Communication with Embedded XI 

The following documentation describes an integration scenario in which you can install an SAP application together with an embedded XI on SAP Web Application Server 6.40. An additional business system is connected to the Integration Server of the embedded XI by means of proxies or the adapter runtime. This business system can assume the role of either a sender system (using client proxies) or a receiver system (using server proxies), or both.

SAP systems up to and including Release 4.6 are not able to exchange data by using messages and HTTP. Such systems can only connect to the Integration Server by means of the IDoc adapter or the RFC adapter.

You do not need an exclusive installation of SAP Web Application Server 6.40 for embedded XI.

Prerequisites

·        An SAP application is the only application that you can run embedded XI with on an application server; the SAP application must explicitly allow the use of this system constellation.

·        Embedded XI must be installed in a separate client.

·        You can only have one installation of embedded XI on an application server.

·        Embedded XI is only released for Unicode systems.

Description

An application in a business system calls, for example, a client proxy to send a message. The proxy runtime receives the message from a business sender system and the Integration Server of the embedded XI processes the message further.

To forward messages to a receiver business system, the proxy runtime receives the message in the receiver system, and then calls the Java class that implements the relevant server proxy.

Example

A business system uses a client proxy or the adapter runtime to send a message to the Integration Server of the embedded XI. The message is then processed by the Integration Server. Two receivers are determined:

·        Another Web AS 6.40 system

·        A system that cannot receive messages directly (for example, an SAP 4.0B system)

On the receiver side, the SAP Web AS 6.40-based system receives a message, which is used by a server proxy to call the Java class. The other receiver system must be connected by means of the IDoc adapter or the RFC adapter.