BEA WebLogic Server™ 8.1 Unleashed
by Mark Artiges, Gupreet Singh Bhasin, Bernard Ciconte, Malcolm Garland, Saranathan Govindarajan, James Huang, Subramanian Kovilmadam, Kunal Mittal, Paul J. Perrone, Tom Schwenk, Steve Steffen
Connectivity to Legacy Systems
Over time, every system becomes a legacy system. Companies usually cannot afford to rewrite all their existing systems, so it becomes imperative that the new system be able to communicate with the old systems. This requires the people who know the older systems, both functionally and technically, to communicate what constitutes a logical transaction to the Java architects and programmers. Many legacy systems have already built adapters to work with Java, but if not, an interface might have to be written for the application to talk to Java. Most of the bigger ERP systems already have Java connectors, and with the release of the J2EE Connector Architecture (J2EE-CA) specification, they'll be coming out with J2EE-CA–compliant ...
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