JCA Concepts
Prior to JCA, Java applications were extremely limited in their ability to interact with EISs. Integration required a large expenditure of resources and often resulted in overly complex and hard-to-maintain solutions. The major advantage of the JCA specification is that it is vendor-neutral and yet comprehensive enough to achieve its targeted objectives.
For application servers and EIS integration tool vendors, this is a major breakthrough. JCA converts the integration problem of “m × n” to “m + n.”
For example, if BEA had to provide system services and connectivity from its WebLogic Server to CICS, it had to develop a proprietary software component. If WebLogic Server needed to support another EIS with its application server, say, ...
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