Official ABAP Programming Guidelines - Horst Keller

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Auteur(s) : Horst Keller - Wolf Hagen Thummel

Editeur : Rheinwerk Publishing Inc.

Langue : Anglais

Parution : 01/09/2009

Format : Moyen, de 350g à 1kg

Nombre de pages : 398

Expédition : 884

Dimensions : 23.6 x 18.2 x 3.0

ISBN : 1592292909

Résumé :
How do I select the appropriate program type in SAP programming? Where should the local declarations of a procedure be positioned? Am I supposed to immediately replace all obsolete language elements in existing code? Should I use procedural or object-oriented ABAP (ABAP Objects)? The official ABAP programming guidelines provide clarity and security by answering these questions, and many more that may arise in your daily work!

1. General Rules Learn the general principles that you should take into account when you create new programs and classes.

2. Structure and Style Find the answers to your questions on style, including naming, commentation, and structure of programs and procedures.

3. Architecture Explore guidelines on individual aspects of architecture, such as object orientation, error handling, user interfaces, data storage, and much more.

4. Secure and Robust ABAP Ensure your ABAP programs run predictably with no surprises by gaining in-depth knowledge on data types and data objects, calculations and accesses, internal tables, and more.

5. Tips and Hints Explore tips and hints throughout the book, as well as examples of good and bad ABAP programming, to help you adopt effective working techniques and principles.

Highlights:

• Basic Rules: Separation of Concerns, Correctness and Quality, Program Type and Attributes, Modern ABAP, Checks for Correctness
• Structure and Style: Code Formatting and Organization, Naming, Comments, Alternative Notations
• Architecture: Object Orientation, Error Handling, User Interfaces, Data Storage
• Secure and Robust ABAP: Data Types and Objects, Calculations and Accesses, System Fields, Internal Tables, Modularization, Dynamic Programming

Biographie:
Dr. Horst Keller works in the NetWeaver Developer Tools ABAP group at SAP. As Knowledge Architect he is responsible for documentation and roll-out relating to ABAP and ABAP Objects. He also oversees the programs for preparing and presenting the ABAP documentation including the relating search algorithms.

Sommaire:

... Foreword ... 13
... Acknowledgments ... 15
1 ... Introduction ... 17
... 1.1 ... What Are Programming Guidelines ... 17
... 1.2 ... Why Programming Guidelines ... 18
... 1.3 ... Which Guidelines Are Involved Here ... 18
... 1.4 ... Target Audience ... 19
... 1.5 ... How to Use This Book ... 20
2 ... General Basic Rules ... 23
... 2.1 ... Separation of Concerns ... 23
... 2.2 ... KISS Principle ... 32
... 2.3 ... Correctness and Quality ... 34
3 ... ABAP-Specific Basic Rules ... 41
... 3.1 ... ABAP Objects as a Programming Model ... 41
... 3.2 ... Program Type and Program Attributes ... 50
... 3.3 ... Modern ABAP ... 62
... 3.4 ... Checks for Correctness ... 65
4 ... Structure and Style ... 79
... 4.1 ... Source Code Formatting ... 80
... 4.2 ... Naming ... 91
... 4.3 ... Comments ... 115
... 4.4 ... Program and Procedure Structure ... 123
... 4.5 ... Source Code Organization ... 130
... 4.6 ... Alternative Notations ... 135
... 4.7 ... Complexity ... 146
5 ... Architecture ... 155
... 5.1 ... Object-Oriented Programming ... 155
... 5.2 ... Error Handling ... 172
... 5.3 ... User Interfaces ... 195
... 5.4 ... Data Storage ... 208
6 ... Secure and Robust ABAP ... 217
... 6.1 ... Data Types and Data Objects ... 217
... 6.2 ... Assignments, Calculations, and Other Accesses to Data ... 241
... 6.3 ... System Fields ... 262
... 6.4 ... Internal Tables ... 273
... 6.5 ... Modularization Units ... 287
... 6.6 ... Dynamic Programming Techniques ... 309
... 6.7 ... Internationalization ... 329
A ... Obsolete Language Constructs ... 341
... A.1 ... Procedures ... 342
... A.2 ... Declarations ... 343
... A.3 ... Object Generation ... 347
... A.4 ... Calls and Exits ... 347
... A.5 ... Program Flow Control ... 349
... A.6 ... Assignments ... 350
... A.7 ... Calculation Statements ... 352
... A.8 ... Processing Character and Byte Strings ... 353
... A.9 ... Internal Tables ... 355
... A.10 ... Dynpro Flow Logic ... 357
... A.11 ... Classical List Processing ... 358
... A.12 ... Data Storage ... 360
... A.13 ... Contexts ... 362
... A.14 ... External Interfaces ... 363
B ... Automatic Check of Naming Conventions ... 365
... B.1 ... Naming Conventions in the Code Inspector ... 365
... B.2 ... Type-Specific Prefix Components ... 366
... B.3 ... Prefixes for Procedure-Local Declarations ... 367
... B.4 ... Structured Programming ... 369
... B.5 ... Object-Oriented Programming ... 370
... B.6 ... Assessment of the Naming Conventions ... 371
C ... Table of Rules ... 373
D ... Recommended Reading ... 377
E ... The Authors ... 379
... Index ... 381