Tangram::Tour is a guided tour.
INTRODUCTION
In this tour, we add persistence to a simple Person design.
A Person is either a NaturalPerson or a LegalPerson. Persons (in general) have a collection of addresses.
An address consists in a type (a string) and a city (also a string).
NaturalPerson - a subclass of Person - represents persons of flesh and blood. NaturalPersons have a name and a firstName (both strings) and an age (an integer). NaturalPersons sometimes have a partner (another NaturalPerson) and even children (a collection of NaturalPersons).
LegalPerson - another subclass of Person - represents companies and other entities that the law regards as 'persons'. A LegalPerson has a name (a string) and a manager (a NaturalPerson).
All this is expressed in the following UML diagram:
+---------------------+ +--------------+
| Person | | Address |
| { abstract } |1-->-*|--------------|
|---------------------| | kind: string |
+---------------------+ | city: string |
| +--------------+
|
+--------------A--------------+
| |
+-------------------+ +---------------+
+--*| NaturalPerson | | LegalPerson |
| |-------------------|manager |---------------|
V | firstName: string |1------+
Requirements:
· Perl
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Requirements:
· Perl
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