Message Flow from the Sender

Use

In the graphic the message flow is represented from the sender direction to the Integration Server or to the Advanced Adapter Engine Extended.

Features

The message flow from the sender system to the Integration Server or the Advanced Adapter Engine Extended includes the following steps:

• A message from an external system is transferred to the JCA resource adapter (JCA RA).
• The JCA resource adapter either calls the module processor of the Adapter Framework (AF MP) directly or it calls its own conversion Enterprise JavaBeans first.
• In any event, the message must go through the module processor to ensure that the module interfaces are taken into account.

  The module processor can be created using the ModuleProcessorFactory.getModuleProcessor()method. It provides an implementation of the ModuleProcessor interface, which uses the process() method to receive messages.

  More information: Adapter Framework Module Interfaces

• You can also use adapter-specific Adapter Framework modules, either before or after message transfer to the Adapter Framework messaging service (XI AF MS).

  The Adapter Framework provides the module CallSapAdapter for transferring a message to the messaging service. This module should always be in the module chain in sender channels. Before this module is called, the adapter or its modules must convert the message to a Java object that implements the XI message interface.

• Finally, the Adapter Framework messaging service (AF MS) receives the message and saves it (if it is sent asynchronously) or sends a response message (if it is transferred synchronously). Adapter-specific modules can be called on the way back to the JCA resource adapter.