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since the release of ibm visualage for java enterprise edition v3.53, the enterprise access builder (eab) tools have been able to generate code that conforms to the j2ee connector architecture (jca) specification, which allows java programs to access enterprise information systems (eis), such as sap, cics, ims, and other back-end systems, using a standard interface.
ibm websphere studio application developer integration edition (hereafter called integration edition) provides the next-generation tooling for enterprise connectivity. it features a websphere test environment that targets the powerful websphere application server enterprise edition.
a fix pack is now available that enables you to run jca applications developed in integration edition on the websphere application server advanced edition (hereafter called advanced edition). this article describes best practices for migrating your integration edition jca applications to advanced edition.
flow-based jca applications
create, deploy, and test the application in integration edition 【程序编程相关:Interview With Dan B】 business process flow technology is an important piece of the middleware stack that has recently been offered as part of the websphere platform. ibm has been offering flow technology in a number of products (most notably websphere mq workflow for people-based workflows, websphere mq integrator for message flows, websphere mq adapter offering for mq-based adapters, and enterprise access builder for java-based adapters), but no tight integration of flow technology has been available in the websphere platform until now. the pure-java flow engine, written as a websphere enterprise service, allows you to tightly integrate flow technology with all the other services offered by j2ee.integration edition provides visual flow-based tools in order to visually define the sequence and flow of information between application artifacts such as application adapters, javabean and enterprise bean components, web services, or other flows. in integration edition v4.11, only noninterruptible, short-running, and synchronous flows are supported. this type of flow is referred to as a microflow or a service flow. interruptible, long-running, and asynchronous flows are being planned for future releases of integration edition.
flows can only be run in the websphere application server enterprise edition. therefore, it is important to note that this article is only relevant to non-flow-based jca applications.
overview 【推荐阅读:Interview With Gorda】
integration edition v4.11 contains a local copy of the complete runtime environment of the websphere application server advanced single server edition (hereafter called advanced single server edition) v4.02 with enhancements to support jca and some features of the websphere enterprise extensions. this environment is called the websphere test environment. the jca tooling combined with the test environment provides you with a complete environment to develop and test your jca applications. the high-level steps to creating, deploying, and testing the jca application in integration edition are depicted in figure 1.
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