Class TokenFilterFactory

    • Constructor Detail

      • TokenFilterFactory

        protected TokenFilterFactory()
        Default ctor for compatibility with SPI
      • TokenFilterFactory

        protected TokenFilterFactory​(Map<String,​String> args)
        Initialize this factory via a set of key-value pairs.
    • Method Detail

      • lookupClass

        public static Class<? extends TokenFilterFactory> lookupClass​(String name)
        looks up a tokenfilter class by name from context classpath
      • availableTokenFilters

        public static Set<String> availableTokenFilters()
        returns a list of all available tokenfilter names from context classpath
      • findSPIName

        public static String findSPIName​(Class<? extends TokenFilterFactory> serviceClass)
        looks up a SPI name for the specified token filter factory
      • reloadTokenFilters

        public static void reloadTokenFilters​(ClassLoader classloader)
        Reloads the factory list from the given ClassLoader. Changes to the factories are visible after the method ends, all iterators (availableTokenFilters(),...) stay consistent.

        NOTE: Only new factories are added, existing ones are never removed or replaced.

        This method is expensive and should only be called for discovery of new factories on the given classpath/classloader!

      • create

        public abstract TokenStream create​(TokenStream input)
        Transform the specified input TokenStream
      • normalize

        public TokenStream normalize​(TokenStream input)
        Normalize the specified input TokenStream While the default implementation returns input unchanged, filters that should be applied at normalization time can delegate to create method.