Professional Java EE Design Patterns

1 A Brief Overview of Design Patterns

WHAT’S IN THIS CHAPTER?            

• An overview of design patterns
• A short history about design patterns and why they are important
• The use of design patterns in the real world
• The history and evolution of Java Enterprise Edition
• The emergence of enterprise patterns
• How these design patterns have evolved in the enterprise environment
• Why and how patterns become anti-patterns

This book is aimed at bridging the gap between the traditional implementation of design patterns in the Java SE environment and their implementation in Java EE.

If you are new to design patterns, this book will help you get up to speed quickly as each chapter introduces the design pattern in a simple-to-understand way with plenty of working code examples.

If you are already familiar with design patterns and their implementation but are not familiar with their implementation in the Java EE environment, this book is perfect for you. Each chapter bridges the gap between the traditional implementation and the new, often easier, implementation in Java EE.

If you are an expert in Java, this book will act as a solid reference to Java EE and Java SE implementations of the most common design patterns.

This book focuses on the most common Java EE design patterns and demonstrates how they are implemented in the Java EE universe. Each chapter introduces a different pattern by explaining its purpose and discussing its use. Then it demonstrates how the pattern is implemented in ...