}

            @Override
            public String getQueryBoostTitleLang() {
                return "1.0";
            }

            @Override
            public BigDecimal getQueryBoostTitleLangAsDecimal() {
                return new BigDecimal("1.0");
            }

            @Override
            public String getQueryBoostContentLang() {
                return "0.5";
            }

        getQueryLanguages().ifPresent(langs -> stream(langs).of(stream -> stream.forEach(lang -> {
            defaultQuery.add(
                    builder.apply(fessConfig.getIndexFieldTitle() + "_" + lang, fessConfig.getQueryBoostTitleLangAsDecimal().floatValue()));
            defaultQuery.add(builder.apply(fessConfig.getIndexFieldContent() + "_" + lang,
                    fessConfig.getQueryBoostContentLangAsDecimal().floatValue()));

            public BigDecimal getQueryBoostImportantContentAsDecimal() {
                return new BigDecimal("-1.0"); // Negative boost
            }

            @Override
            public BigDecimal getQueryBoostTitleLangAsDecimal() {
                return new BigDecimal("1.0");
            }

            @Override
            public BigDecimal getQueryBoostContentLangAsDecimal() {
                return new BigDecimal("0.5");