* comment: Boost value for title field in queries.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not decimal.
     */
    java.math.BigDecimal getQueryBoostTitleAsDecimal();

    /**
     * Get the value for the key 'query.boost.title.lang'. <br>
     * The value is, e.g. 1.0 <br>

23DC..23E7    ; valid                  ;      ; NV8    # 5.0  TOP PARENTHESIS..ELECTRICAL INTERSECTION
23E8          ; valid                  ;      ; NV8    # 5.2  DECIMAL EXPONENT SYMBOL
23E9..23F3    ; valid                  ;      ; NV8    # 6.0  BLACK RIGHT-POINTING DOUBLE TRIANGLE..HOURGLASS WITH FLOWING SAND