Lecture #26 - Design Strategy Examples

Web Resources:

Office Hours: Instructor & TAs

Content:

1. Syllabus
   Describes topics to be covered, reading material for you to digest before coming to class, and due dates for the assigned projects.
2. Recruiting: SIG will be here on Monday, April 23rd, recruiting for software developers. They are a financial services company. They have an informational meeting in Schine 231, from 4:00pm to 5:30pm. You may come to the second class late if you wish to attend that session.
3. Project #4 - Directory File Synchronizer
   Project4HelpSp08
   C++/CLI Winform with ownerdraw ListBox to get items with color cues
   C++/CLI Form with child thread
   Demonstrates use of Form Invoke to allow child thread to send data to ListBox.
   C++/CLI Form with Stream
   Shows how to open file streams and read files.
   Win32Tools
   Demonstrates reading files in blocks of bytes, consistent with SocketCommunicator
4. Midterm Makeup
   
5. Template Metaprogramming
   
Design Strategies
6. Chalk talk about design strategies
   • Language strategies: deep copy vs. shallow reference
   • Basic C++ Strategies: encapsulate, substitute deriveds, parameterize, mixin
   • Strategies for change: bind to abstraction through interfaces, object factories, and DLL packages
   • Strategies for flexibility: provide plug-in architecture through pluggable factory and interfaces
   • Other strategies for extension: veneer and bolt-in wrappers, functor-based template policies
   • Strategies for notification: command pattern
   • Strategies for sharing: member data, static members
   • Performance strategies: object pooling, copy on write, when possible, pass and return references, lazy evaluation, caching
   • Robustness: use exceptions - catch as close to throw as practical, each class takes responsibility for resource allocation, deallocation, and error handling
7. Smart Pointers
   
8. Veneers and Boltins
   
9. Common C++ Problems
   
10. Fragile Designs
    
11. Managed C++
    
12. Design Rules
    Design rules and idioms that transcend Object Oriented Design.