Examples of MathContext

com.ibm.icu.math.MathContext
The MathContext immutable class encapsulates the settings understood by the operator methods of the {@link BigDecimal}class (and potentially other classes). Operator methods are those that effect an operation on a number or a pair of numbers.
The settings, which are not base-dependent, comprise:
1. digits: the number of digits (precision) to be used for an operation
2. form: the form of any exponent that results from the operation
3. lostDigits: whether checking for lost digits is enabled
4. roundingMode: the algorithm to be used for rounding.
When provided, a MathContext object supplies the settings for an operation directly.
When MathContext.DEFAULT is provided for a MathContext parameter then the default settings are used (9, SCIENTIFIC, false, ROUND_HALF_UP).
In the BigDecimal class, all methods which accept a MathContext object defaults) also have a version of the method which does not accept a MathContext parameter. These versions carry out unlimited precision fixed point arithmetic (as though the settings were (0, PLAIN, false, ROUND_HALF_UP).
The instance variables are shared with default access (so they are directly accessible to the BigDecimal class), but must never be changed.
The rounding mode constants have the same names and values as the constants of the same name in java.math.BigDecimal, to maintain compatibility with earlier versions of BigDecimal. @see BigDecimal @author Mike Cowlishaw @stable ICU 2.0
java.math.MathContext
Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the {@link BigDecimal} class.
The base-independent settings are:
1. {@code precision}: the number of digits to be used for an operation; results are rounded to this precision
2. {@code roundingMode}: a {@link RoundingMode} object which specifies the algorithm to beused for rounding.
@see BigDecimal @see RoundingMode @author Mike Cowlishaw @author Joseph D. Darcy @since 1.5

Examples of java.math.MathContext

                    BigDecimal amountApplied = paymentApplication.getBigDecimal("amountApplied");
                    // check currency invoice and if different convert amount applied for display
                    if (actual.equals(Boolean.FALSE) && paymentApplication.get("invoiceId") != null && payment.get("actualCurrencyAmount") != null && payment.get("actualCurrencyUomId") != null) {
                        GenericValue invoice = paymentApplication.getRelatedOne("Invoice");
                        if (payment.getString("actualCurrencyUomId").equals(invoice.getString("currencyUomId"))) {
                               amountApplied = amountApplied.multiply(payment.getBigDecimal("amount")).divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100));
                        }
                    }
                    paymentApplied = paymentApplied.add(amountApplied).setScale(decimals,rounding);
                }
            }

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Examples of java.math.MathContext

            this.replacement = replacement;
            BigDecimal valueBig = BigDecimal.valueOf(value);
            BigDecimal baseBig = BigDecimal.valueOf(base);
            BigDecimal factorBig = BigDecimal.valueOf(factor);
            for (int prec = 0; prec < 14; prec++) {
                addApprox(baseBig.round(new MathContext(prec, RoundingMode.FLOOR)).multiply(factorBig));
                addApprox(baseBig.round(new MathContext(prec, RoundingMode.CEILING)).multiply(factorBig));
                addApprox(valueBig.round(new MathContext(prec, RoundingMode.FLOOR)));
                addApprox(valueBig.round(new MathContext(prec, RoundingMode.CEILING)));
            }
        }

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Examples of java.math.MathContext

            List<GenericValue> acctgTransEntries = invoice.getRelated("AcctgTrans");
            if (UtilValidate.isNotEmpty(acctgTransEntries)) {
                GenericValue acctgTransEntry = (acctgTransEntries.get(0)).getRelated("AcctgTransEntry").get(0);
                BigDecimal origAmount = acctgTransEntry.getBigDecimal("origAmount");
                if (origAmount.compareTo(ZERO) == 1) {
                    conversionRate = acctgTransEntry.getBigDecimal("amount").divide(acctgTransEntry.getBigDecimal("origAmount"), new MathContext(100)).setScale(decimals,rounding);
                }
            }
            // check if a payment is applied and use the currency conversion from there
            if (UtilValidate.isEmpty(conversionRate)) {
                List<GenericValue> paymentAppls = invoice.getRelated("PaymentApplication");
                for (GenericValue paymentAppl : paymentAppls) {
                    GenericValue payment = paymentAppl.getRelatedOne("Payment");
                    if (UtilValidate.isNotEmpty(payment.getBigDecimal("actualCurrencyAmount"))) {
                        if (UtilValidate.isEmpty(conversionRate)) {
                            conversionRate = payment.getBigDecimal("amount").divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100)).setScale(decimals,rounding);
                        } else {
                            conversionRate = conversionRate.add(payment.getBigDecimal("amount").divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100))).divide(new BigDecimal("2"),new MathContext(100)).setScale(decimals,rounding);
                        }
                    }
                }
            }
            // use the dated conversion entity
            if (UtilValidate.isEmpty(conversionRate)) {
                List<GenericValue> rates = EntityUtil.filterByDate(delegator.findByAnd("UomConversionDated", UtilMisc.toMap("uomIdTo", invoice.getString("currencyUomId"), "uomId", otherCurrencyUomId)), invoice.getTimestamp("invoiceDate"));
                if (UtilValidate.isNotEmpty(rates)) {
                    conversionRate = (BigDecimal.ONE).divide((rates.get(0)).getBigDecimal("conversionFactor"), new MathContext(100)).setScale(decimals,rounding);
                } else {
                    Debug.logError("Could not find conversionrate for invoice: " + invoice.getString("invoiceId"), module);
                    return new BigDecimal("1");
                }
            }

