SAPPRESS：SAP专家与Rheinwerk合作的ABAP与Fiori教程精选

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本资源是一系列关于SAP技术领域的教程，特别是与Fiori开发和认证相关的学习资料。SAPPRESS是SAP和Rheinwerk Publishing合作的一个项目，旨在为SAP用户提供权威的专业书籍，涵盖技术及业务方面的深入知识。这些教程由SAP专家和出版社的资深作者共同编撰，确保了信息的准确性和实用性。首先，"Complete ABAP (2nd edition)" 由Kiran Bandari撰写，于2020年发布，共1,032页，包含硬皮书和电子版。这本书详尽介绍了ABAP（Advanced Business Application Programming）的基础和进阶内容，对希望深入理解和掌握ABAP编程的读者来说是不可或缺的资源。其次，"Puneet Asthana and David Haslam的《ABAP 7.5 Certification Guide: Development Associate Exam (4th edition)》" 出版于2018年，针对ABAP 7.5版本的开发人员认证考试，提供了636页的内容，适合备考者查阅和准备相关的专业考试。 "Core Data Services for ABAP" 由Colle、Dentzer和Hrastnik合著，于2019年推出，探讨了如何在ABAP环境中有效地利用核心数据服务，帮助开发者构建高效的数据管理架构，对于从事企业数据集成工作的专业人士非常有帮助。 "Winfried Schwarzmann的《Test-Driven Development with ABAP Objects》" 是一本专注于测试驱动开发(TDD)在ABAP对象中的应用教程，共594页，适合那些关注代码质量与自动化测试的开发者。最后，"Stefan Haas和Bince Mathew的《ABAP RESTful Programming Model / ABAP Development for SAP/S4HANA》" 介绍了ABAP在SAP/S4HANA平台上的RESTful编程模型和开发实践，对于那些希望将现代Web服务技术融入SAP系统架构的开发者具有重要的参考价值。这些教程不仅涵盖了基础到高级的技能，还包括了最新的技术趋势，如ABAP 7.5认证和SAP/S4HANA的集成，对于提升个人职业素养，保持与SAP技术同步发展具有重要作用。通过访问SAP出版社的官方网站<http://www.sap-press.com>，读者可以获取更多详细信息和购买这些权威教程。

Preface

development paradigms of previous SAP ERP versions. Our goal with this book is

therefore to connect all of these different technologies that make up the new SAP

S/4HANA programming model and give you a coherent end-to-end view of how to

develop your own custom applications on the SAP S/4HANA platform. Throughout

the book, we’ll develop several fully functioning SAP S/4HANA SAP Fiori applications

step by step, and you’ll learn all the associated technologies and practices required,

ranging from defining data models using ABAP core data services (CDS) over exposing

them as an OData service to creating SAP Fiori UIs using SAPUI5 and UI annotations.

Target Audience

This book is primarily targeted at developers and consultants who want to learn how

to develop applications for SAP S/4HANA. However, it might also be of interest for all

kinds of people interested in SAP S/4HANA application development and its associ-

ated technologies and tools, for instance, technical-oriented business users and man-

agers, project leaders, quality managers, or development managers.

Ideally, readers should be familiar with ABAP, JavaScript, and SQL as the book doesn’t

cover the basics of these programming languages. A basic understanding of SAP Fiori,

SAP Web IDE, SAPUI5, CDS, Eclipse, SAP Gateway, OData, and the SAP Fiori launchpad

is also beneficial, as we won’t introduce those technologies in full depth. However,

you’ll receive all you need to understand and begin developing SAP S/4HANA appli-

cations.

Structure of This Book

Part I: SAP S/4HANA and SAP Fiori

쐍 We’ll start the book with Chapter 1: SAP S/4HANA Architecture, which will give

you an introduction to SAP S/4HANA and its architecture in general and how it dif-

fers from previous SAP ERP three-tier architectures. Additionally, we’ll outline the

main differences between the SAP S/4HANA and SAP S/4HANA Cloud from a tech-

nical perspective.

쐍 Chapter 2: SAP Fiori and the Design-Led Development Process introduces several

UI-related topics beginning with the five core principles of the SAP Fiori design

language: role-based, delightful, coherent, simple, and adaptive. After that, we’ll

look at the three phases of the design-led development process—discover, design,

Structure of This Book

develop—and how the process is key to a great user experience. Subsequently, the

different SAP Fiori application types and their characteristics are explained. In

general, we can distinguish between SAP Fiori elements applications, which are

template based, and freestyle applications. Finally, the SAP Build tool is demon-

strated as an easy-to-use cloud-based tool supporting all phases of the design-led

development process.

쐍 In Chapter 3: ABAP RESTful Programming Model, we take a closer look at SAP

S/4HANA’s application programming model and its associated technologies. We

begin with core data services (CDS) as the key technology for exploiting SAP

HANA’s in-memory capabilities by enabling code-pushdown for all types of SAP

S/4HANA applications from analytical to transactional. Then we look at the OData

and SAP Gateway technologies, which enable access to ERP data from different cli-

ents and thereby enable the use of new UI technologies in conjunction with ERP

data. The main purpose of the chapter, however, is to introduce the ABAP RESTful

programming model in detail, beginning with an overview of its development

flow and runtime components. Subsequently, we look at the different artifacts

required to develop an ABAP RESTful application: queries, behavior definitions,

behavior implementations, service definitions, and service bindings.

