Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/5977#discussion_r188205000
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/functions/RuntimeContext.java
---
@@ -71,6 +71,17 @@
@PublicEvolving
MetricGroup getMetricGroup();
+ /**
+ * Returned value is guaranteed to be unique between operators within
the same job and to be
+ * stable and the same across job submissions.
+ *
+ * <p>This operation is currently only supported in Streaming
(DataStream) contexts.
+ *
+ * @return String representation of the operator's unique id.
+ */
+ @PublicEvolving
+ String getOperatorUniqueID();
--- End diff --
I'm slightly leaning towards Stephan's suggestion, which I also agree is
the better solution for this case.
It might be ok to have this as a "hidden" API for now anyways, since 1) it
is marked `@PublicEvolving`, and 2) the API was added in quite a short
timeframe.
If we want this fix in 1.5, I wouldn't suggest "fully" exposing it.
---
