SAP Interface Programming

Dr. Michael Wegelin studied physics at the Karlsruhe Technical University, Germany, and at the Tubingen University, Germany. During his studies, he worked as a C++ developer for Scharfe System Reutlingen and developed graphical user interfaces on Windows for measuring devices, among other things. After finishing his studies, he worked as a software developer for Think Tools GmbH in Starnberg, Germany; K.I.S. Krankenhaus-Informationssysteme GmbH in Pliezhausen, Germany; and h/m systemtechnik GmbH & Co. KG in Reutlingen, Germany. Since 1998, he has been the managing director of AddOn Software GmbH in Neu-Ulm, Germany, where he is responsible for the ABAP and SAP NetWeaver Process Integration area. Michael Englbrecht, who holds a degree in computer science, studied at the University of Applied Sciences in Augsburg, Germany. He worked as a software developer and consultant for Tiscon Infosystems Ulm and MATHEMA AG. Since 2002, he has been a senior consultant at AddOn Software GmbH in Neu-Ulm, Germany. Here, he is responsible for the Enterprise Java and SAP NetWeaver J2EE/JEE area. His work focuses on integrating systems with the SAP Java landscape and planning and implementing service-oriented infrastructures, among other things.

* ... Preface ... 11 * 1 ... Basic Principles of SAP Interface Programming ... 13 * 1.1 ... SAP NetWeaver Application Server ... 13 * 1.1.1 ... SAP Solutions and SAP NetWeaver ... 13 * 1.1.2 ... SAP NetWeaver Application Server ABAP ... 16 * 1.1.3 ... SAP NetWeaver Application Server Java ... 29 * 1.2 ... Security ... 32 * 1.2.1 ... Security in Heterogeneous Landscapes ... 32 * 1.2.2 ... User Management Engine ... 36 * 1.2.3 ... KeyStores: Authentication, Signatures, Encryption ... 38 * 1.2.4 ... Authentication and Authorization ... 40 * 1.3 ... Programming SAP NetWeaver AS ABAP ... 57 * 1.3.1 ... ABAP Dictionary ... 58 * 1.3.2 ... Authentication and Authorization ... 63 * 1.3.3 ... Number Ranges ... 64 * 1.3.4 ... Function Modules ... 64 * 1.3.5 ... Update Modules ... 67 * 1.3.6 ... Application Functions and User Interfaces ... 68 * 1.4 ... Overview of SAP Interface Technologies ... 70 * 1.4.1 ... File Interface ... 70 * 1.4.2 ... Remote Function Call ... 72 * 1.4.3 ... BAPIs ... 82 * 1.4.4 ... Application Link Enabling ... 84 * 1.4.5 ... SOAP ... 90 * 1.4.6 ... XI SOAP ... 92 * 2 ... Remote Function Call with ABAP ... 95 * 2.1 ... RFC Function Modules in ABAP ... 95 * 2.1.1 ... Function Modules for Reading ... 95 * 2.1.2 ... Call via sRFC ... 98 * 2.1.3 ... Function Modules for Deleting and Changing ... 101 * 2.2 ... Transactional RFC ... 106 * 2.3 ... Queued RFC ... 111 * 2.3.1 ... qRFC with Outbound Queue ... 112 * 2.3.2 ... qRFC with Outbound and Inbound Queue ... 115 * 2.4 ... Business Objects and BAPIs ... 118 * 2.4.1 ... Developing Business Objects ... 118 * 2.4.2 ... Developing BAPIs ... 119 * 2.4.3 ... Helpvalues Business Object ... 141 * 3 ... Remote Function Call with C ... 145 * 3.1 ... C RFC Library ... 145 * 3.1.1 ... RFC Software Development Kit ... 146 * 3.1.2 ... Connection Tests ... 148 * 3.1.3 ... Compiling and Linking ... 152 * 3.2 ... Simple RFC Clients and RFC Parameters ... 153 * 3.2.1 ... Structure of an RFC Client Program ... 154 * 3.2.2 ... Simple Parameters ... 164 * 3.2.3 ... Structured Parameters ... 167 * 3.2.4 ... Table Parameters ... 171 * 3.3 ... More Complex RFC Clients ... 