Port References and Dynamic Ports
A port reference is a handle that can be passed into or out of an XLANG schedule instance. This handle represents a real port instance (not just a name), and its type depends on the technology used to implement the port. Whenever you add a port to an XLANG schedule drawing, a new port reference field is added to the Port References message on the Data page. This port reference can be passed around as a field inside a message.
If the port can be completely specified at design time, then at runtime the XLANG Scheduler Engine can connect to the actual object specified based entirely on the information provided at design time. The port instance is constructed a priori, or in some cases, by the engine. Such a port ...
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