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| Foreword | |
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| Acknowledgments | |
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| Introduction | |
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| What Are Programming Guidelines | |
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| Why Programming Guidelines | |
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| Which Guidelines Are Involved Here | |
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| Target Audience | |
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| How to Use This Book | |
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| General Basic Rules | |
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| Separation of Concerns | |
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| KISS Principle | |
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| Correctness and Quality | |
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| ABAP-Specific Basic Rules | |
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| ABAP Objects as a Programming Model | |
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| Program Type and Program Attributes | |
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| Program Type | |
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| Program Attributes | |
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| Original Language | |
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| Modern ABAP | |
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| Checks for Correctness | |
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| Syntax Check | |
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| Extended Program Check | |
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| Code Inspector | |
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| ABAP Test Cockpit | |
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| Structure and Style | |
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| Source Code Formatting | |
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| Case Sensitivity | |
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| Statements per Program Line | |
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| Using the Pretty Printer | |
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| Line Width | |
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| Naming | |
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| Selecting the Language | |
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| Descriptive Names | |
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| Names of Repository Objects | |
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| Program-Internal Names | |
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| Comments | |
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| Selecting the Language | |
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| Content | |
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| Arrangement in the Source Code | |
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| Program and Procedure Structure | |
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| Global Declarations of a Program | |
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| Local Declarations | |
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| Source Code Organization | |
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| Source Code Modularization | |
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| Multiple Use of Include Programs | |
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| Alternative Notations | |
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| Alternative Language Constructs in Statements | |
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| Chained Statements | |
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| Method Calls | |
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| Assignments and Calculations | |
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| Calculation Expressions | |
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| Complexity | |
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| Expressions | |
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| Nesting Depth | |
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| Procedure Volume | |
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| Class Size | |
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| Dead Code | |
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| Architecture | |
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| Object-Oriented Programming | |
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| Encapsulation | |
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| Modularization | |
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| Static Classes and Singletons | |
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| Inheritance | |
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| Class References and Interface References | |
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| Local Types for Global Classes | |
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| Instance Constructor | |
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| Error Handling | |
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| Reaction to Error Situations | |
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| Classical and Class-Based Exceptions | |
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| Exception Categories | |
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| Exception Texts | |
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| Using Exception Classes | |
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| Handling and Propagating Exceptions | |
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| Cleanup After Exceptions | |
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| Catchable Runtime Errors | |
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| Assertions | |
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| Messages | |
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| User Interfaces | |
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| Selecting the User Interface Technology | |
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| Encapsulating Classical User Interfaces | |
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| Lists | |
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| Accessibility | |
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| Data Storage | |
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| Persistent Data Storage | |
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| Database Accesses | |
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| Client Handling | |
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| Using the Shared Memory | |
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| Secure and Robust ABAP | |
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| Data Types and Data Objects | |
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| Bound and Standalone Data Types | |
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| Declaration of Data Types and Constants | |
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| Declaration of Variables | |
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| Including Structures | |
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| Using Types | |
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| Referring to Data Types or Data Objects | |
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| Table Work Areas | |
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| Literals | |
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| Strings | |
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| Start Values | |
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| Data Objects for Truth Values | |
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| Assignments, Calculations, and Other Accesses to Data | |
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| Assignments Between Different Types | |
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| Avoiding Invalid Values | |
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| Using Conversion Rules | |
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| Specification of Numbers | |
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| Selecting the Numeric Type | |
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| Rounding Errors | |
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| Division by Zero | |
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| Casting | |
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| Runtime Errors When Accessing Data Objects | |
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| Anonymous Containers | |
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| Passing Global Data by Reference | |
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| System Fields | |
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| Access | |
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| Obsolete and Internal System Fields | |
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| Evaluation | |
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| Return Value | |
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| Using System Fields as Actual Parameters | |
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| Using System Fields on the User Interface | |
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| Using System Fields in Operand Positions | |
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| Internal Tables | |
