Analysis

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Abstract FactoryAdapterBridgeBuilderChain of ResponsibilityCommandCompositeDecoratorFacadeFactory MethodFlyweightInterpreterIteratorMediatorMementoObserverPrototypeProxySingletonStateStrategyTemplate MethodVisitor

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Analysis

Pattern comparison

Reviewing 3 patterns.

Criteria
creationalAbstract FactoryView pattern
structuralAdapterView pattern
behavioralChain of ResponsibilityView pattern
Basics
Categorycreationalstructuralbehavioral
SummaryProvide an interface for creating families of related objects without specifying their concrete classes.Convert the interface of a class or module into another interface clients expect.Pass a request through a sequence of handlers until one handles it or the chain ends.
IntentProvide an interface for creating families of related objects without specifying their concrete classes.Allow incompatible interfaces to work together without changing the consuming code.Pass requests along a chain of handlers until one of them handles the request or the request reaches the end of the chain.
Decision factors
ProblemClient code needs to create families of related objects, but hardcoding concrete classes makes the code rigid and hard to swap.A client needs to talk to a legacy class or external service whose interface does not match the rest of the codebase.A request must pass through multiple possible handlers, but the sender should not need to know which handler will process it.
Tradeoffs
  • Adds an extra abstraction layer.
  • Can overcomplicate simple object creation.
  • Makes family-wide swapping and consistency much easier.
  • Adds an extra layer of indirection.
  • Can hide useful vendor-specific capabilities if overused.
  • Keeps integration code isolated from core domain logic.
  • Requests can become harder to trace because control flows through multiple handlers.
  • A long chain may add overhead if many handlers are checked on every request.
  • It keeps handler logic isolated and easier to extend.
Practical fit
Languages
  • typescript
  • java
  • python
  • react
  • angular
  • csharp
  • dotnet
  • typescript
  • java
  • python
  • go
  • csharp
  • dotnet
  • react
  • angular
  • react-native
  • typescript
  • java
  • python
  • angular
  • react
  • react-native
  • csharp
  • dotnet
Platforms
  • applications
  • ui systems
  • integration layers
  • applications
  • apis
  • service layers
  • integrations
  • frontend
  • backend
  • integration
Integration notesAbstract Factory is especially useful when your app must produce matching sets of related objects for a theme, provider, platform, or pipeline.Adapters are useful when exposing a stable boundary over a legacy API, vendor SDK, or payload format mismatch.Chain of Responsibility is useful for validation pipelines, support routing, approval flows, and any system where requests may be processed by different handlers in sequence.