Home / cs-notes / Design / Design Patterns / Summary / Adapter vs Decorator

Intent

• Adapter
  • Interface Conversion
• Decorator
  • Functional enhancement or weakening

Target

• Adapter
  • between irrelevant classes
• Decorator
  • between sibling classes

Situation

• Adapter
  • Whenever
• Decorator
  • Maintain old modules

Extensible

• Adapter
  • Easy to add or remove
• Decorator
  • Always be careful

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