Book Image

Software Architecture with Spring 5.0

By : René Enríquez, Alberto Salazar
Book Image

Software Architecture with Spring 5.0

By: René Enríquez, Alberto Salazar

Overview of this book

Spring 5 and its ecosystem can be used to build robust architectures effectively. Software architecture is the underlying piece that helps us accomplish our business goals whilst supporting the features that a product demands. This book explains in detail how to choose the right architecture and apply best practices during your software development cycle to avoid technical debt and support every business requirement. Choosing the right architecture model to support your business requirements is one of the key decisions you need to take when a new product is being created from scratch or is being refactored to support new business demands. This book gives you insights into the most common architectural models and guides you when and where they can be used. During this journey, you’ll see cutting-edge technologies surrounding the Spring products, and understand how to use agile techniques such as DevOps and continuous delivery to take your software to production effectively. By the end of this book, you’ll not only know the ins and outs of Spring, but also be able to make critical design decisions that surpass your clients’ expectations.
Table of Contents (21 chapters)
Title Page
Copyright and Credits
Packt Upsell

Chapter 6. Event-Driven Architectures

Event-driven architectures (EDA) are based on commands and events that are created each time an application changes state. According to Martin Fowler, there are four patterns that are used to build software systems using this approach. 

In this chapter, we are going to learn about these four patterns and look at how messaging can be tied together to take full advantage of a programming model based on messages. Even when it's not a requirement, messaging can be used to add more capabilities into applications that are built using an event-driven architectural style. 

In this chapter, we will look at the following topics:

  • Underlying concepts and key aspects associated with event-driven architectures:
    • Commands
    • Events
  • Common patterns used within event-driven architectures:
    • Event notification
    • Event-carried state transfer
    • Event sourcing
    • CQRS