Presentation given on Jun 2007 at Symbion Health and on Feb 2009 at Melbourne Patterns Group http://htxt.it/UXZe

1. Factory Method Pattern Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.

5. Factory Method Pattern Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.

7. Factory Method Structure

10. Examples

11. Example 2