An overview of the Composite Pattern form the GoF book.

1. Structural Patterns - Composite
Melbourne Patterns Group July 1 2009
Chris Bushell

2. Intent
Allow clients to treat primitive objects and
containers in the same way

3. Graphics Example
• Line
• Rectangle
• Text
etc.

4. Graphics Example Continued
Graphic
Line
Rectangle
Picture
Line
Rectangle

5. Recursive Composition

6. Puzzle Example

7. Participants
• Component
• Leaf
• Composite

8. Participants

9. Code