Examples of java.math.BigDecimal.precision()

java.math.BigDecimal.precision()
Returns the precision of this {@code BigDecimal}. (The precision is the number of digits in the unscaled value.)
The precision of a zero value is 1. @return the precision of this {@code BigDecimal}. @since 1.5

        }
        // enforce scale 12 to make the precision check right
        if (bd.scale() < kDefaultScale) {
            bd = bd.setScale(kDefaultScale);
        }
        if (bd.precision() > 38) {
            throw new RuntimeException(
                    "Decimal " + bd + " has more than " + kDefaultPrecision + " digits of precision.");
        }
        return bd;
    }

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            return null;
        }
        final BigDecimal bd = new BigDecimal(
                new BigInteger(decimalBytes),
                        kDefaultScale, context);
        if (bd.precision() > 38) {
            throw new RuntimeException("Decimal " + bd + " has more than 38 digits of precision.");
        }
        return bd;
    }

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        BigDecimal bigRight = toBigDecimal(right);
        try {
            return bigLeft.divide(bigRight);
        } catch (ArithmeticException e) {
            // set a DEFAULT precision if otherwise non-terminating
            int precision = Math.max(bigLeft.precision(), bigRight.precision()) + DIVISION_EXTRA_PRECISION;
            BigDecimal result = bigLeft.divide(bigRight, new MathContext(precision));
            int scale = Math.max(Math.max(bigLeft.scale(), bigRight.scale()), DIVISION_MIN_SCALE);
            if (result.scale() > scale) result = result.setScale(scale, BigDecimal.ROUND_HALF_UP);
            return result;
        }

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     */
    public static String formatAmountConversionRate(double convRate) throws ISOException {
        if (convRate == 0)
            return null;
        BigDecimal cr = new BigDecimal(convRate);
        int x = 7 - cr.precision() + cr.scale();
        String bds = cr.movePointRight(cr.scale()).toString();
        if (x > 9)
            bds = ISOUtil.zeropad(bds, bds.length() + x - 9);
        String ret = ISOUtil.zeropadRight(bds, 7);
        return Math.min(9, x) + ISOUtil.takeFirstN(ret, 7);

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        }
      } catch (final NumberFormatException e) {
        throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_ILLEGAL_CONTENT.addContent(value), e);
      }


      if (bigDecimalValue.precision() - bigDecimalValue.scale() > MAX_DIGITS
          || bigDecimalValue.scale() > MAX_DIGITS) {
        throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_ILLEGAL_CONTENT.addContent(value));
      }


      final int digits = bigDecimalValue.scale() >= 0 ?

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          || bigDecimalValue.scale() > MAX_DIGITS) {
        throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_ILLEGAL_CONTENT.addContent(value));
      }


      final int digits = bigDecimalValue.scale() >= 0 ?
          Math.max(bigDecimalValue.precision(), bigDecimalValue.scale()) :
          bigDecimalValue.precision() - bigDecimalValue.scale();
      if (facets == null
          || (facets.getPrecision() == null || facets.getPrecision() >= digits)
          && (facets.getScale() == null || facets.getScale() >= bigDecimalValue.scale())) {
        result = bigDecimalValue.toPlainString();

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        throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_ILLEGAL_CONTENT.addContent(value));
      }


      final int digits = bigDecimalValue.scale() >= 0 ?
          Math.max(bigDecimalValue.precision(), bigDecimalValue.scale()) :
          bigDecimalValue.precision() - bigDecimalValue.scale();
      if (facets == null
          || (facets.getPrecision() == null || facets.getPrecision() >= digits)
          && (facets.getScale() == null || facets.getScale() >= bigDecimalValue.scale())) {
        result = bigDecimalValue.toPlainString();
      } else {

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  private boolean checkPrecisionAndScale(double numero, int precision, int scale){
    if (numero != 0.0) {
      BigDecimal bd = new BigDecimal(String.valueOf(numero));
      bd = bd.setScale(scale, BigDecimal.ROUND_HALF_DOWN);
      if (bd.precision() > precision)
        return false;
    }
    return true;
  }

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    }
    else {
      bigNum = new BigDecimal( num.toString() ).stripTrailingZeros();
    }


    int integerPartLength = bigNum.precision() - bigNum.scale();
    int fractionPartLength = bigNum.scale() < 0 ? 0 : bigNum.scale();


    return ( maxIntegerLength >= integerPartLength && maxFractionLength >= fractionPartLength );
  }

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    BigDecimal bigNum = getBigDecimalValue( charSequence );
    if ( bigNum == null ) {
      return false;
    }


    int integerPartLength = bigNum.precision() - bigNum.scale();
    int fractionPartLength = bigNum.scale() < 0 ? 0 : bigNum.scale();


    return ( maxIntegerLength >= integerPartLength && maxFractionLength >= fractionPartLength );
  }

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