public class KuromojiTokenizerFactory extends AbstractTokenizerFactory {

    private static final String USER_DICT_PATH_OPTION = "user_dictionary";
    private static final String USER_DICT_RULES_OPTION = "user_dictionary_rules";
    private static final String NBEST_COST = "nbest_cost";
    private static final String NBEST_EXAMPLES = "nbest_examples";

    private final UserDictionary userDictionary;
    private final Mode mode;