Functional and Reactive Domain Modeling

Debasish Ghosh

ISBN 10: 1617292249 / ISBN 13: 9781617292248

Editore: Manning Publications, United States, New York, 2016

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Functional and Reactive Domain Modeling teaches readers how to think of the domain model in terms of pure functions and how to compose them to build larger abstractions. It begins with the basics of functional programming and gradually progresses to the advanced concepts and patterns needed to implement complex domain models. The book demonstrates how advanced FP patterns like algebraic data types, typeclass based design, and isolation of side-effects can make models compose for readability and verifiability. On the subject of reactive modeling, the book focuses on higher order concurrency patterns like actors and futures. It uses the Akka framework as the reference implementation and demonstrates how advanced architectural patterns like event sourcing and CQRS can be put to great use in implementing scalable models. It offers techniques that are radically different from the standard RDBMS based applications that are based on mutation of records. It also shares important patterns like using asynchronous messaging for interaction based on non blocking concurrency and model persistence, which delivers the speed of inmemory processing along with suitable guarantees of reliability. Key Features: Illustrates idioms and best practices Starts with Functional Programming basics Progresses to advanced concepts and patterns Offers radically different techniques from the standard RDBMS AUDIENCE Written for developers and architects comfortable with the basic ideas of functional programming and traditional domain modeling. No prior exposure to Akka or reactive application design is expected. ABOUT THE TECHNOLOGY Domain modeling is a technique for creating a conceptual map of a problem space such as a business system or a scientific application, so that developers can write the software more efficiently. Reactive application design, which uses functional programming principles along with asynchronous non-blocking communication, promises to be a potent pattern for developing performant systems that are relatively easy to manage, maintain, and evolve. Typically such models are called "reactive" because they are more responsive both to user requests and to system loads. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Codice articolo GOR010932996

Dati bibliografici

• Titolo: Functional and Reactive Domain Modeling
• Editore: Manning Publications, United States, New York
• Data di pubblicazione: 2016
• Lingua: Inglese
• ISBN 10: 1617292249
• ISBN 13: 9781617292248
• Rilegatura: Paperback
• Condizione: Very Good
• Peso: 567 grammi

Descrizione articolo

Riassunto

Summary

Functional and Reactive Domain Modeling teaches you how to think of the domain model in terms of pure functions and how to compose them to build larger abstractions.

Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.

About the Technology

Traditional distributed applications won't cut it in the reactive world of microservices, fast data, and sensor networks. To capture their dynamic relationships and dependencies, these systems require a different approach to domain modeling. A domain model composed of pure functions is a more natural way of representing a process in a reactive system, and it maps directly onto technologies and patterns like Akka, CQRS, and event sourcing.

About the Book

Functional and Reactive Domain Modeling teaches you consistent, repeatable techniques for building domain models in reactive systems. This book reviews the relevant concepts of FP and reactive architectures and then methodically introduces this new approach to domain modeling. As you read, you'll learn where and how to apply it, even if your systems aren't purely reactive or functional. An expert blend of theory and practice, this book presents strong examples you'll return to again and again as you apply these principles to your own projects.

What's Inside

• Real-world libraries and frameworks
• Establish meaningful reliability guarantees
• Isolate domain logic from side effects
• Introduction to reactive design patterns

About the Reader

Readers should be comfortable with functional programming and traditional domain modeling. Examples use the Scala language.

About the Author

Software architect Debasish Ghosh was an early adopter of reactive design using Scala and Akka. He's the author of DSLs in Action, published by Manning in 2010.

Table of Contents

1. Functional domain modeling: an introduction
2. Scala for functional domain models
3. Designing functional domain models
4. Functional patterns for domain models
5. Modularization of domain models
6. Being reactive
7. Modeling with reactive streams
8. Reactive persistence and event sourcing
9. Testing your domain model
10. Summary - core thoughts and principles

Informazioni sull?autore

Debasish Ghosh is a software architect with extensive experience in domain modeling. Debasish uses Scala and Akka in his daily work and was one of the earliest adopters of event sourcing using EventSourced, now called Akka Persistence. He's the author of DSLs in Action, published by Manning in 2010.