1 Introduction to Modern ABAP Development

21

1.1 The Role of ABAP in SAP Development

22

1.2 The New Development Model for ABAP

23

1.3 The ABAP Language Version

25

1.4 APIs Released via Release Contracts

30

1.5 Development Environment

32

1.6 Programming Model

32

1.7 Usage Scenarios for ABAP Cloud

34

1.8 ABAP Releases On-Premise and in the Cloud

37

1.9 Restrictions Depending on the Release and Runtime Environment

38

1.10 Summary

39

2 The Application Scenario

41

2.1 Concept of the Sample Application

41

2.2 Creating Dictionary Objects

45

2.3 Generating an ABAP RESTful Application Programming Model Application

52

2.3.1 Generating an OData Service and a Virtual Data Model

53

2.3.2 Generated CDS Entities of the ABAP RESTful Application Programming Model Application

56

2.3.3 Publishing the OData Service

64

2.3.4 Testing the Application

65

2.4 Creating Associations

66

2.5 Application Scenario from a User’s Perspective

73

2.6 Summary

76

3 Handling System Fields and Runtime Information

79

3.1 System Fields in ABAP Cloud

80

3.2 Overview of the Available APIs

82

3.3 Access to Time Information

83

3.4 Accessing User Data

90

3.5 Access to Technical Information on the Current Program Execution

92

3.6 Accessing Messages

94

3.7 Accessing System Data

95

3.8 Summary

97

4 Table Analysis

99

4.1 Table Analysis Using the Customer Data Browser

100

4.2 Table Analysis Using ABAP Development Tools

106

4.3 Summary

110

5 Table Maintenance Using Business Configuration Maintenance Objects

111

5.1 Overview of the New Table Maintenance Concept

112

5.2 Creating Customizing Tables

114

5.3 Generating the Business Configuration App

124

5.4 Assigning Authorizations

132

5.5 Configuration from a User’s Perspective

136

5.6 Settings in the Business Configuration Maintenance Object

143

5.7 Lifecycle Management with Deprecation

145

5.8 Documenting Business Configuration Maintenance Objects

148

5.9 Summary

150

6 Application Logs

151

6.1 Application Log for the Sample Application

152

6.2 Maintaining Application Log Objects and Subobjects

155

6.3 The BALI API

159

6.4 Creating a Log

161

6.4.1 Adding Free Text Messages

163

6.4.2 Adding Messages from Message Classes

165

6.4.3 Adding Messages from Exception Classes

169

6.5 Saving a Log

172

6.6 Displaying Logs

174

6.7 Summary

175

7 Change Documents

177

7.1 Maintaining Change Document Objects in the ABAP Development Tools

178

7.2 Calling the Logging Function via the Generated Class

182

7.3 Change Document Update Using the ABAP RESTful Application Programming Model

189

7.4 Displaying Change Documents

195

7.5 Summary

197

8 Lock Objects

199

8.1 Lock Mechanisms in the Database Environment

199

8.2 Locks on the ABAP Platform

203

8.3 Using Lock Objects

204

8.4 API for Lock Objects

206

8.5 Integration into the Sample Application

212

8.6 Summary

215

9 Number Range Objects

217

9.1 Number Ranges in SAP Systems

218

9.2 Maintaining a Number Range

218

9.3 API for Number Range Objects

223

9.4 Numbering in the ABAP RESTful Application Programming Model

226

9.4.1 Unmanaged Early Numbering

227

9.4.2 External Early Numbering

231

9.4.3 Managed Early Numbering

233

9.5 Summary

235

10 Background Processing

237

10.1 Developing an Execution Logic

238

10.2 Creating Application Jobs

242

10.2.1 Creating an Application Job Catalog Entry

243

10.2.2 Creating an Application Job Template

245

10.2.3 Creating an Application Job

246

10.3 Checks

252

10.4 Logging

257

10.5 Summary

259

11 Email Dispatch

261

11.1 Configuring and Monitoring the Email Dispatch

262

11.2 ABAP Cloud API for the Email Dispatch

265

11.3 Integrating the Newsletter Dispatch into the Recipe Portal

271

11.3.1 Creating an Application Job

272

11.3.2 Email with Error Message

274

11.4 Summary

278

12 Parallelizing Application Logic

279

12.1 Parallelization on the ABAP Platform

280

12.2 The CL_ABAP_PARALLEL Class

281

12.3 Refactoring the Sample Application

285

12.3.1 Implementing the IF_ABAP_PARALLEL Interface

288

12.3.2 Sequence and Debugging of Parallel Processes

294

12.4 Summary

297

13 File Upload

299

13.1 Extending the Sample Application to Include a File Upload Option

299

13.2 Summary

308

14 Using Excel Files

309

14.1 Creating an Excel File

313

14.1.1 Creating the Action

313

14.1.2 Creating the Excel Document

314

14.1.3 Creating the Workbook

315

14.1.4 Writing the Recipe Data to the Worksheet

315

14.1.5 Addition to the Header

317

14.1.6 Adding Another Worksheet

318

14.1.7 Saving the Excel File

320

14.1.8 Testing the Application

321

14.2 Reading an Excel File

324

14.2.1 Creating the Action

324

14.2.2 Creating the Document Object

324

14.2.3 Reading a Worksheet

325

14.2.4 Reading the Header

326

14.2.5 Reading Data into an Internal Table

328

14.2.6 Executing the Mass Change

330

14.2.7 Testing the Application

332

14.3 Summary

333

15 Documenting Development Objects

335

15.1 ABAP Doc

336

15.2 Knowledge Transfer Document

343

15.2.1 Creating a Knowledge Transfer Document

343

15.2.2 Linking a Knowledge Transfer Document to a Development Object

347

15.3 Summary

350

16 Authorizations

351

16.1 Authorization Checks for Read Operations

352

16.2 Authorization Checks for Change Operations

357

16.2.1 Global Authorizations

358

16.2.2 Instance-Dependent Authorizations

361

16.2.3 Authorization Precheck

363

16.3 Summary

365

17 Using APIs

367

17.1 Finding the Right APIs

368

17.1.1 Successor Objects

368

17.1.2 Searching via CDS Entity I_APIsForCloudDevelopment

370

17.1.3 Searching via the Open ABAP Development Object Dialog Box

371

17.1.4 Searching via ABAP Object Search

373

17.1.5 Grouping and Filtering in Project Explorer

374

17.1.6 External Search Options

378

17.2 Calling APIs Based on the ABAP RESTful Application Programming Model via EML

381

17.3 Summary

385

18 Extensions in ABAP Cloud

387

18.1 Key User Extensibility

388

18.1.1 Setting Up the Adaptation Transport Organizer

388

18.1.2 Custom Fields

391

18.1.3 Custom Logic

396

18.1.4 Transporting Key User Extensions

400

18.1.5 Custom CDS Views

403

18.2 Developer Extensibility

408

18.2.1 Extending Database Tables

409

18.2.2 Extending CDS Entities

411

18.2.3 Implementing Custom Logic

414

18.3 Summary

417