Rational Developer for System z

Multiple host connections

You can define more than one host connection in a service flow project.

There are various scenarios in which you might want to define multiple host connections in a service flow project.

One possible scenario is that you have created a flow that controls a terminal application (or possibly multiple terminal applications) on a single host system, but you want to use this flow with several different host systems. For example: In this type of scenario, the terminal application (or multiple terminal applications) that the flow controls are all available on each host system. You test the flow with each host system separately. When you run the flow, it connects to only one host system.

Another possible scenario is that you are developing an "aggregate flow" that includes two or more individual flows, and each individual flow accesses a terminal application running on a different host system. For example:
Note: For an aggregate flow like this, which accesses terminal applications on multiple host systems:
  • Each host connection must reside in a separate terminal applications subproject.
  • Of the runtime environments for which the service flow project tools can generate runtime code, only the CICS® Service Flow Runtime environment supports this type of flow.

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