Choose Decorator when you need to:

Problem Statement

Explanation

Decorator wraps an object to add cross-cutting behavior like caching, logging, or rate limiting. You stack them flexibly. It follows open–closed: extend behavior without touching the wrapped type.

Code Solution

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CacheRepo = new CachingDecorator(new SqlRepo());

Practice Sets

This question appears in the following practice sets:

Software Design Patterns

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Choose Decorator when you need to:

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

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More from System Design

Master Interviews Anywhere, Anytime

Choose Decorator when you need to:

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which statement best describes the Single Responsibility Principle?

Open–Closed Principle encourages what practice when adding features?

High-Level Design (HLD) typically focuses on which artifacts?

Which UML diagram best captures interactions over time between components?

Which pairing describes a healthy design goal?

More from System Design

Master Interviews
Anywhere, Anytime