atg.projects.b2cstore
Class ItemDiscountMultiplierCalculator

java.lang.Object
  atg.nucleus.logging.VariableArgumentApplicationLoggingImpl
      atg.nucleus.GenericService
          atg.commerce.pricing.DiscountCalculatorService
              atg.commerce.pricing.ItemDiscountCalculator
                  atg.projects.b2cstore.ItemDiscountMultiplierCalculator

All Implemented Interfaces:

ItemPricingCalculator, atg.naming.AbsoluteNameable, NameContextBindingListener, NameContextElement, atg.naming.NameContextParentable, NameResolver, AdminableService, atg.nucleus.Configured, ApplicationLogging, atg.nucleus.logging.ApplicationLoggingSender, atg.nucleus.logging.TraceApplicationLogging, VariableArgumentApplicationLogging, ComponentNameResolver, Service, ServiceListener, java.util.EventListener

public class ItemDiscountMultiplierCalculator
extends ItemDiscountCalculator

This calculator knows how to adjust the amount of a discount by factor N, where N is the adjuster amount as defined in a PricingModel. That is, if an item originally costs $20, and has had $5 taken off of the price for whatever reason, then the new price is $15. The ItemDiscountMultiplierCalculator takes this amount and multiplies it by the number N. So, if the number N is 2, then the new discount amount would be $10 and the new price would also be $10.

The parent class, ItemDiscountCalculator is used to determine which items should qualify for getting a double discount and then the overriden adjust method defined in this class applies determines the new adjustment.

See Also:

DiscountCalculatorService

Field Summary

static java.lang.String

CLASS_VERSION Class version string

Fields inherited from class atg.commerce.pricing.ItemDiscountCalculator

EXTRA_PARAM_QUALIFIERSERVICE

Fields inherited from class atg.commerce.pricing.DiscountCalculatorService

AMOUNT_INCREASE_TYPE, AMOUNT_OFF_TYPE, FIXED_PRICE_TYPE, ILLEGAL_TYPE, mPromotionTools, PERCENT_OFF_TYPE

Fields inherited from class atg.nucleus.GenericService

SERVICE_INFO_KEY

Fields inherited from interface atg.nucleus.logging.TraceApplicationLogging

DEFAULT_LOG_TRACE_STATUS

Fields inherited from interface atg.nucleus.logging.ApplicationLogging

DEFAULT_LOG_DEBUG_STATUS, DEFAULT_LOG_ERROR_STATUS, DEFAULT_LOG_INFO_STATUS, DEFAULT_LOG_WARNING_STATUS

Constructor Summary

ItemDiscountMultiplierCalculator()
Empty Constructor

Method Summary

protected double	adjust(double pCurrentPrice, double pDiscountAmount, double pAdjuster, java.lang.String pId) Adjust the price of an item.
double	findAdjustedPrice(DetailedItemPriceInfo pDetailedItemPriceInfo, java.util.List pPriceQuotes, java.util.List pItems, RepositoryItem pPricingModel, RepositoryItem pProfile, java.util.Locale pLocale, Order pOrder, java.util.Map pExtraParameters) Override the findAdjustedPrice to enable us to provide different parameters to the adjust() method of this function.

Methods inherited from class atg.commerce.pricing.ItemDiscountCalculator

determineDiscountNumber, doStartService, findQualifyingItems, getAmountToDiscount, getPricingTools, getRangeComparator, priceDetailedItemPriceInfo, priceEachItem, priceItem, priceItems, priceQualifyingItem, priceQualifyingItems, setPricingTools, setRangeComparator, updateDetailedPriceInfos, updateQualifyingDetails, updateQuantityAsQualifier, validateQualifierService

Methods inherited from class atg.commerce.pricing.DiscountCalculatorService

adjust, adjustAmount, getAdjuster, getDiscountType, getDiscountType, getPricingModelProperties, getPromotionTools, getQualifierService, getQualifierService, isNegativeAmountException, setNegativeAmountException, setPricingModelProperties, setPromotionTools, setQualifierService

Methods inherited from class atg.nucleus.GenericService

addLogListener, createAdminServlet, doStopService, getAbsoluteName, getAdminServlet, getAdminServletOutputStreamEncoding, getLoggingForVlogging, getLogListenerCount, getLogListeners, getName, getNameContext, getNucleus, getRoot, getServiceConfiguration, getServiceInfo, isAdminServletUseServletOutputStream, isLoggingDebug, isLoggingError, isLoggingInfo, isLoggingTrace, isLoggingWarning, isRunning, logDebug, logDebug, logDebug, logError, logError, logError, logInfo, logInfo, logInfo, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, nameContextElementBound, nameContextElementUnbound, removeLogListener, reResolveThis, resolveName, resolveName, resolveName, resolveName, sendLogEvent, setAdminServletOutputStreamEncoding, setAdminServletUseServletOutputStream, setLoggingDebug, setLoggingError, setLoggingInfo, setLoggingTrace, setLoggingWarning, setNucleus, setServiceInfo, startService, stopService

Methods inherited from class atg.nucleus.logging.VariableArgumentApplicationLoggingImpl

vlogDebug, vlogDebug, vlogDebug, vlogDebug, vlogDebugTrace, vlogError, vlogError, vlogError, vlogError, vlogInfo, vlogInfo, vlogInfo, vlogInfo, vlogTrace, vlogTrace, vlogTrace, vlogTrace, vlogWarning, vlogWarning, vlogWarning, vlogWarning

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CLASS_VERSION

public static java.lang.String CLASS_VERSION

Class version string

Constructor Detail

ItemDiscountMultiplierCalculator

public ItemDiscountMultiplierCalculator()

Empty Constructor

Method Detail

findAdjustedPrice

public double findAdjustedPrice(DetailedItemPriceInfo pDetailedItemPriceInfo,
                                java.util.List pPriceQuotes,
                                java.util.List pItems,
                                RepositoryItem pPricingModel,
                                RepositoryItem pProfile,
                                java.util.Locale pLocale,
                                Order pOrder,
                                java.util.Map pExtraParameters)
                         throws PricingException

Override the findAdjustedPrice to enable us to provide different parameters to the adjust() method of this function. Specifically, the adjust funcion needs:

• the current cost for this DetailedItemPriceInfo
• the amount the DetailedItemPriceInfo has been discounted
• the adjuster for this calculator
• the id for this item

The amout that the DetailedItemPriceInfo has been discounted thus far is determined by iterating through the List of adjustments and retrieving their amounts.

Overrides:

findAdjustedPrice in class ItemDiscountCalculator

Parameters:

pDetailedItemPriceInfo - the details on the item being priced

pPriceQuotes - list of itemPriceInfo

pItems - list of commerceItems

pPricingModel - pricing model being used to calculate price

pProfile - users profile, not used here

pLocale - users locale, not used here

pOrder - users order, not used here

pExtraParameters - map of extra params, not used here

Returns:

a value of type 'double'

Throws:

PricingException - if an error occurs

adjust

protected double adjust(double pCurrentPrice,
                        double pDiscountAmount,
                        double pAdjuster,
                        java.lang.String pId)
                 throws PricingException

Adjust the price of an item. This method overrides the adjust method by calculating the price of an item in a new manner. It determines a new adjusted price by multiplying the previous adjusted amount by the adjuster amount specified in the PricingModel. This amount is then subtracted from the original price and returned to the calling method.

Parameters:

pCurrentPrice - the current price of the item

pDiscountAmount - the amount the item has been discounted thus far

pAdjuster - the adjuster for this discount

pId - the commerce id of the item

Returns:

a value of type 'double'

Throws:

PricingException - if there was a problem in adjusting the current price