Analysis

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Abstract FactoryAdapterBridgeBuilderChain of ResponsibilityCommandCompositeDecoratorFacadeFactory MethodFlyweightInterpreterIteratorMediatorMementoObserverPrototypeProxySingletonStateStrategyTemplate MethodVisitor

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Analysis

Pattern comparison

Reviewing 3 patterns.

Criteria
structuralBridgeView pattern
creationalBuilderView pattern
creationalFactory MethodView pattern
Basics
Categorystructuralcreationalcreational
SummarySeparate an abstraction from its implementation so the two can vary independently.Construct a complex object step by step so the same construction process can create different representations.—
IntentDecouple abstractions from implementations so they can evolve independently.Separate the construction of a complex object from its final representation.Define a creation method behind a common interface so specialized creators can decide which concrete product to instantiate without changing the surrounding workflow.
Decision factors
ProblemWhen an abstraction is tightly coupled to its implementation, changing one side forces changes in the other and makes the system harder to evolve.Constructing complex objects directly can make required steps, optional values, and validation hard to manage.A workflow needs to create one of several related concrete objects, but constructing them directly in client code spreads creation logic and tightly couples the caller to specific implementations.
Tradeoffs
  • Adds an extra layer of indirection.
  • Can increase the number of moving parts.
  • Makes abstractions and implementations easier to evolve independently.
  • Adds more classes or steps to the construction process.
  • Can be overkill for simple objects.
  • Improves clarity when object construction is complex or incremental.
  • Adds extra indirection and more types compared with direct construction
  • Can feel unnecessarily abstract when object creation is simple and unlikely to vary
Practical fit
Languages
  • typescript
  • java
  • python
  • angular
  • react
  • react-native
  • csharp
  • dotnet
  • go
  • typescript
  • python
  • java
  • react
  • angular
  • go
  • csharp
  • dotnet
  • typescript
  • java
  • python
  • angular
  • react
  • react-native
  • csharp
  • dotnet
Platforms
  • web
  • backend
  • mobile
  • integration
  • ui
  • frontend
  • backend
  • integration
  • Applications
  • APIs
  • Frameworks
  • Service layers
Integration notesBridge is useful when you want one stable abstraction while swapping implementations for providers, environments, or device targets.Builder is most useful when construction must happen in controlled steps and the final object has many optional or ordered parts.Factory Method is useful when framework hooks, integrations, or environment-specific workflows need to create interchangeable implementations behind a stable contract.