Flyweight

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Share common state to reduce memory. Use sharing to support large numbers of fine-grained objects efficiently. Separates intrinsic state (shared) from extrinsic state (context-dependent, passed in by client).

Key Properties

• Intrinsic vs Extrinsic State
• Flyweight Factory
• Object Pooling

Related

• Singleton (one instance, flyweight many shared instances)
• Prototype (copy vs share)

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design-patterns structural flyweight