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Web Dynpro Backend Access

The Web Dynpro Model is used to encapsulate the business logic and persistence. In many Web Dynpro applications, backend access is based on remote function call (RFC) modules in SAP systems, using the Adaptive RFC Model. Another important model is the Adaptive Web Service Model, that allows to communicate with any web service.



Model and Java Dictionary   (in SAP Help Portal)

Overview on the available models: Adaptive RFC Model, Adaptive Web Service Model and Java Bean Model.

Web Dynpro Model Tools   (on SAP Help Portal)

Documentation on the NetWeaver Developer Studios tools to work with models.

SAP System Landscape Directory: Post-Installation Guide   (PDF 294 KB)

This document describes the post-installation steps for SAP systems.


Tutorials & Samples for Web Dynpro Java 

Refer to section Backend Access/Model, there you can find tutorials regarding Adaptive RFC and Adaptive Web Service Model.

Component-based Development from Database Table to Web Dynpro using NWDI   (zip file 5, 45 MB)

In this tutorial the Adaptive Web Service Model is used to access the business logic, based on EJB, wrapped in a web service.
See also: How to Use the Tutorial Component-based Development from Database Table to Web Dynpro using NWDI


Effective Web Dynpro - Adaptive RFC Models   (PDF 143 KB)

This article reviews some basic principles and guidelines for the effective use of Adaptive RFC models in Web Dynpro.

Adaptive RFC Troubleshooting Guide   (PDF 356 KB)

Developer Arun Bhat of SAP Labs, India organized this handy reference guide for solving common issues with Adaptive RFC models in the Web Dynpro Java runtime.

Metadata Cache Invalidation for Adaptive RFC Models   (PDF 1 MB)

This article gives solutions and best practices while using the adaptive RFC model in Web Dynpro Java. It focuses on the adaptiveness itself when the backend system has been changed and gives examples.

How to Configure the JCo Destination Settings   (PDF 318 KB)

This article describes how to configure the JCo destinations when using the adaptive RFC model to access an SAP R/3 backend system within a Web Dynpro application.

JCo Quick Summary   (PDF 168 KB)

This presentation describes the relationship between Web Dynpro model objects, JCo Connection Pools, and ABAP sessions within an SAP system.

FAQ on Adaptive RFC Model   (Wiki)

FAQ site on wiki.


With NetWeaver 2004, SP 17 and NetWeaver 7.0, SP 08 a new Web Service Model was introduced: The Adaptive Web Service Model. This model provides improved security features and allows separation between development and administration tasks by using logical destinations.

Using the Adaptive Web Service Model   (PDF 542 KB)

Basic information on the new Adaptive Web Service Model.

FAQ on Adaptive Web Service Model   (Wiki)

FAQ site on wiki.

Migration Guide: Web Service Model to Adaptive Web Service Model 

This article explains the reasons why the Web Service Model was deprecated and the process to be followed in adopting Adaptive Web Service model. The document acts as migration guide for the developers of Web Dynpro Java application to help switching to Adaptive Web Service Model (AWS) from Web Service model.

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