About Resource Adapters
A resource adapter is a J2EE component that implements the J2EE Connector architecture for a specific EIS. As illustrated in Figure D-1, it is through the resource adapter that a J2EE application and an EIS communicate with each other.
Figure D-1. Resource Adapter Contracts
Stored in a Resource Adapter Archive (RAR) file, a resource adapter can be deployed on any J2EE server, much like the EAR file of a J2EE application. An RAR file may be contained in an EAR file, or it may exist as a separate file. See Figure D-2 for the structure of a resource adapter module.
Figure D-2. Resource Adapter Module Structure
A resource ...
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