StrataForge

Current selection

2 of 3 selected

You can now review the differences across the comparison table below.

Criteria	structuralFlyweightView pattern	behavioralIteratorView pattern
Basics
Category	structural	behavioral
Summary	—	—
Intent	Use sharing to support large numbers of fine-grained objects efficiently by separating shared intrinsic state from per-object extrinsic state.	Provide a way to access elements of an aggregate sequentially while hiding the underlying representation.
Decision factors
Problem	A system creates a large number of similar objects, but storing all of their state separately uses too much memory.	A collection needs to be traversed without exposing how it is stored internally.
Tradeoffs	Adds complexity because state must be split into shared and unshared parts Can be harder to understand when many objects depend on an external context	Can add extra classes and abstraction for simple collections May be unnecessary when built-in language iteration is already enough
Practical fit
Languages	typescript java python angular react react-native csharp dotnet	typescript java python angular react react-native csharp dotnet
Platforms	Web Backend Mobile UI kits Cross-platform systems	Web Backend Mobile UI kits Cross-platform systems
Integration notes	Flyweight is useful when thousands or millions of similar objects need to be represented efficiently, such as trees, glyphs, tiles, or UI tokens.	Iterator is useful for pagination, custom collections, ordered traversal, and any case where clients should not know the internal data structure.