Objectives of JCA Specifications
The objective of JCA is quite simply to enable J2EE applications to integrate with legacy applications and other emerging technologies known in JCA terms as Enterprise Information Systems (EIS). From a J2EE application's perspective, an EIS manages information resources either in the form of databases or real-time information.
J2EE is a component-based application platform, and as such, a business application will be decomposed into many different types of components. One type of component is a JCA-compliant resource adapter. Although there are no restrictions on how many resource adapters can be developed and deployed, typically there is one resource adapter for an EIS. This does not mean that there cannot be ...
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