Support for Packaging and Deployment
A resource adapter is essentially a set of classes; some implement JCA contracts or interfaces, and others implement the services and functions interacting with the EIS. There can also be external libraries and drivers, such as JDBC drivers, or network drivers, or middleware drivers necessary for the resource adapter to interact with the EIS. All these classes, together with a deployment descriptor, are packaged as a resource adapter module. This module is an extension of the application server, and the deployment descriptor defines a contract between the resource adapter provider (developers) and the resource adapter deployer.
A J2EE application is composed of one or more J2EE modules, such as an EJB module, ...
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