Design Patterns design recommended
Strategy Pattern
The Strategy Pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable. Enables switching algorithms at runtime without modifying client code.
- Difficulty
- intermediate
- Read time
- 1 min read
- Version
- v1.0.0
- Confidence
- established
- Last updated
Quick Reference
Strategy Pattern: Define algorithm interface, implement variations as separate classes, inject strategy into context. Eliminates switch statements on type. Use for: pricing rules, validation, sorting, compression, payment methods. Select strategy at runtime based on config or user input.
Use When
- Multiple algorithms for same task
- Need to swap algorithms at runtime
- Avoiding large switch/if-else blocks
- Different behavior based on configuration
Skip When
- Only one algorithm implementation exists
- Algorithms never change at runtime
- Simple boolean flags suffice
Strategy Pattern
The Strategy Pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable. Enables switching algorithms at runtime without modifying client code.