6.6. Emerging Integration Technology
6.6.1. Java Connector Architecture
Java Connector Architecture (JCA) provides a standard architecture for connecting to Enterprise Information Systems such as mainframe legacy systems and Enterprise Resource Planning systems. Figure 6-2 shows a high-level architecture. Java Connector provides a Resource Adapter that enables J2EE application components to connect to Enterprise Information Systems (EIS) or legacy mainframe systems. Any J2EE application component needs to establish application contracts with the Resource Adapter. The Resource Adapter provides Common Client Interface (CCI) to connect the EIS. When an established system contracts with the J2EE application server and the application contracts with ...
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