Class KeywordRepeatFilter

  • All Implemented Interfaces:
    Closeable, AutoCloseable

    public final class KeywordRepeatFilter
    extends TokenFilter
    This TokenFilterĀ emits each incoming token twice once as keyword and once non-keyword, in other words once with KeywordAttribute.setKeyword(boolean) set to true and once set to false. This is useful if used with a stem filter that respects the KeywordAttribute to index the stemmed and the un-stemmed version of a term into the same field.