CICS ECI Resource Adapter

The CICS resource adapter makes use of interfaces within J2EE Connector Architecture to facilitate the communication between J2EE applications and CICS information systems. The JCA defines a programming interface called the Common Client Inteface (CCI). This interface can be used, with minor changes, to communicate with any EIS. This CICS Transaction Gateway provides resource adapters that implement the CCI for interfactions with CICS.

• ECIResourceAdapter (IBM : 5.1): This version of the CICS ECI resource adapter is based on Version 1.0 of the J2EE Connector Architecture (JCA 1.0). Because CICS ECI resource adapter for Java verion 5.1 is a JCA 1.0 resource adapter, it will only run in a JCA 1.0 application server or WAS version 5.0.2 (or above). Select CICS 5.1 resource adapter if targeting a WAS v 5.0 server.
• ECIResourceAdapter (IBM : 6.0.2): This version of the CICS ECI resource adapter is based on version 1.5 of the JCA (JCA 1.5). It runs on WAS 6.0.
• ECIResourceAdapter (IBM : 7.0.0): This version based on JCA 1.5. It runs on WAS 6.1.

If you select Configure Resource Adapter Deployment on the Deployment Information page of the J2C wizard, you can use the Resource Adapter Deployment page to configure RAR.

The resource adapter can be deployed as a standalone resource adapter or as part of an EAR file. Typical environments use the standalone method, giving all modules on the application server visibility to the adapter.

Note: Multiple resource adapters should not be installed as standalone on the same runtime server, especially if they are for the same EIS type (for example, CICS ECI 5.1 and CICS ECI 6.2). This is because all standalone resource adapters share the same class loader.

My note: It's probably easier for application maintanence to deploy the adapter per EAR file.