram

        public Integer getMaxGram()
        Get the maxGram property: The maximum n-gram length. Default is 2.
        Returns:
        the maxGram value.
      • setMaxGram

        public NGramTokenFilter setMaxGram​(Integer maxGram)
        Set the maxGram property: The maximum n-gram length. Default is 2.
        Parameters:
        maxGram - the maxGram value to set.
        Returns:
        the NGramTokenFilter object itself.