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In this example, multiple independent branches, which are
executed in the multiple independent instances construct, converge
at a single activity in the process. The implementation of this
example involves using a loop and an asynchronous event type:
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Each branch instance, executed in the multiple independent
instances construct, ends with the throw of an asynchronous event
type.
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Following the loop that the multiple independent instances
construct contains is another loop that includes a receiver for
the event type. The receiver executes each time an instance of the
independent activity completes.
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A counter keeps track of the number of times the receiver
is executed.
The implementation of this example depends on
whether you used gateway elements or events to implement the multiple
independent instances construct.
Gateway implementation
The following illustration includes the
following elements:
Event implementation
The following illustration shows the event
throw at the end of the subprocess that is executed multiple times
in the multiple instances construct. The main process receives the
event inside a loop for tracking the number of subprocesses that
are complete.
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A.
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In the main process, multiple independent instances
construct
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B.
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Multiple instances
synchronization construct receives event
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C.
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Counts the number of received events
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D.
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In the subprocess, throws event upon completion
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