SwissChecklist

Checklist: Programming Design Patterns - Strategy Pattern - Learning

Use this checklist to learn the Strategy Pattern

  • Background to Programming Patterns and This Pattern

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  • To learn this pattern, ensure you know what programming patterns are

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  • Understand what the Strategy Pattern is for

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  • Examples using the Strategy Pattern

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  • Changing algorithm - for example the encryption you'll use - with configuration

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    This is an important real-live example: you never know, when an encryption method is cracked. So if your code has any kind of encryption, it would be good to do this in a way that can change the algorithm, simply by changing the configuration information. There is a good article in MSDN Magazine on this (todo: add).

  • Changing algorithms at runtime

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    Many systems will also dynamically want to apply different "strategies" at runtime. Instead of developing a never-ending if-then-else block, and extending it with every additional wish, it's cleaner to use the strategy pattern and accessing the right strategy dynamically.

  • Business Rules

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    An ERP-Software might have many standard components, but each customer will want other things to happen in certain situations. For example, customer A) might want the creation of a bill logged, while customer B) might want the creation of a bill to automatically generate a delivery receipt as well. Instead of programming all possible options, you can create a standardized ERP, which has Business Rules implemented with the Strategy Pattern.

  • First Steps using the Strategy Pattern (todo)

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  • Learning the Strategy Pattern

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  • Using the Strategy Pattern

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    From now on, whevener you need the strategy pattern, you can use this checkist.

  • Using the Strategy Pattern

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  • New Step

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