Structural

Proxy

Provides a surrogate or placeholder for another object.

Lazy loadingAccess controlRemote objects

Understanding Proxy

The Proxy pattern provides a surrogate or placeholder for another object to control access to it. It's useful for lazy loading, access control, logging, caching, and more.

How It Works

Client

Proxy

Cache/Auth/Log

Real Server

Direct access (no control)

Direct Access

Client directly accesses the real object.

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Basic Implementation

Caching proxy for server requests:

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Real-World Example: Database Protection Proxy

Access control and audit logging for database queries:

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