This video wraps up the discussion of abstract factory for National credit union. We explain the role of the 'provider' code and how it is used to by the client. Lastly, we cover how the program is executed through the client which is able to generate the correct factory it needs based on input provided.
- [Voiceover] Now that we have all our abstractions…and concretions in place, specifically the…abstract factories and its concretions…and the abstract products and its concretions,…we're ready to create the logic that determines…which factory needs to be returned…dependent on a particular request.…And that's where the provider comes into play,…so if we look in our provider's project,…you'll see a file called credit union factory.…We can open that up and when we expand the code there,…we'll see that we have logic similar to what we've…done with the factory method.…
This again here is the essence of this factory pattern,…this abstract factory pattern,…and it's because we have our if L's condition that…determines which factory is going to be returned,…and that's dependent on whether or not we pass in…the term citi or national in the string.…Moving on to our client, to execute the code,…let's step through what's going on over here,…I simply create a list of account numbers,…one of them will be for citi,…one of them will be for national,…
Author
Released
5/31/2016In this course, developer and technologist Reynald Adolphe explains the purpose and effective use of eight design patterns, including six Gang of Four design patterns and two .NET patterns. Gang of Four patterns fall under three categories: structural, creational, and behavioral. Reynald helps you learn about select patterns from each category. He describes each pattern and demonstrates how programmers can leverage them in real-world applications.
- Factory Method
- Abstract Factory
- Singleton pattern
- Decorator pattern
- Iterator pattern
- Observer pattern
- Repository pattern
- Unit of Work pattern
Skill Level Intermediate
Duration
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Introduction
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Welcome1m 28s
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1. Overview
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Design patterns explained1m 20s
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The need for design patterns1m 31s
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Design pattern categories1m 35s
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2. Factory Method
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Factory pattern overview1m 36s
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Code the Factory pattern4m 16s
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3. Abstract Factory
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4. Singleton Pattern
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Singleton pattern overview1m 44s
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Thread safety2m 42s
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5. Decorator Pattern
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Decorator pattern overview2m 54s
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Concrete Component code2m 37s
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Concrete Decorator code2m 42s
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6. Iterator Pattern
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Aggregate setup2m 7s
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Iterator setup and execution4m 53s
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7. Observer Pattern
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Observer pattern overview2m 23s
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Concrete Subject code3m 23s
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8. Repository Pattern
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MVC Project setup8m 14s
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Create a Generic Repository2m 16s
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9. Unit of Work Pattern
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Convert to Unit of Work3m 53s
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Conclusion
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Next Steps31s
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Video: Abstract Factory provider and client