Overview

Adabas/Natural programs can be executed using the iWay Transaction Adapter for CICS. Two programs, AASNATC and AASSUBC, which comprise the Adabas/Natural interface, are packaged with the iWay Service Manager (SM) installation and must be installed in the CICS region. These programs function as an interface between the Natural environment and the CICS/DPL environment, and have the following roles:

The following diagram illustrates the end-to-end data flow for a service request to a Natural program.

The following steps outline the call flow:

  1. The iWay Transaction Adapter for CICS receives an input XML document.
  2. The adapter wraps the user COMMAREA with Natural Control information, and sends it to AASNATC.
  3. The AASNATC program invokes the Natural environment with the Natural program name and logon parameters.
  4. The Natural program receives control and reads the input COMMAREA using AASSUBC. After processing the data, it uses AASSUBC again to write the ouput COMMAREA and returns control to AASNATC.
  5. AASNATC constructs the return COMMAREA and returns it to the adapter (via the mirror).
  6. The adapter returns the output XML document to the caller.

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