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Use design patterns to step up your object-oriented ABAP game, starting with MVC Want to create objects only when needed? Call objects only when required, minimizing runtime and memory costs? Reduce errors and effort by only coding an object once? Future-proof your code with a flexible design? Design patterns are the answer With this guide, you'll get practical examples for every design pattern that will have you writing readable, flexible, and reusable code in no time Creational Design Patterns Create objects with the abstract factor, builder, factory, lazy initialization, multiton, prototype, and singleton design patterns Structural Design Patterns Allow objects to interact and work together without interdependency with the adapter, bridge, composite, data access object, decorator, fa ade, flyweight, property container, and proxy design patterns. Behavioral Design Patterns Increase the flexibility of your object communication with the chain of responsibility, command, mediator, memento, observer, servant, state, strategy, template method, and visitor design patterns. Highlights: MVC (model, view, controller) pattern Singleton pattern Factory pattern Builder pattern Observer pattern Visitor pattern Lazy initialization pattern Template method Strategy pattern Decorator pattern ABAP-specific examples Anti-patterns
Design patterns provide you with proven solutions for everyday coding problems. This SAP Essentials guide shows how to apply them to your favourite language: ABAP. Expanded by the implementation of the MVC pattern in Web Dynpro and a new chapter on the Factory pattern, this second edition of our programming workshop now covers all important patterns and all up-to-date ABAP techniques. Watch how the expert codes the patterns and immediately benefit from better stability and maintainability of your code
Conquer your fear and anxiety learning how the concepts behind object-oriented design apply to the ABAP programming environment. Through simple examples and metaphors this book demystifies the object-oriented programming model. Object-Oriented Design with ABAP presents a bridge from the familiar procedural style of ABAP to the unfamiliar object-oriented style, taking you by the hand and leading you through the difficulties associated with learning these concepts, covering not only the nuances of using object-oriented principles in ABAP software design but also revealing the reasons why these concepts have become embraced throughout the software development industry. More than simply knowing how to use various object-oriented techniques, you'll also be able to determine whether a technique is applicable to the task the software addresses. This book: div Shows how object-oriented principles apply to ABAP program design Provides the basics for creating component design diagrams Teaches how to incorporate design patterns in ABAP programs What You’ll Learn Write ABAP code using the object-oriented model as comfortably and easily as using the procedural model Create ABAP design diagrams based on the Unified Modeling Language Implement object-oriented design patterns into ABAP programs Reap the benefits of spending less time designing and maintaining ABAP programs Recognize those situations where design patterns can be most helpful Avoid long and exhausting searches for the cause of bugs in ABAP programs Who This Book Is For Experienced ABAP programmers who remain unfamiliar with the design potential presented by the object-oriented aspect of the language
There's more to ABAP than procedural programming. If you're ready to leap into the world of ABAP Objects--or are already there and just need a refresher--then this is the book you've been looking for. Thanks to explanations of basic concepts, practical examples that show OOP in action, and updates for AS ABAP 7.4, you'll find answers to questions you didn't even know you had. Clear Conceptual Explanations Master the basics with easy-to-understand explanations that make coding with classes and objects seem like second nature. Practical Examples The best way to learn is by doing. Download source code to practice your skills in object cleanup and initialization, inheritance, polymorphism, and more. Updates for New Releases and Tools Make sure your skills are up to date with the latest information on how AS ABAP 7.4 will affect your object-oriented programming. Highlights: Working with objects Encapsulation and implementation hiding Object initialization and cleanup Inheritance Polymorphism Component-based design Exceptions ABAP Unit ALV object model Object Services BOPF
Software -- Software Engineering.
