Web Services' Impact on Resource Adapters
The impact of Web Services on adapters is still undefined. Which of the two is better than the other depends on the integration scenario, the supporting infrastructure, and the available tools. A more immediate impact will be in categorizing and decomposing the integration logic into Web Services and/or resource adapters.
When should you develop a Web Service, and when should you develop a resource adapter? Can a Web Service do what a resource adapter does (provide EIS connectivity to J2EE applications)? Most likely yes, mainly due to the JCA-specific contracts defined in the J2EE environment. A Web Service will have to implement the JCA contracts in addition to receiving SOAP messages and publishing ...
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