Böcker av Davi Vieira

DESCRIPTIONJava continues to be a key technology for building powerful applications in today's fast-changing tech world. This book helps you connect theory with practice, teaching you the skills to create real-world Java projects. With a clear learning path, you will learn the tools and techniques needed to tackle complex software development challenges with confidence.This book, inspired by real-world Java projects, starts with Java fundamentals, covering core APIs, modern features, database handling, and automated testing. It explores frameworks like Spring Boot, Quarkus, and Jakarta EE for enterprise cloud-native applications. Employ container technologies like Docker and Kubernetes for scalable deployments. To tackle production challenges, the book will look deeply into monitoring and observability, helping developers understand application performance under unexpected conditions. It concludes with maintainability issues, introducing architectural concepts like domain-driven design (DDD), layered architecture, and hexagonal architecture, offering a roadmap for creating scalable and maintainable Java applications.By the end of this book, you will feel confident as a Java developer, ready to handle real-world challenges and work on modern software projects. You will have a strong understanding of Java basics, modern tools, and best practices, preparing you for a successful career in Java development.WHAT YOU WILL LEARN¿ Efficient application of core Java API capabilities.¿ Modern Java development with features like virtual threads, sealed classes, and records.¿ Understanding of the Spring Boot, Quarkus, and Jakarta EE frameworks.¿ Monitoring and observability with Prometheus, Grafana, and Elasticsearch.¿ Using DDD, layered architecture, and hexagonal architecture to improve maintainability.WHO THIS BOOK IS FORThis book is ideal for aspiring and intermediate Java developers, including students, software engineers, and anyone seeking to enhance their Java skills. Prior experience with basic programming concepts and a foundational understanding of Java are recommended.

Learn to build robust, resilient, and highly maintainable cloud-native Java applications with hexagonal architecture and QuarkusKey Features:Use hexagonal architecture to increase maintainability and reduce technical debtLearn how to build systems that are easy to change and understandLeverage Quarkus to create modern cloud-native applicationsPurchase of the print or Kindle book includes a free PDF eBookBook Description:We live in a fast-evolving world with new technologies emerging every day, where enterprises are constantly changing in an unending quest to be more profitable. So, the question arises - how to develop software capable of handling a high level of unpredictability. With this question in mind, this book explores how the hexagonal architecture can help build robust, change-tolerable, maintainable, and cloud-native applications that can meet the needs of enterprises seeking to increase their profits while dealing with uncertainties. This book starts by uncovering the secrets of the hexagonal architecture's building blocks, such as entities, use cases, ports, and adapters. You'll learn how to assemble business code in the domain hexagon, create features with ports and use cases in the application hexagon, and make your software compatible with different technologies by employing adapters in the framework hexagon. In this new edition, you'll learn about the differences between a hexagonal and layered architecture and how to apply SOLID principles while developing a hexagonal system based on a real-world scenario. Finally, you'll get to grips with using Quarkus to turn your hexagonal application into a cloud-native system.By the end of this book, you'll be able to develop robust, flexible, and maintainable systems that will stand the test of time.What You Will Learn:Apply SOLID principles to the hexagonal architectureAssemble business rules algorithms using the specified design patternCombine domain-driven design techniques with hexagonal principles to create powerful domain modelsEmploy adapters to enable system compatibility with various protocols such as REST, gRPC, and WebSocketCreate a module and package structure based on hexagonal principlesUse Java modules to enforce dependency inversion and ensure software component isolationImplement Quarkus DI to manage the life cycle of input and output portsWho this book is for:This book is for software architects and Java developers looking to improve code maintainability and enhance productivity with an architecture that allows changes in technology without compromising business logic. Intermediate knowledge of the Java programming language and familiarity with Jakarta EE will help you to get the most out of this book.

A practical guide for software architects and Java developers to build cloud-native hexagonal applications using Java and Quarkus to create systems that are easier to refactor, scale, and maintainKey Features:Learn techniques to decouple business and technology code in an applicationApply hexagonal architecture principles to produce more organized, coherent, and maintainable softwareMinimize technical debts and tackle complexities derived from multiple teams dealing with the same code baseBook Description:Hexagonal architecture enhances developers' productivity by decoupling business code from technology code, making the software more change-tolerant, and allowing it to evolve and incorporate new technologies without the need for significant refactoring. By adhering to hexagonal principles, you can structure your software in a way that reduces the effort required to understand and maintain the code.This book starts with an in-depth analysis of hexagonal architecture's building blocks, such as entities, use cases, ports, and adapters. You'll learn how to assemble business code in the Domain hexagon, create features by using ports and use cases in the Application hexagon, and make your software compatible with different technologies by employing adapters in the Framework hexagon. Moving on, you'll get your hands dirty developing a system based on a real-world scenario applying all the hexagonal architecture's building blocks. By creating a hexagonal system, you'll also understand how you can use Java modules to reinforce dependency inversion and ensure the isolation of each hexagon in the architecture. Finally, you'll get to grips with using Quarkus to turn your hexagonal application into a cloud-native system.By the end of this hexagonal architecture book, you'll be able to bring order and sanity to the development of complex and long-lasting applications.What You Will Learn:Find out how to assemble business rules algorithms using the specification design patternCombine domain-driven design techniques with hexagonal principles to create powerful domain modelsEmploy adapters to make the system support different protocols such as REST, gRPC, and WebSocketCreate a module and package structure based on hexagonal principlesUse Java modules to enforce dependency inversion and ensure isolation between software componentsImplement Quarkus DI to manage the life cycle of input and output portsWho this book is for:This book is for software architects and Java developers who want to improve code maintainability and enhance productivity with an architecture that allows changes in technology without compromising business logic, which is precisely what hexagonal architecture does. Intermediate knowledge of the Java programming language and familiarity with Jakarta EE will help you to get the most out of this book.