Part II: Developing Applications for SAP S/4HANA

쐍 In Chapter 4: Developing an SAP Fiori Elements List Report and Object Page, we’ll

develop our first SAP Fiori elements application, based on the ABAP RESTful pro-

gramming model, from the data model up to the UI. We’ll create CDS views, add

business object structure to them, implement business object behavior, and finally

create a UI consisting of a list report and an object page. We’ll also add unit tests for

our backend and frontend business logic.

쐍 Chapter 5: Developing an Overview Page will introduce the overview page (OVP)

SAP Fiori elements application type in detail. We’ll create an analytical overview

page for our business scenario step by step and show you the end-to-end develop-

ment processes ranging from CDS view creation to business service definition and

the definition of the required UI annotations.

쐍 In Chapter 6: Developing an Analytical List Page, you’ll get to know another ana-

lytical SAP Fiori elements application type, the analytical list page (ALP). As in the

previous chapters, we’ll also develop an end-to-end application using this applica-

tion type and show all the necessary steps for getting an ALP application up and

running.

Preface

쐍 If the SAP Fiori elements app types don’t suit your needs, you must develop a free-

style application, which gives you full flexibility in terms of designing and im-

plementing the UI of your application. In Chapter 7

: Developing a Freestyle

Application, we’ll show you how to develop a freestyle application step by step

using the SAP Web IDE full-stack. We’ll show you all the necessary steps required to

set up a freestyle application project, connect to an OData service, set up in-app

navigation, and develop the UI using smart controls.

쐍 In Chapter 8: Deploying Applications to the SAP Fiori Launchpad, we’ll show you

how to make the previously developed apps available to users in the SAP Fiori

launchpad according to their business roles and how to connect all apps using

cross-app navigation.

Part III: Operating Applications

쐍 As the frontend part of SAP S/4HANA applications is based on JavaScript and no

longer on proprietary ABAP-based technologies such as Web Dynpro, the UI

source code can’t be managed with the classic ABAP Change and Transport System

(CTS) anymore. Usually SAPUI5 code is managed with the Git Source Code Manage-

ment (SCM) system, which is also well integrated into SAP Web IDE full-stack.

Chapter 9

: Version Control in SAP Web IDE Using Git will therefore introduce you

to the most important Git commands required when developing SAPUI5 applica-

tions in SAP Web IDE.

쐍 Having a comprehensive automated test suite created using test-driven develop-

ment (TDD) is a key enabler for good code quality, earlier detection of regression

bugs, shorter release cycles, and, consequently, earlier customer feedback. There-

fore, Chapter 10

: Automated Testing will introduce you to the SAP S/4HANA test-

ing pyramid. We’ll start from the bottom up to show you how to write unit tests,

integration tests, and end-to-end (E2E) tests for your SAP S/4HANA applications.

쐍 Another key practice for shortening release cycles and reducing risk is continuous

integration (CI). We’ll teach you how to set up a CI pipeline for your frontend

SAPUI5 code in Chapter 11

: Continuous Integration. Additionally, we’ll look at

how you can establish kind of a CI pipeline in the backend as well using the ABAP

Test Cockpit (ATC) and the ABAP Unit Runner.

쐍 In Chapter 9, you learn how to use Git to manage your frontend SAPUI5 JavaScript

source code. Nowadays, you can also manage your backend ABAP code with Git by

using abapGit, a Git client for ABAP. Therefore, Chapter 12

: ABAP on Git will give

Acknowledgments

you an introduction on how to use abapGit and its corresponding Eclipse plugin to

manage ABAP source code. After reading this chapter you should also be able to

import the source code attached to this book into your S/4HANA sandbox system.

Because SAP S/4HANA Cloud customers no longer have access to the SAP NetWeaver

backend of SAP S/4HANA, SAP is providing another platform for doing side-by-side

application development: the SAP Cloud Platform. In Appendix A

: Developing

Applications on the SAP Cloud Platform, we’ll give you a quick tour of the SAP Cloud

Platform programming model by developing a list report application similar to the

application we developed in Chapter 4

on the SAP S/4HANA core platform.

Acknowledgments

We would like to thank our SAP PRESS editors Will Jobst and Hareem Shafi for the

trust they have placed in us and for providing us with an opportunity to write this

book. A special thanks also to you, the reader, for picking up this book. We hope it’s

helpful and gives you a kick start to developing applications for SAP S/4HANA.

Stefan Haas

I would like to thank my wife, Carolin, and my parents for their continuous support

and understanding throughout the writing process of this book. A big thanks goes to

my coauthor Bince Mathew for sharing this opportunity and experience with me.

Thanks also to my friend Yingding who always has an open ear for technical discus-

sions.

Bince Mathew

I would like to dedicate this book to my late father who was always very supportive

and proud of me being an author. I would like to express my sincere gratitude to my

mother, my wife and my brother who motivated me throughout the whole journey

of writing this book. A special thanks to my wife Suzana who supported and encour-

aged me to keep up with the schedule of the book, she also took the time to read

through the chapters and gave her feedback. A big thank you tomy coauthor Stefan

Haas: it was a pleasure working with you. Special thanks to Will Jobst for his help and

guidance while writing this book and to Hareem Shafi for providing us with an oppor-

tunity to write this book.

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