*/
    protected DefaultQueryBuilder createDefaultQueryBuilder() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        if ("dismax".equals(fessConfig.getQueryDefaultQueryType())) {
            final DisMaxQueryBuilder disMaxQuery = QueryBuilders.disMaxQuery();
            disMaxQuery.tieBreaker(fessConfig.getQueryDismaxTieBreakerAsDecimal().floatValue());

     * The value is, e.g. bool <br>
     * comment: Default query type.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryDefaultQueryType();

    /**
     * Get the value for the key 'query.dismax.tie_breaker'. <br>
     * The value is, e.g. 0.1 <br>
     * comment: Tie breaker value for dismax queries.