
286 VisualAge for Java Version 3: Persistence Builder with GUIs, Servlets, and JSPs
Figure 181 does not show the additional classes that are stored in the
ITSOBANK database, Bank and Policy, because they are not required for the
implementation of ATM bank transactions.
In the current implementation of the persistence builder, and extra class is
required for the m:m relationship between the Card and the Account.We will
discuss this class when we reverse engineer the database.
We will also add some extra properties in the business model. The Account
class implements an oldBalance property that holds the balance before a
deposit or withdraw transaction ...