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| Selecting the Table Category | |
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| Secondary Keys | |
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| Initial Memory Allocation | |
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| Sorted Filling | |
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| Aggregated Filling | |
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| Output Behavior | |
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| Loop Processing | |
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| Modularization Units | |
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| Function Modules and Subroutines | |
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| Type of the Formal Parameters of Procedures | |
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| Transfer Type of Formal Parameters | |
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| Passing Output Parameters by Reference | |
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| Typing of Formal Parameters | |
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| Internal and External Procedure Calls | |
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| Exiting Procedures | |
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| Dialog Modules and Event Blocks | |
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| Macros | |
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| Dynamic Programming Techniques | |
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| Using Dynamic Programming Techniques | |
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| Runtime Errors During Dynamic Processing | |
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| Using Dynamic Data Objects | |
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| Memory Consumption of Dynamic Memory Objects | |
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| Administration Costs of Dynamic Memory Objects | |
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| Accessing Data Objects Dynamically | |
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| Generic Programming | |
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| Internationalization | |
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| Storing System Texts | |
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| Translation-Friendly Message Texts | |
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| Text Environment | |
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| Character Set of Source Code | |
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| Splitting Texts | |
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| Codepages for Files | |
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| Obsolete Language Constructs | |
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| Procedures | |
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| Subroutines | |
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| Table Parameters | |
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| Typing of Formal Parameters | |
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| Declarations | |
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| Declaring Type Groups | |
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| Interface Work Areas | |
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| Table Work Areas | |
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| Referring to Data Types | |
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| Declaring Field Symbols | |
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| Typing Field Symbols | |
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| Header Lines of Internal Tables | |
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| Declaring Internal Tables | |
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| Ranges Tables | |
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| Addressing Data Objects | |
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| Loading Classes and Interfaces | |
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| Object Generation | |
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| Anonymous Data Objects | |
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| Calls and Exits | |
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| Dialog Modules | |
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| Function Module Exit | |
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| External Subroutine Call | |
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| Exiting Programs | |
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| Exception Handling | |
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| Program Flow Control | |
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| Relational Operators | |
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| Case Distinction | |
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| Checking the Binding to Actual Parameters | |
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| Checking Changes of Data Objects | |
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| Loops for Memory Content | |
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| Assignments | |
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| Subfield Access | |
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| Converting Packed Numbers | |
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| Initialization | |
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| Temporary Storage of Data Objects | |
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| Casting | |
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| Dynamic Assignment to a Field Symbol | |
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| Calculation Statements | |
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| Component-Based Calculations | |
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| Calculations with Memory Content | |
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| Processing Character and Byte Strings | |
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| Searching in Character and Byte Strings | |
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| Replacements in Character and Byte Strings | |
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| Creating the Nine's Complement | |
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| Translating Characters and Numbers | |
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| Text Editor | |
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| Internal Tables | |
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| Processing Statements | |
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| Key Specifications | |
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| Deleting a Table | |
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| Formatted Assignment | |
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| HR Infotypes | |
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| Dynpro Flow Logic | |
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| Comparing Values | |
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| Accessing Databases | |
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| Extending Subscreens | |
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| Step Loops | |
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| Classical List Processing | |
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| Formatting | |
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| List Event | |
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| Print Parameters | |
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| Spool Request | |
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| Extreme Values and Calculations | |
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| Data Storage | |
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| Open SQL | |
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| Native SQL | |
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| Data Cluster | |
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| Data Clusters in the ABAP Memory | |
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| Data Clusters in the Database | |
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| Work Area for Data Clusters | |
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| Obsolete Database Accesses | |
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| Contexts | |
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| External Interfaces | |
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| XML Connection | |
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| CPI-C Interface | |
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| JavaScript Connection | |
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| Automatic Check of Naming Conventions | |
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| Naming Conventions in the Code Inspector | |
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| Type-Specific Prefix Components | |
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| Prefixes for Procedure-Local Declarations | |
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| Structured Programming | |
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| Object-Oriented Programming | |
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| Assessment of the Naming Conventions | |
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| Table of Rules | |
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| Recommended Reading | |
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| The Authors | |
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| Index | |