Examples of java.math.BigDecimal.scale()

java.math.BigDecimal.scale()
Returns the scale of this {@code BigDecimal}. If zero or positive, the scale is the number of digits to the right of the decimal point. If negative, the unscaled value of the number is multiplied by ten to the power of the negation of the scale. For example, a scale of {@code -3} means the unscaledvalue is multiplied by 1000. @return the scale of this {@code BigDecimal}.

    ** calculates the scale according to actual values.  Beetle 3901
    */
    result.setBigDecimal(dividendBigDecimal.divide(
                  divisorBigDecimal,
                  scale > -1 ? scale :
                  Math.max((dividendBigDecimal.scale() + 
                      SQLDecimal.getWholeDigits(divisorBigDecimal) +
                      1), 
                    NumberDataValue.MIN_DECIMAL_DIVIDE_SCALE),
                  BigDecimal.ROUND_DOWN));

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            }
            enumCheck(d, enumDecimal);
        }


        if ( (fFacetsDefined & DatatypeValidator.FACET_FRACTIONDIGITS)!=0 ) {
            if ( d.scale() > fFractionDigits )
                throw new InvalidDatatypeValueException(
                                                       getErrorString(DatatypeMessageProvider.FRACTION_EXCEEDED,
                                                                      DatatypeMessageProvider.MSG_NONE,
                                                                      new Object[] { content}));
        }

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                                                       getErrorString(DatatypeMessageProvider.FRACTION_EXCEEDED,
                                                                      DatatypeMessageProvider.MSG_NONE,
                                                                      new Object[] { content}));
        }
        if ( (fFacetsDefined & DatatypeValidator.FACET_TOTALDIGITS)!=0 ) {
            int totalDigits = d.movePointRight(d.scale()).toString().length() -
                              ((d.signum() < 0) ? 1 : 0); // account for minus sign
            if ( totalDigits > fTotalDigits )
                throw new InvalidDatatypeValueException(
                                                       getErrorString(DatatypeMessageProvider.TOTALDIGITS_EXCEEDED,
                                                                      DatatypeMessageProvider.MSG_NONE,

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     * represented as a Rational.
     */
    public Rational(BigDecimal value)
    {
        BigDecimal trimmedValue = value.stripTrailingZeros();
        BigInteger denominator = BigInteger.TEN.pow(trimmedValue.scale());
        BigInteger numerator = trimmedValue.unscaledValue();
        BigInteger gcd = numerator.gcd(denominator);
        this.numerator = numerator.divide(gcd).longValue();
        this.denominator = denominator.divide(gcd).longValue();
    }

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         *     Byte 6 ~ N: the normalized decimal part with sign.
         *
         * Get the scale and the unscaled value of this BigDecimal..
         */
        BigDecimal valNoTrailZeros = val.stripTrailingZeros();
        int scale = valNoTrailZeros.scale();
        BigInteger unscaledVal = valNoTrailZeros.unscaledValue();
        int sign = valNoTrailZeros.signum();
        
        /* Then do the normalization. */
        String unscaledValStr = unscaledVal.abs().toString();

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                    request.put("item_" + lineNumber + "_productName", item.getString("description"));
                }
                // get the quantity..
                BigDecimal quantity = item.getBigDecimal("quantity");
                // test quantity if INT pass as is; if not pass as 1
                if (quantity.scale() > 0) {
                    request.put("item_" + lineNumber + "_quantity", "1");
                } else {
                    request.put("", Integer.toString(quantity.intValue()));
                }
                // set the amount to 0.0000 -- we will send a total too.

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        output.writeVarInt(NULL, true);
        return;
      }
      BigDecimal value = (BigDecimal)object;
      bigIntegerSerializer.write(kryo, output, value.unscaledValue());
      output.writeInt(value.scale(), false);
    }


    public BigDecimal read (Kryo kryo, Input input, Class<BigDecimal> type) {
      BigInteger unscaledValue = bigIntegerSerializer.read(kryo, input, null);
      if (unscaledValue == null) return null;

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        Number unwrapped;


        if (n instanceof LazilyParsedNumber) {
            LazilyParsedNumber lpn = (LazilyParsedNumber) n;
            BigDecimal bigDecimal = new BigDecimal(lpn.toString());
            if (bigDecimal.scale() <= 0) {
                if (bigDecimal.compareTo(new BigDecimal(Integer.MAX_VALUE)) <= 0) {
                    unwrapped = bigDecimal.intValue();
                } else {
                    unwrapped = bigDecimal.longValue();
                }

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            throw DbException.get(ErrorCode.DIVISION_BY_ZERO_1, getSQL());
        }
        BigDecimal bd = value.divide(dec.value, value.scale() + DIVIDE_SCALE_ADD, BigDecimal.ROUND_HALF_DOWN);
        if (bd.signum() == 0) {
            bd = BigDecimal.ZERO;
        } else if (bd.scale() > 0) {
            if (!bd.unscaledValue().testBit(0)) {
                String s = bd.toString();
                int i = s.length() - 1;
                while (i >= 0 && s.charAt(i) == '0') {
                    i--;

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            if (BigDecimal.ZERO.equals(x)) {
                writeByte((byte) DECIMAL_0_1);
            } else if (BigDecimal.ONE.equals(x)) {
                writeByte((byte) (DECIMAL_0_1 + 1));
            } else {
                int scale = x.scale();
                BigInteger b = x.unscaledValue();
                int bits = b.bitLength();
                if (bits <= 63) {
                    if (scale == 0) {
                        writeByte((byte) DECIMAL_SMALL_0);

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