/**
* Sets <code>value</code> as the attribute value for Quantity.
*
* @param value value to set the Quantity
*/
public void setQuantity(Integer value) {
Integer oldQuantity = getQuantity();
setAttributeInternal(QUANTITY, value);
// Recalculate the order total if the quantity changes.
SOrdImpl order = getSOrd();
// First of all remove the the old line item total from the order total
BigDecimal orderTotal =
order.getTotal().subtract(getPrice().multiply(new BigDecimal(oldQuantity)));
// Now add the new line item total
order.setTotal(orderTotal.add(getPrice().multiply(new BigDecimal(value))));
}
/**
* Sets <code>value</code> as the attribute value for QuantityShipped.
*
* @param value value to set the QuantityShipped
*/
public void setQuantityShipped(Integer value) {
// When ever this attribute is changed, the order total has to be updated as this is based
// on the line item, which is the price * quantityShipped.
// Get the quantityShipped before you change it
Integer oldQuantity = getQuantityShipped();
setAttributeInternal(QUANTITYSHIPPED, value);
// Recalculate the order total if the price changes.
SOrdImpl order = (SOrdImpl) getSOrd();
// First of all remove the the old line item total from the order total
BigDecimal orderTotal =
order.getTotal().subtract(getPrice().multiply(new BigDecimal(oldQuantity)));
// Now add the new line item total
order.setTotal(orderTotal.add(getPrice().multiply(new BigDecimal(value))));
}
/**
* Sets <code>value</code> as the attribute value for Price.
*
* @param value value to set the Price
*/
public void setPrice(BigDecimal value) {
// When ever this attribute is changed, the order total has to be updated as this is based
// on the line item, which is the price * quantity.
// Get the price before you change it
BigDecimal oldPrice = getPrice();
// When adding a new line you won't have an oldPrice
if (oldPrice == null) {
oldPrice = new BigDecimal(0);
}
setAttributeInternal(PRICE, value);
// Recalculate the order total if the price changes.
SOrdImpl order = getSOrd();
// First of all remove the the old line item total from the order total
BigDecimal orderTotal =
order.getTotal().subtract(new BigDecimal(getQuantity()).multiply(oldPrice));
// Now add the new line item total
order.setTotal(orderTotal.add(new BigDecimal(getQuantity()).multiply(value)));
}
