AddressBook QBeans JDO Sample Application Analysis
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Application Requirements (cont'd) The application requirements include the following 9 business rules that must be applied to the Business Object instances:
    Addresses
  1. Maintian parent (Person) reference
    		2.
  2. Prevent delete of default Address
    		3.
    Persons
  3. Prevent delete if addreses are still assigned
    		4.
  4. Field level validation on valid telephone extension number
    		5.
  5. Field level validation of default address to ensure data integrity - the address chosen must belong to the person
    		6.
    Countries
  6. Prevent delete of a Country that is referenced in an address
    		7.
    Provinces / States  
  7. Maintian parent (Country) reference
    		8.
  8. Prevent delete of Province / State that is referenced in an address
    		9.
    Salutations
  9. Prevent delete of Salutation that is referenced in a Person
    		10.


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