Fig.9. Pricing Component Adapter -succinct Speciication 4 Related Work 3.1 Dynamic, Non-invasive F Ramework Deployment Fig. 5. Pricing Framework Class Model

adapter AbstractPricingScheme { abstract Quote extends LineItemParty { ItemParty item () { return product(); }Quote extends LineItemParty { ItemParty item () { return product(); } CustomerParty customer() { return customer(); } } Customer extends CustomerParty {} HWProduct extends ItemParty { ChargerParty charge() { return tax(); } } Tax extends ChargerParty { public double cost(double unitPrice, ItemParty item) { return taxCharge(unitPrice, (HWProduct) item); } } } adapter RegPricingScheme extends AbstractPricingScheme { Quote extends AbstractPricingScheme.Quote { PricerParty pricer () { return product(); } } HWProduct extends PricerParty { public double basicPrice(ItemParty item) { return regPrice();} public double discount(CustomerParty cust, ItemParty item) { return regDiscount( (Customer)cust ); } } } //example main program that applies the adapter to an application object public class Client { static public void main(String[] args) { Quote q = new Quote(); System.out.println(((RegPricingScheme)q).price()); } Fig. 9. Pricing Component Adapter Succinct Speci cation