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20 lines
473 B
Markdown
20 lines
473 B
Markdown
# Strategy
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## Terminology:
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* Context
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* Strategy
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* Concrete Strategy
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## Purpose
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To separate strategies and to enable fast switching between them. Also this pattern is a good alternative to inheritance (instead of having an abstract class that is extended).
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## Examples
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* sorting a list of objects, one strategy by date, the other by id
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* simplify unit testing: e.g. switching between file and in-memory storage
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## UML Diagram
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