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Extensibility in application

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Abhishek Sur
Abhishek Sur

Extensibility with .NET 4.0 using MEF.

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Extensibility in Applicationusing MEF By Abhishek Sur Website: www.abhisheksur.com Email : contact@abhisheksur.com Twitter : @abhi2434
Agenda
What is Extensibility
Extensiblity Extensibility is an ability to design an application in such a manner so that 3rd party vendor can come along and customize it. Extensibility does not require the application to be redeployed. Extensible applications are flexible on client needs. Examples : Microsoft Office, Skype, World Warcraft etc.
Bertrand Meyer’s Open Close Principle
Benefits of Extensible application Reusability Modularizing Loose Coupling Greater Momentum Support for 3rd party vendors Feeling of Ownership
Problems of Extensible application Development process is more complex. Architecture should be thought before actual development begins. Security More error prone
Demo Extensibility in your Application
Managed Extensibility Framework
How to MEF
Export
Import
Compose
MEF Architecture Catalog CustomExportProvider CatalogExportProvider AggregatingExportProvider CompositionContainer Part Part Part Export Import Export Import Export Import
MEF Catalog Discovers and maintain extensions CompositionContainer Coordinate creations and satisfy dependencies ComposablePart Are Imports and Exports that are composable to the Container Support for LAZY Support for Dynamic Recomposition
Demo Adding MEF to the application
Finally Visual Studio is rich with MEF components They export functionality that your code might need. They import functionality that your code might offer. Your extension can export: IWPFTextViewMarginProvider ITaggerProvider IMouseProcessorProvider ICompletionSourceProvider There are lots more…….
References MEF Article http://tinyurl.com/MEFWORLD MEF Source http://tinyurl.com/MEFSOURCE MEF Guide http://tinyurl.com/mefguide MEF Blogs http://tinyurl.com/mefBlogs MEF Discussions http://tinyurl.com/mefDiscussions
Abhishek Sur, MVP (Client App Dev) www.abhisheksur.com Email: contact@abhisheksur.com Twitter : @abhi2434 Thank you.

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Extensibility in application

  • 1. Extensibility in Applicationusing MEF By Abhishek Sur Website: www.abhisheksur.com Email : contact@abhisheksur.com Twitter : @abhi2434
  • 4. Extensiblity Extensibility is an ability to design an application in such a manner so that 3rd party vendor can come along and customize it. Extensibility does not require the application to be redeployed. Extensible applications are flexible on client needs. Examples : Microsoft Office, Skype, World Warcraft etc.
  • 5. Bertrand Meyer’s Open Close Principle
  • 6. Benefits of Extensible application Reusability Modularizing Loose Coupling Greater Momentum Support for 3rd party vendors Feeling of Ownership
  • 7. Problems of Extensible application Development process is more complex. Architecture should be thought before actual development begins. Security More error prone
  • 8. Demo Extensibility in your Application
  • 14. MEF Architecture Catalog CustomExportProvider CatalogExportProvider AggregatingExportProvider CompositionContainer Part Part Part Export Import Export Import Export Import
  • 15. MEF Catalog Discovers and maintain extensions CompositionContainer Coordinate creations and satisfy dependencies ComposablePart Are Imports and Exports that are composable to the Container Support for LAZY Support for Dynamic Recomposition
  • 16. Demo Adding MEF to the application
  • 17. Finally Visual Studio is rich with MEF components They export functionality that your code might need. They import functionality that your code might offer. Your extension can export: IWPFTextViewMarginProvider ITaggerProvider IMouseProcessorProvider ICompletionSourceProvider There are lots more…….
  • 18. References MEF Article http://tinyurl.com/MEFWORLD MEF Source http://tinyurl.com/MEFSOURCE MEF Guide http://tinyurl.com/mefguide MEF Blogs http://tinyurl.com/mefBlogs MEF Discussions http://tinyurl.com/mefDiscussions
  • 19. Abhishek Sur, MVP (Client App Dev) www.abhisheksur.com Email: contact@abhisheksur.com Twitter : @abhi2434 Thank you.