5.3.1 Application Data Services Version Compatibility

This section explains how applications interact with DFCS based on glossary version compatibility. It covers:
  • First-time subscription rules
  • Upgrade of Application Data Services

1. First-Time Subscription

An application can subscribe to Application Data Services in DFCS only if the glossary version in DFCS is the same or lower than the application version.

Note:

  • If the DFCS glossary version is higher than the app version, Subscription is NOT allowed.
  • Check for Extension is initially disabled. Once DFCS subscription is successfully registered, Check for Extension becomes enabled.
Example
  • DFCS 26D contains Application Data Services for any OCI application such as PBSMCS, with glossary version 26B.
    • OCI application (PBSM) versions 26B, 26C, and 26D can subscribe to DFCS 26D.
  • DFCS 26A contains glossary version 26A for PBSMCS.
    • Any OCI application 26A can subscribe to DFCS 26A.

2. Upgrade of Application Data Services

If the App version is same or higher than the DFCS glossary version, the App can subscribe to the latest Application Connectors.

However, if DFCS is upgraded and its glossary version for the app is higher than the app version, the app will continue using the previously subscribed connector version. In this case, the App cannot access new extensions until it is upgraded to the latest compatible DFCS glossary version.

Note:

The ADS Connector supports multiple overrides for a given connector configuration. There are no restrictions on the number of overrides that can be defined.
Example
  • If DFCS upgrades to 26A and includes a OCI application (PBSMCS) glossary for 25D, and the OCI application has not yet upgraded to 26A, the OCI application will continue to receive upgrades, because the glossary version (25D) is not higher than the app version.
  • If DFCS upgrades to 26A and includes a OCI application (PBSMCS) glossary for 26A, and the OCI application remains at 25D, the OCI application will continue using the 25D Application Data Services it had before the DFCS upgrade. In this case, the OCI application will not receive new upgrades until it upgrades to 26A.