Book Image

Hands-On Design Patterns with Java

By : Dr. Edward Lavieri
2 (1)
Book Image

Hands-On Design Patterns with Java

2 (1)
By: Dr. Edward Lavieri

Overview of this book

Java design patterns are reusable and proven solutions to software design problems. This book covers over 60 battle-tested design patterns used by developers to create functional, reusable, and flexible software. Hands-On Design Patterns with Java starts with an introduction to the Unified Modeling Language (UML), and delves into class and object diagrams with the help of detailed examples. You'll study concepts and approaches to object-oriented programming (OOP) and OOP design patterns to build robust applications. As you advance, you'll explore the categories of GOF design patterns, such as behavioral, creational, and structural, that help you improve code readability and enable large-scale reuse of software. You’ll also discover how to work effectively with microservices and serverless architectures by using cloud design patterns, each of which is thoroughly explained and accompanied by real-world programming solutions. By the end of the book, you’ll be able to speed up your software development process using the right design patterns, and you’ll be comfortable working on scalable and maintainable projects of any size.
Table of Contents (15 chapters)
Free Chapter
Section 1: Introducing Design Patterns
Section 2: Original Design Patterns
Section 3: New Design Patterns

Understanding the master–slave pattern

The master–slave architectural pattern is used to improve system reliability and performance by dividing work between the master and slave components. Each component has distinct responsibilities. All slave components have identical or at least similar work, and that work must be defined prior to runtime. This pattern is not a divide-and-conquer approach to architecture; rather, it is one where the slaves' work is predefined and must be coordinated. The goal of the master–slave architectural pattern is to improve software efficiency.

The following diagram provides an overview of how the master–slave architectural pattern works. There are one or more Clients that can submit requests or initiate events with the Master:

Master–slave pattern

The master performs the following functions:

  • Maintains a list...