Github user ishark commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/137#discussion_r48381493
--- Diff: library/src/main/java/com/datatorrent/lib/parser/Parser.java ---
@@ -61,25 +70,48 @@ public void setup(PortContext context)
}
};
- @OutputPortFieldAnnotation(optional = true)
public transient DefaultOutputPort<INPUT> err = new
DefaultOutputPort<INPUT>();
--- End diff --
Would it be good to have default as emitting same input to error port and
logging error.
If transformation is needed, like you suggested, users can add/override
additional port for processedError or connect another operator for error
processing to the default error port, whichever applies to specific scenario.
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