Web Dynpro for ABAP

- Introduction ... 13

1. On the Development of Web-Based Applications ... 23
1.1 Mainframe and Client Server Systems ... 24
1.2 Business Server Pages ... 27
1.3 Web Dynpro Framework ... 29
1.4 Web Dynpro for ABAP for Future Use ... 35

2. WD4A Framework ... 37
2.1 Web Dynpro Explorer ... 37
2.2 Relationships Between Application and Component ... 51
2.3 Visual Parts ... 53
2.4 View Controller and View Context ... 61
2.5 Controllers and Controller Methods ... 78
2.6 Navigation, Inbound Plugs, and Outbound Plugs ... 87
2.7 Phase Model ... 91

3. Developing WD4A Applications ... 95
3.1 Transferring Parameters from a URI ... 95
3.2 Influencing the Request/Response Cycle ... 103
3.3 Implementation of Selection Options ... 111
3.4 Presentation of Tree Structures ... 125
3.5 User Guidance per RoadMap and Messages ... 137
3.6 Presenting Tables ... 152
3.7 Calling Popup Windows ... 163
3.8 Using Input Helps ... 171
3.9 Internationalization ... 172
3.10 Customization, Configuration, Personalization ... 176

4. Multi-Component Applications ... 185
4.1 A Model of Layer Separation ... 185
4.2 Defining WD4A Component Usages ... 192
4.3 Componentizing an Application ... 200

5. Dynamic Component Applications ... 225
5.1 Types of Dynamic Changes ... 225
5.2 Dynamic Programming-A Sample Application ... 237

6. Reusing WD4A Components ... 261
6.1 Comparing Classes and Components ... 261
6.2 ALV Component SALV_WD_TABLE ... 263
6.3 OVS Component WDR_OVS ... 270
6.4 SO Component WDR_SELECT_OPTIONS ... 275
6.5 Developing Input-Help Components ... 282
6.6 Enhancements of Components ... 288

7. Integrating WD4A Applications ... 293
7.1 Integration into the SAP NetWeaver Portal ... 293
7.2 Graphical Display of Data ... 297
7.3 Interactive Forms Via Adobe Integration ... 308

A. Classes and Interfaces ... 317
A.1 Component ... 317
A.2 Context ... 326
A.3 View ... 335
A.4 Window ... 339
A.5 Integration ... 341
A.6 Application ...

Ulli Hoffmann studied information technology at the Technical College in Coburg, Germany, where he graduated in electrical engineering. He also studied computer engineering at Louisiana State University (LSU), where he received a Master of Science degree. After finishing his studies, he worked in various positions at AMD, Inc. and the AMD European Microelectronic Center. Ulli was introduced to SAP technology when he worked in the Application Link Enabling (ALE) area. In recent years, he has focused more on ABAP-based web technologies (e.g., Business Server Pages and Web Dynpro for ABAP). Today, Ulli Hoffmann is the founder and Managing Director of INIDFAB Computing GmbH, a consulting firm that specializes in the design and development of web-based applications. As a development consultant, he is involved in various projects at SAP AG and SAP customers.

"This book illustrates the benefits that can be realized with component-based user interface development using Web Dynpro for ABAP. (...) Numerous code listings, screen captures, and little-known tricks make this book an indispensable companion for the practical design of modern user interfaces. "