ABAP Objects: Application Development From Scratch (H2953)

Description

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.

CONTENTS:

1 ... Introduction ... 17

1.1 About this Book ... 18

1.2 Sample Application and Technical Prerequisites ... 21

2 Designing Application Systems ... 23

2.1 Requirements ... 24

2.2 General Architectural Considerations ... 39

2.3 Using the Standard SAP System ... 49

3 Application Object ... 51

3.1 What Is an Application Object? ... 52

3.2 Modeling the Application Object at the Database Level ... 56

3.3 Implementing Object Persistence ... 75

3.4 Transaction Concept ... 95

3.5 Best Practices ... 102

4 Classes, Interfaces, and Exceptions ... 113

4.1 Advantages of ABAP Objects ... 114

4.2 Exceptions ... 116

4.3 Basic Principles of Object-Oriented Design ... 122

4.4 Classic Modularization Units ... 130

4.5 Best Practices ... 132

5 Application Architecture ... 135

5.1 Requirements for Application Architecture ... 135

5.2 Software Structuring from a Technical Perspective ... 137

5.3 How To Structure a Software System ... 141

5.4 Package Concept ... 148

5.5 Composition of Packages ... 161

5.6 Best Practices ... 179

6 Application Layer ... 187

6.1 Application Logic ... 188

6.2 Customizing ... 196

6.3 Search Services ... 204

6.4 Workflows ... 209

7 ... GUI Programming ... 229

7.1 Ergonomic Examples and Dialog Standards ... 230

7.2 Table Maintenance Dialog and View Cluster ... 238

7.3 Area Menus ... 258

7.4 Object-Oriented Screen Programming ... 261

7.5 Web Dynpro ... 306

7.6 Best Practices ... 327

8 SAP Business Partner ... 331

8.1 Background Information ... 331

8.2 Business Partner Extension ... 336

8.3 SAP Locator Extension ... 369

8.4 Key Transactions ... 388

9 ... Application Programming Techniques ... 391

9.1 Implementing the Application Log ... 392

9.2 Parallel Processing of Applications ... 417

9.3 Key Transactions ... 445

10 Information Acquisition ... 447

10.1 SAP Service Marketplace ... 447

10.2 ABAP Keyword Documentation ... 450

10.3 SAP Design Guild ... 451

10.4 Internal Workings of AS ABAP ... 451

10.5 Knowledge Management ... 459

10.6 Key Transactions ... 461

A Managing Development Projects ... 465

A.1 Roles in Development Projects ... 465

A.2 Quality Management ... 467