Proxy Design Pattern in Java | Lazy Loading, Access Control & Remote Objects

Published: 21 June 2026
on channel: The Curious Coder

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Design Pattern #8: Proxy Design Pattern

The Proxy Design Pattern is a structural design pattern that acts as a controlled placeholder for another object — and much like Pattern Matching in modern Java, it's all about clean, type-safe access to what lies behind the interface. In this proxy pattern tutorial, we go beyond theory and implement three real-world variants of the java proxy hands-on in IntelliJ IDEA.

We start with a concise introduction to the proxy design pattern itself — what it is, when to reach for it in system design, and how it fits into design patterns in software engineering. From there, we dive straight into implementation: the Virtual Proxy Design Pattern for lazy loading, the Protection Proxy Design Pattern for access control, and the Remote Proxy Design Pattern for representing objects across address spaces. Each one is a working proxy design pattern example you can adapt to your own projects.

🔍 What You'll Learn:

• How the proxy pattern solves real structural problems in design patterns software engineering

• Virtual, Protection, and Remote proxy — three distinct proxy pattern in java implementations

• Why a simple flag can't replace the proxy design pattern java approach — we deliberately break the pattern mid-video and rebuild it

• The core philosophy behind design patterns explained — why they exist, what problems they solve, and why the pattern always beats the hack

Whether you're preparing for design pattern interview questions or building production-grade software, understanding proxy pattern design is essential. This is part of the ongoing design patterns tutorial playlist covering creational, structural, and behavioral design patterns with real code on IntelliJ.

00:00 : Proxy Design Pattern Introduction
00:31 : Virtual Proxy Design Pattern Implementation
10:58 : Importance of Design Pattern
13:01 : Protection Proxy Design Pattern Implementation
17:58 : Remote Proxy Design Pattern Implementation

To access the code: Clone below mentioned repository and checkout to branch : proxy-pattern
Github Link: https://github.com/TheCuriousCoder-sg...

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