Static Class Structure

• Client
  • Requires ProductA and ProductB objects.
  • Refers to the AbstractFactory interface to create ProductA and ProductB objects and is independent of how the objects are created (which concrete classes are instantiated).
  • Maintains a reference (factory) to an AbstractFactory object.
• AbstractFactory
  • Defines an interface for creating a family of product objects.
• Factory1,…
  • Implement the AbstractFactory interface by creating and returning the objects.

Dynamic Object Collaboration

• In this sample scenario, a Client object delegates creating product objects to a Factory1 object.
  Let's assume that the Client is configured with a Factory1 object.
• The interaction starts with the Client that calls createProductA() on the installed Factory1 object.
• Factory1 creates a ProductA1 object and returns (a reference to) it to the Client.
• Thereafter, the Client calls createProductB() on Factory1.
• Factory1 creates a ProductB1 object and returns it to the Client.
• The Client can then use the ProductA1 and ProductB1 objects as required.
• See also Sample Code / Example 1.