@Override
            public String getQueryBoostFuzzyContentExpansions() {
                return "10";
            }

            @Override
            public Integer getQueryBoostFuzzyContentExpansionsAsInteger() {
                return 10;
            }

            @Override
            public String getQueryDefaultLanguages() {
                return "en,ja";
            }

                    .fuzziness(Fuzziness.build(fessConfig.getQueryBoostFuzzyContentFuzziness()))
                    .maxExpansions(fessConfig.getQueryBoostFuzzyContentExpansionsAsInteger()));
        }
        return defaultQuery;
    }

    /**
     * Converts a site field query to a prefix query for site filtering.
     *
     * @param fessConfig the Fess configuration