Developer's Guide to SAP NetWeaver Composition Environment

Jan Rauscher has been working at SAP since 1998. After six years of development work in Product Lifecycle Management, he changed to SAP NetWeaver Product Management. There, he assumed rollout tasks for composite applications tools (Composite Application Framework, Guided Procedures, Application Server). In this position, he is responsible for preparing and implementing training and workshops, as well as for creating demo applications that illustrate the options of the new SAP NetWeaver Composition Environment (SAP NetWeaver CE). Moreover, he supports consultants and colleagues with regard to technical questions on SAP NetWeaver CE, for example, during the ramp-up phase or installation. Currently, he assumes responsibility for the rollout of SAP NetWeaver CE at conferences and on the SDN website (http: //sdn.sap.com/irj/sdn/ce). His email address is jan.rauscher@sap.com. Volker Stiehl studied Computer Sciences at the Friedrich-Alexander-University Erlangen-Nuremberg, Germany. When he joined SAP in 2004, his primary focus was on presales activities involving the Java EE stack of the SAP Web Application Server. In summer 2005, he joined the product management team of the Composite Application Framework where he was responsible for preparing specifications for composite applications development. With the introduction of SAP NetWeaver CE, his area of responsibility was extended to include the design of composite application architectures and their implementation using composition tools, such as the Composite Application Framework, Guided Procedures framework, or the SAP NetWeaver Visual Composer. Volker Stiehl speaks regularly at various conferences, such as SAP TechEd, SAPPHIRE, and JavaOne, about the topics related to the architecture and development of composite applications. Prior to joining SAP, he worked at Siemens as a consultant for distributed J2EE-based architectures and integration architectures using SAP integration technologies. Volker Stiehl's email address is volker.stiehl@sap.com.

Foreword ... 13 Introduction ... 17 1 Composite Applications ... 23 ... 1.1 Explanation and Benefits ... 24 ... 1.2 Basic Assumptions ... 25 ... 1.3 Architecture ... 27 ... 1.4 SAP NetWeaver Composition Environment ... 35 2 Development of a Sample Application ... 41 ... 2.1 Modeling Business Objects with the Composite Application Framework ... 43 ... 2.2 Modeling User Interfaces with the SAP NetWeaver Visual Composer ... 66 ... 2.3 Modeling Processes with Guided Procedures ... 93 ... 2.4 Testing Composite Applications ... 118 3 SAP Composite Application Framework ... 127 ... 3.1 Relationships Between Business Objects ... 128 ... 3.2 Authorization Concepts for Business Objects ... 139 ... 3.3 Remote Persistence of Business Objects ... 148 ... 3.4 Application Services with Business Logic and Web Services ... 175 4 SAP NetWeaver Visual Composer ... 195 ... 4.1 Modeling a Wizard ... 196 ... 4.2 Modeling Result States ... 204 5 Guided Procedures ... 213 ... 5.1 Definition of a Callable Object ... 214 ... 5.2 Process Actions ... 245 ... 5.3 Blocks ... 259 ... 5.4 Processes ... 260 ... 5.5 Forms in Guided Procedures ... 268 ... 5.6 Guided Procedures Administration ... 287 6 Specification of Composite Applications ... 301 ... 6.1 General Information on the Composite Application ... 304 ... 6.2 Process Information ... 305 ... 6.3 Exception Handling ... 309 ... 6.4 Business Objects ... 311 ... 6.5 User Interfaces ... 315 ... 6.6 Services ... 318 ... 6.7 Transferring the Specification to the Architect ... 320 7 Summary and Outlook ... 323 Appendix ... 327 ... A Installation and Development Landscape ... 327 ... B The Authors ... 355 Index ... 357