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Examples of java.math.MathContext

    {
        if (!isFinite(a) || !isFinite(b)) {
            return Double.compare(a, b);
        }


        MathContext context = new MathContext(5);
        BigDecimal x = new BigDecimal(a).round(context);
        BigDecimal y = new BigDecimal(b).round(context);
        return x.compareTo(y);
    }

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Examples of java.math.MathContext

            if (paymentApplication.get("paymentId") != null) {
                GenericValue payment = paymentApplication.getRelatedOne("Payment");
                if (paymentApplication.get("invoiceId") != null && payment.get("actualCurrencyAmount") != null && payment.get("actualCurrencyUomId") != null) {
                    GenericValue invoice = paymentApplication.getRelatedOne("Invoice");
                    if (payment.getString("actualCurrencyUomId").equals(invoice.getString("currencyUomId"))) {
                           appliedAmount = appliedAmount.multiply(payment.getBigDecimal("amount")).divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100));
                    }
                }
            }
        } catch (GenericEntityException e) {
            Debug.logError(e, "Problem getting Payment", module);

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Examples of java.math.MathContext

                    BigDecimal amountApplied = paymentApplication.getBigDecimal("amountApplied");
                    // check currency invoice and if different convert amount applied for display
                    if (actual.equals(Boolean.FALSE) && paymentApplication.get("invoiceId") != null && payment.get("actualCurrencyAmount") != null && payment.get("actualCurrencyUomId") != null) {
                        GenericValue invoice = paymentApplication.getRelatedOne("Invoice");
                        if (payment.getString("actualCurrencyUomId").equals(invoice.getString("currencyUomId"))) {
                               amountApplied = amountApplied.multiply(payment.getBigDecimal("amount")).divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100));
                        }
                    }
                    paymentApplied = paymentApplied.add(amountApplied).setScale(decimals,rounding);
                }
            }

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Examples of java.math.MathContext

        try {
            // check if the invoice is posted and get the conversion from there
            List acctgTransEntries = invoice.getRelated("AcctgTrans");
            if (UtilValidate.isNotEmpty(acctgTransEntries)) {
                GenericValue acctgTransEntry = ((GenericValue) acctgTransEntries.get(0)).getRelated("AcctgTransEntry").get(0);
                conversionRate = acctgTransEntry.getBigDecimal("amount").divide(acctgTransEntry.getBigDecimal("origAmount"), new MathContext(100)).setScale(decimals,rounding);
            }
            // check if a payment is applied and use the currency conversion from there
            if (UtilValidate.isEmpty(conversionRate)) {
                List paymentAppls = invoice.getRelated("PaymentApplication");
                Iterator ii = paymentAppls.iterator();
                while (ii.hasNext()) {
                    GenericValue paymentAppl = (GenericValue) ii.next();
                    GenericValue payment = paymentAppl.getRelatedOne("Payment");
                    if (UtilValidate.isNotEmpty(payment.getBigDecimal("actualCurrencyAmount"))) {
                        if (UtilValidate.isEmpty(conversionRate)) {
                            conversionRate = payment.getBigDecimal("amount").divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100)).setScale(decimals,rounding);
                        } else {
                            conversionRate = conversionRate.add(payment.getBigDecimal("amount").divide(payment.getBigDecimal("actualCurrencyAmount"),new MathContext(100))).divide(new BigDecimal("2"),new MathContext(100)).setScale(decimals,rounding);
                        }
                    }
                }
            }
            // use the dated conversion entity
            if (UtilValidate.isEmpty(conversionRate)) {
                List rates = EntityUtil.filterByDate(delegator.findByAnd("UomConversionDated", UtilMisc.toMap("uomIdTo", invoice.getString("currencyUomId"), "uomId", otherCurrencyUomId)), invoice.getTimestamp("invoiceDate"));
                if (UtilValidate.isNotEmpty(rates)) {
                    conversionRate = (BigDecimal.ONE).divide(((GenericValue) rates.get(0)).getBigDecimal("conversionFactor"), new MathContext(100)).setScale(decimals,rounding);
                } else {
                    Debug.logError("Could not find conversionrate for invoice: " + invoice.getString("invoiceId"), module);
                    return new BigDecimal("1");
                }
            }

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Examples of java.math.MathContext

                while (quantEntries.hasNext()) {
                    Map.Entry entry = (Map.Entry) quantEntries.next();
                    Object prodId = entry.getKey();
                    BigDecimal quantity = (BigDecimal) entry.getValue();
                    Integer occs = (Integer) productOccurances.get(prodId);
                    BigDecimal nqint = quantity.divide(new BigDecimal(occs), new MathContext(10));


                    if (nqint.compareTo(BigDecimal.ONE) < 0) nqint = BigDecimal.ONE;
                    productQuantities.put(prodId, nqint);
                }

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Examples of java.math.MathContext

        permitsLastChanged = System.currentTimeMillis();
        permits.setRate(calculateRequestLimit());
    }


    public double getRequestLimit() {
        return new BigDecimal(permits.getRate(), new MathContext(2, RoundingMode.HALF_UP)).doubleValue();
    }

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Examples of java.math.MathContext

        System.out.println("testSerializeBigDecimal");


        double random_double = rnd.nextDouble();
        System.out.println("random_double = " + random_double + " (value will be truncated to 4 digits in this test)");


        src_test.setBd(new BigDecimal(random_double, new MathContext(4)));


        try {
            jsonSerializer.writeObject(src_test, writer);
        } catch (Exception e) {
            e.printStackTrace();

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