Examples of java.math.BigDecimal.multiply()

java.math.BigDecimal.multiply()
Returns a {@code BigDecimal} whose value is (this ×multiplicand), and whose scale is {@code (this.scale() +multiplicand.scale())}. @param multiplicand value to be multiplied by this {@code BigDecimal}. @return {@code this * multiplicand}

            if (workEfforts != null && orderItem.getString("orderItemTypeId").compareTo("RENTAL_ORDER_ITEM") == 0) {
                Iterator weIter = UtilMisc.toIterator(workEfforts);
                while (weIter != null && weIter.hasNext()) {
                    GenericValue workEffort = (GenericValue) weIter.next();
                    if (workEffort.getString("workEffortId").compareTo(orderItem.getString("orderItemSeqId")) == 0)    {
                        itemTotal = itemTotal.multiply(getWorkEffortRentalQuantity(workEffort)).setScale(scale, rounding);
                        break;
                    }
//                    Debug.log("Item : " + orderItem.getString("orderId") + " / " + orderItem.getString("orderItemSeqId") + " = " + itemTotal, module);
                }
            }

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                    GenericValue WorkOrderItemFulfillment = (GenericValue) iter.next();
                    GenericValue workEffort = null;
                    try {
                        workEffort = WorkOrderItemFulfillment.getRelatedOneCache("WorkEffort");
                    } catch (GenericEntityException e) {}
                    result = result.multiply(getWorkEffortRentalQuantity(workEffort));
                }
            }
        }


        // subtotal also includes non tax and shipping adjustments; tax and shipping will be calculated using this adjusted value

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                        if (termValue != null) {
                            if (termTypeId.equals("FIN_COMM_FIXED")) {
                                commission = commission.add(termValue);
                            } else if (termTypeId.equals("FIN_COMM_VARIABLE")) {
                                // if variable percentage commission, need to divide by 100, because 5% is stored as termValue of 5.0
                                commission = commission.add(termValue.multiply(amount).divide(new BigDecimal("100"), 12, rounding));
                            } else if (termTypeId.equals("FIN_COMM_MIN")) {
                                min = termValue;
                            } else if (termTypeId.equals("FIN_COMM_MAX")) {
                                max = termValue;
                            }

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                        BigDecimal amount = ZERO;
                        if (adj.get("amount") != null) {
                            // pro-rate the amount
                            // set decimals = 100 means we don't round this intermediate value, which is very important
                            amount = adj.getBigDecimal("amount").divide(originalOrderItem.getBigDecimal("quantity"), 100, rounding);
                            amount = amount.multiply(billingQuantity);
                            // Tax needs to be rounded differently from other order adjustments
                            if (adj.getString("orderAdjustmentTypeId").equals("SALES_TAX")) {
                                amount = amount.setScale(taxDecimals, taxRounding);
                            } else {
                                amount = amount.setScale(invoiceTypeDecimals, rounding);

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                    }


                    // prorate the adjustment amount by the returned amount; do not round ratio
                    BigDecimal ratio = quantity.divide(returnItem.getBigDecimal("returnQuantity"), 100, rounding);
                    BigDecimal amount = adjustment.getBigDecimal("amount");
                    amount = amount.multiply(ratio).setScale(decimals, rounding);
                    if (Debug.verboseOn()) {
                        Debug.logVerbose("Creating Invoice Item with amount " + adjustment.getBigDecimal("amount") + " prorated to " + amount
                                + " for return adjustment [" + adjustment.getString("returnAdjustmentId") + "]", module);
                    }

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            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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                    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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    public static BigDecimal getInvoiceItemTotal(GenericValue invoiceItem) {
        BigDecimal quantity = invoiceItem.getBigDecimal("quantity");
        if (quantity == null) {
            quantity = BigDecimal.ONE;
        }
        return quantity.multiply(invoiceItem.getBigDecimal("amount")).setScale(decimals, rounding);
    }


    /** Method to get the taxable invoice item types as a List of invoiceItemTypeIds.  These are identified in Enumeration with enumTypeId TAXABLE_INV_ITM_TY. */
    public static List getTaxableInvoiceItemTypeIds(GenericDelegator delegator) throws GenericEntityException {
        List typeIds = FastList.newInstance();

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                GenericValue paymentApplication = (GenericValue) p.next();
                invoiceApplied = invoiceApplied.add(paymentApplication.getBigDecimal("amountApplied")).setScale(decimals,rounding);
            }
        }
        if (UtilValidate.isNotEmpty(invoiceApplied) && !actualCurrency) {
            invoiceApplied = invoiceApplied.multiply(getInvoiceCurrencyConversionRate(delegator, invoiceId)).setScale(decimals,rounding);
        }
        return invoiceApplied;
    }
    /**
     * Method to return the total amount of an invoice which is applied to a payment

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                    BigDecimal quantityNeeded = amountNeeded.divide(basePrice, generalRounding).setScale(0, BigDecimal.ROUND_CEILING);


                    // reduce amount still needed to qualify for promo (amountNeeded)
                    BigDecimal quantity = cartItem.addPromoQuantityCandidateUse(quantityNeeded, productPromoCond, false);
                    // get pro-rated amount based on discount
                    amountNeeded = amountNeeded.subtract(quantity.multiply(basePrice));
                }
            }


            // Debug.logInfo("Doing Amount Cond with Value after finding applicable cart lines: " + amountNeeded, module);

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