Yi Pan (Data Infrastructure) created SAMZA-1101:
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Summary: Delay the creation of actual function to send to a
physical stream until OperatorImpl instantiation
Key: SAMZA-1101
URL: https://issues.apache.org/jira/browse/SAMZA-1101
Project: Samza
Issue Type: Bug
Reporter: Yi Pan (Data Infrastructure)
There are a few reasons for that:
# it helps to keep the logic StreamGraphImpl only refers to logic stream (i.e.
the physical stream properties should be populated by physical
ExecutionEnvironment)
# it helps to keep the OperatorSpec for sendTo() only containing spec info, not
physical implementation, which allows us to swap in collection-based or
file-based streams sendTo() function w/o the user program change
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