174 * 3.3.1 ... Calling BAPIs ... 174 * 3.3.2 ... Transactional RFC ... 177 * 3.3.3 ... Queued RFC ... 188 * 3.4 ... RFC Server ... 189 * 3.4.1 ... Logon to Gateway ... 192 * 3.4.2 ... Installing and Executing Functions ... 194 * 3.4.3 ... Dispatching ... 202 * 3.4.4 ... Transactional RFC ... 205 * 4 ... Remote Function Call with Java ... 217 * 4.1 ... SAP Java Connector ... 217 * 4.1.1 ... Installation ... 217 * 4.1.2 ... Architecture of SAP Java Connector ... 218 * 4.1.3 ... Programming with SAP Java Connector ... 220 * 4.1.4 ... Processing Tables and Structures ... 229 * 4.1.5 ... Transactional RFC ... 232 * 4.1.6 ... Queued RFC ... 234 * 4.1.7 ... Metadata Processing ... 236 * 4.2 ... Enterprise Connector ... 237 * 4.2.1 ... Generating Proxy Classes ... 238 * 4.2.2 ... Programming the Client ... 243 * 4.3 ... RFC Server ... 244 * 4.3.1 ... Server-Side and Client-Side Repository ... 245 * 4.3.2 ... Programming a Simple JCo Server ... 247 * 4.3.3 ... Registering a Function Handler ... 249 * 4.3.4 ... Managing Transactions ... 251 * 4.4 ... JCo RFC Provider Service ... 252 * 4.5 ... SAP NetWeaver Portal Connector Framework ... 256 * 4.5.1 ... Java Connector Architecture ... 257 * 4.5.2 ... System Landscape of the Portal ... 258 * 4.5.3 ... Introduction to Programming in the Portal ... 261 * 4.5.4 ... Application Example of the Connector Framework ... 264 * 5 ... IDocs and ALE ... 271 * 5.1 ... IDocs ... 272 * 5.1.1 ... Developing IDocs ... 272 * 5.1.2 ... Creating IDocs ... 275 * 5.1.3 ... Inbound Processing of IDocs ... 279 * 5.2 ... ALE ... 284 * 5.2.1 ... ALE Configuration ... 284 * 5.2.2 ... Testing and Monitoring ... 290 * 5.2.3 ... ALE Interface for BAPIs ... 292 * 5.3 ... IDoc Programming with the C RFC Library ... 296 * 5.3.1 ... IDoc Receiver ... 297 * 5.3.2 ... IDoc Sender ... 300 * 5.4 ... IDoc Programming with Java and JCo ... 302 * 5.4.1 ... Preparation for the Use of IDoc Libraries ... 302 * 5.4.2 ... Client Application for IDocs ... 303 * 5.4.3 ... IDoc Server ... 307 * 5.4.4 ... Configuration for the Dispatch of IDocs ... 310 * 6 ... Service-Oriented Architecture Protocol ... 311 * 6.1 ... Web Services and Clients with SAP NetWeaver AS ABAP ... 311 * 6.1.1 ... ABAP SOAP Web Service ... 311 * 6.1.2 ... ABAP SOAP Web Client ... 319 * 6.2 ... Web Services and Clients with SAP NetWeaver AS Java ... 323 * 6.2.1 ... Web Service Infrastructure in SAP NetWeaver AS Java ... 323 * 6.2.2 ... Web Service Provider with J2EE ... 326 * 6.2.3 ... Web Service Clients ... 333 * 6.2.4 ... Adaptive Web Service with Web Dynpro ... 338 * 6.3 ... SOAP Programming with Java ... 338 * 6.3.1 ... Java API for XML Web Services ... 338 * 6.3.2 ... Implementing a Web Service Client ... 340 * 6.3.3 ... Implementing a Web Service Provider ... 341 * 6.4 ... SOAP Programming with C ... 342 * 7 ... SAP NetWeaver Process Integration ... 347 * 7.1 ... SAP NetWeaver Exchange Infrastructure 3.0 ... 347 * 7.1.1 ... System Landscape Directory ... 349 * 7.1.2 ... Integration Repository ... 352 * 7.1.3 ... ABAP XI Proxies ... 356 * 7.1.4 ... Java XI Proxies ... 360 * 7.1.5 ... Integration Directory ... 366 * 7.2 ... SAP NetWeaver Process Integration 7.1 ... 372 * 7.2.1 ... Service Interfaces ... 372 * 7.2.2 ... ABAP SOAP Proxies ... 374 * 7.2.3 ... Java SOAP Proxies ... 383 * A ... Bibliography ... 391 * B ... The Authors ... 393 * ... Index ... 395