Diagram Explaining the Flyweight Pattern
Flow diagram of flyweight pattern
In this diagram:
- Flyweight Interface defines the methods for accessing and manipulating the intrinsic state. This interface is typically implemented by concrete flyweights.
- Concrete Flyweight represents the shared intrinsic state. It contains a private member (intrinsicState) for storing this shared data. The operation method may use this intrinsic state when necessary.
- Flyweight Factory is responsible for creating and managing flyweight objects. It maintains a collection (e.g., a map) of flyweights, where each flyweight is associated with a unique key. The getFlyweight method ensures that flyweights are shared and reused based on the provided key.
In practice, the Flyweight Factory is responsible for managing the sharing of flyweight objects, ensuring that multiple objects with the same intrinsic state are represented by a single shared instance. This helps minimize memory usage and improve performance, especially when dealing with a large number of similar objects.
Flyweight Pattern | C++ Design Patterns
A flyweight pattern is a structural design pattern used to optimize memory usage and performance when dealing with a large number of objects that share some common characteristics. It achieves this by separating an object’s intrinsic state (shared among multiple objects) from its extrinsic state (unique to each object) and storing the intrinsic state externally, typically within a Flyweight factory. This pattern is particularly useful when you need to create a significant number of similar objects and want to minimize the memory footprint.
Important Topics for the Flyweight Pattern in C++ Design Patterns
- Problem Statement
- Solution
- Key Components
- Use Cases
- Example
- Diagram Explaining the Flyweight Pattern
- Advantages of Flyweight Pattern in C++ Design Patterns
- Disadvantages of Flyweight Pattern in C++ Design Patterns
- Uses of Flyweight Pattern
Contact Us