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Object-Oriented Application Frameworks

Object-Oriented Application Frameworks. CS 3331 Fall 2009. What’s a Framework?. A set of cooperating (abstract) classes and interface that: Represent reusable designs of software systems in a particular application domain,

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Object-Oriented Application Frameworks

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  1. Object-Oriented Application Frameworks CS 3331 Fall 2009

  2. What’s a Framework? • A set of cooperating (abstract) classes and interface that: • Represent reusable designs of software systems in a particular application domain, • Provide semi-complete applications that can be specialized to produce custom applications, and • Defines conventions for extending the abstract classes, implementing the interfaces, and allowing their instances to interact with one another

  3. Examples • Small frameworks • Applets, AnimationApplet, DBAnimationApplet, etc. • GUI frameworks • AWT and Swing • MFC • Distributed programming frameworks • RMI • J2EE • CORBA

  4. Why Frameworks? • Main goal is: • To support reuse of design and implementations in particular application domains • Benefits • Quick and easy application development • Reliable application (i.e., high confidence) • Standardized applications

  5. Characteristics • Extensibility • Inversion of control • Design patterns as building blocks

  6. Questions • How frameworks differ from conventional OO libraries? • How frameworks differ from design patterns?

  7. Frameworks To Be Discussed • GUI frameworks (AWT and Swing) • Collection classes • Input and output classes

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