Examples of java.math.BigDecimal.signum()

java.math.BigDecimal.signum()
Returns the signum function of this {@code BigDecimal}. @return -1, 0, or 1 as the value of this {@code BigDecimal} is negative, zero, or positive.

        boolean valid = true;


        if (text.length() > 0) {
            try {
                BigDecimal numericAmount = new BigDecimal(text);
                valid = (numericAmount.scale() <= 2 && numericAmount.signum() >= 0);
            } catch (NumberFormatException ex) {
                valid = false;
            }
        }

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                // apply these payments to the invoice if they have any remaining amount to apply
                Iterator cpi = currentPayments.iterator();
                while (cpi.hasNext()) {
                    GenericValue payment = (GenericValue) cpi.next();
                    BigDecimal notApplied = PaymentWorker.getPaymentNotApplied(payment);
                    if (notApplied.signum() > 0) {
                        Map appl = new HashMap();
                        appl.put("paymentId", payment.get("paymentId"));
                        appl.put("invoiceId", invoiceId);
                        appl.put("billingAccountId", billingAccountId);
                        appl.put("amountApplied", notApplied);

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        String invoiceIdIn = (String) context.get("invoiceId");
        String invoiceItemSeqIdIn = (String) context.get("invoiceItemSeqId");
        BigDecimal amountTotal = InvoiceWorker.getInvoiceTotal(delegator, invoiceIdIn);
        // never use equals for BigDecimal - use either signum or compareTo
        if (amountTotal.signum() == 0) {
            Debug.logWarning("Invoice [" + invoiceIdIn + "] has an amount total of [" + amountTotal + "], so no commission invoice will be created", module);
            return ServiceUtil.returnSuccess(UtilProperties.getMessage(resource,"AccountingInvoiceCommissionZeroInvoiceAmount",locale));
        }


        try {

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            // make sure the divisor is not 0 to avoid NaN problems; just leave the amount as 0 and skip it in essense
            if (divisor.signum() != 0) {
                // multiply first then divide to avoid rounding errors
                amount = baseAmount.multiply(multiplier).divide(divisor, decimals, rounding);
            }
            if (amount.signum() != 0) {
                Map createInvoiceItemContext = FastMap.newInstance();
                createInvoiceItemContext.put("invoiceId", invoiceId);
                createInvoiceItemContext.put("invoiceItemSeqId", invoiceItemSeqId);
                createInvoiceItemContext.put("invoiceItemTypeId", getInvoiceItemType(delegator, adj.getString("orderAdjustmentTypeId"), null, invoiceTypeId, "INVOICE_ADJ"));
                createInvoiceItemContext.put("description", adj.get("description"));

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            // make sure the divisor is not 0 to avoid NaN problems; just leave the amount as 0 and skip it in essense
            if (divisor.signum() != 0) {
                // multiply first then divide to avoid rounding errors
                amount = percent.multiply(divisor);
            }
            if (amount.signum() != 0) {
                Map createInvoiceItemContext = FastMap.newInstance();
                createInvoiceItemContext.put("invoiceId", invoiceId);
                createInvoiceItemContext.put("invoiceItemSeqId", invoiceItemSeqId);
                createInvoiceItemContext.put("invoiceItemTypeId", getInvoiceItemType(delegator, adj.getString("orderAdjustmentTypeId"), null, invoiceTypeId, "INVOICE_ADJ"));
                createInvoiceItemContext.put("description", adj.get("description"));

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                amountAppliedMax = toPaymentApplyAvailable;
            }


            if (paymentApplicationId == null) {
                // only check for new application records, update on existing records is checked in the paymentApplication section
                if (toPaymentApplyAvailable.signum() == 0) {
                    errorMessageList.add(UtilProperties.getMessage(resource, "AccountingPaymentAlreadyApplied",UtilMisc.toMap("paymentId",toPaymentId), locale));
                } else {
                    // check here for too much application if a new record is
                    // added (paymentApplicationId == null)
                    if (amountApplied.compareTo(toPaymentApplyAvailable) > 0) {

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                // adjust the amountAppliedMax value if required....
                if (invoiceApplyAvailable.compareTo(amountAppliedMax) < 0) {
                    amountAppliedMax = invoiceApplyAvailable;
                }


                if (invoiceTotal.signum() == 0) {
                    errorMessageList.add(UtilProperties.getMessage(resource,"AccountingInvoiceTotalZero",UtilMisc.toMap("invoiceId",invoiceId),locale));
                } else if (paymentApplicationId == null) {
                    // only check for new records here...updates are checked in the paymentApplication section
                    if (invoiceApplyAvailable.signum() == 0) {
                        errorMessageList.add(UtilProperties.getMessage(resource,"AccountingInvoiceCompletelyApplied",UtilMisc.toMap("invoiceId",invoiceId),locale));

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            // Determine the difference between existing and new tax adjustment totals, if any
            BigDecimal orderTaxDifference = totalNewOrderTax.subtract(totalExistingOrderTax).setScale(taxDecimals, taxRounding);


            // If the total has changed, create an OrderAdjustment to reflect the fact
            if (orderTaxDifference.signum() != 0) {
                Map createOrderAdjContext = new HashMap();
                createOrderAdjContext.put("orderAdjustmentTypeId", "SALES_TAX");
                createOrderAdjContext.put("orderId", orderId);
                createOrderAdjContext.put("orderItemSeqId", "_NA_");
                createOrderAdjContext.put("shipGroupSeqId", "_NA_");

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                                                                      new Object[] { "'" + content + "'" + " with fractionDigits = '"+ d.scale() +"'"
                                                                          , "'" + fFractionDigits + "'"}));
        }
        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,
                                                                      new Object[] { "'" + content + "'" + " with totalDigits = '"+ totalDigits +"'"

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        if (text.length() > 0) {
            ParsePosition parsePosition = new ParsePosition(0);
            BigDecimal numericAmount = (BigDecimal) FORMAT.parse(text, parsePosition);
            valid = (numericAmount != null &&
                numericAmount.scale() <= 2 &&
                numericAmount.signum() >= 0 &&
                parsePosition.getErrorIndex() == -1 &&
                parsePosition.getIndex() == text.length());
        }


        return valid;

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