ABAP's object-oriented concepts let you develop flexible, self-contained software, completely independent of standard SAP applications. But doing so is challenging, even for experienced software architects. This book addresses this issue by showing you, in a hands-on, step-by-step manner, how to successfully navigate the development process with ABAP Objects. First, uncover the requirements critical for designing application systems, and how to model the application object. Then, you'll benefit from expert guidance on the application system in general, including how to split an application into packages, define dependencies, and develop interfaces. Finally, with the authors' help, you'll tackle the greatest challenge of them all: implementing the application layer. GUI programming, SAP Business Partner, and special application programming techniques are also carefully explained in detail. Complete with chapters on information acquisition and managing development projects, this comprehensive programming guide is a must for every serious ABAP developer.
ABAP developers, are you looking to clean up your code? Then pick up this official companion to the Clean ABAP GitHub repository. This book is brimming with best practices, straight from the experts, to help you write effective ABAP code. Start by learning when to apply each clean ABAP practice. Then, dive into detailed code examples and explanations for using classes, methods, names, variables, internal tables, and more. From writing code to troubleshooting and testing, this is your complete style guide! In this book, you'll learn about: a. Clean ABAP Concepts What is clean ABAP and why is it important to write clean code? Understand clean ABAP concepts with insight from the experts, including special considerations for legacy code and performance. b. Best Practices Walk through the what, why, and how behind clean ABAP best practices. Learn to improve your code, including using classes and interfaces appropriately, handling method design and control flow, designing and running unit tests, and much more. c. Practical Examples See clean ABAP practices in action! Improve your understanding of how to write effective code. Use detailed examples for each best practice that demonstrate the difference between clean and messy code. Highlights include: 1) Classes and interfaces 2) Methods 3) Names 4) Variables and literals 5) Internal tables 6) Control flow 7) Comments 8) Formatting 9) Error handling 10) Unit testing 11) Packages
Code-based test improvement -- Design-based test improvement -- Robust integration test -- Minimizing dependencies -- Isolated component test -- Redesign with unit tests.
ABAP to the Future is back, and better than ever! Looking for the latest in ABAP syntax? The code examples are fully rewritten. Need to start working in the cloud with the ABAP RESTful application programming model? We've got you covered. Got a new IDE like SAP Business Application Studio? We'll show you the ins and outs of your environment. From abapGit and ABAP2XLSX to SAPUI5 and Web Dynpro ABAP, this new edition has everything you need to be on the cutting edge!
Take your SAP ABAP skills to the next level by mastering ABAP programming techniques with the help of real-world examples Key FeaturesBecome adept at building interfaces and explore ABAP tools and techniquesDiscover the modern functionalities available in the latest version of ABAPLearn the process of creating stunning HTML5 applications using SAPUI5Book Description Advanced Business Application Programming (ABAP) is an established and complex programming language in the IT industry. This book is designed to help you use the latest ABAP techniques and apply legacy constructions using practical examples. You'll start with a quick refresher on language and database concepts, followed by agile techniques for adding custom code to a modern ABAP system. After this, you will get up to speed with the complete ABAP toolset for importing data to and from different environments. Next, you'll learn how to print forms and work with the different ABAP tools for Extensible Markup Language (XML) manipulation. While covering further chapters, you'll gain insights into building stunning UI5 interfaces, in addition to learning how to develop simple apps using the Business Object Processing Framework (BOPF). You will also pick up the technique of handling exceptions and performing testing in ABAP. In the concluding chapters, you can look forward to grasping various techniques for optimizing the performance of programs using a variety of performance analysis tools. By the end of this book, you will have the expertise you need to confidently build maintainable programs in Systems, Applications, and Products (SAP). What you will learnCreate stable and error-free ABAP programsLeverage new ABAP concepts including object-oriented programming(OOP) and Model-View-Controller (MVC)Learn to add custom code to your existing SAP programSpeed up your ABAP programs by spotting bottlenecksUnderstand techniques such as performance tuning and optimizationDevelop modern and beautiful user interfaces (UIs) in an ABAP environmentBuild multiple classes with any nesting levelWho this book is for This book is for developers who want to learn and use ABAP skills to become an industry expert. Familiarity with object-oriented programming concepts is expected.