Bridge Pattern and Strategy Pattern
Bridge pattern and strategy pattern have the following in common.
- Both decouple types from a part of implementations (the variation part) using the adapter pattern.
- Both expect variations of implementations.
The differences between them are:
- Bridge pattern expect variations on types (the abstraction part). Strategy pattern has no abstraction on types.
- The implementations for the bridge pattern have to consider variations of types; the implementations for the strategy pattern are independent of types. The implementations for the strategy pattern are normally common algorithms or business ruless.
- Clients decide which type and implementation to use in the bridge pattern; both clients and types can decide which implementation to use in the strategy pattern.
- Bridge pattern is a structural pattern; Strategy pattern is a behavioral pattern.
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