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Do More with SOA Integration: Best of Packt by Doug Todd, Arun Poduval

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Chapter 14. SOA Integraton—Scenario in Detail

We are now going to show an example in detail for—Web Enablement. We will use JSP, JDBC, the Oracle Legacy Adapter, Oracle Application Server, Java EE Connector API, and XA transaction processing to show a two-phase commit across an Oracle database and VSAM on the mainframe.

Why access legacy data instead of CICS, or presentation-tier integration? This is ultimately the source of the truth. This is where the data you want is contained. If you are using any of the other three artifacts, these methods will ultimately call the data store. We have access to the COBOL copybooks and actual VSAM file so there is no need to perform presentation tier integration.

Another reason for choosing VSAM with Java EE ...

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