zhuzhurk commented on a change in pull request #11647: [FLINK-16960][runtime]
Add PipelinedRegion interface
URL: https://github.com/apache/flink/pull/11647#discussion_r404524838
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/topology/Topology.java
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@@ -39,4 +39,26 @@
* @return whether the topology contains co-location constraints
*/
boolean containsCoLocationConstraints();
+
+ /**
+ * Returns all pipelined regions in this topology.
+ *
+ * @return Iterable over pipelined regions in this topology
+ */
+ default Iterable<PipelinedRegion<VID, RID, V, R>>
getAllPipelinedRegions() {
Review comment:
I think we can have an `ExecutionPipelinedRegion` class which implements the
`PipelinedRegion` interface.
Similar to `Topology` -> `SchedulingTopology`.
The `SchedulingStrategy` should operate on `ExecutionPipelinedRegion`
instead.
Note that we already have a `LogicalPipelinedRegion` and I think we should
also rework it. Then this method does not need to be default since
`LogicalTopology` can also return logical regions (we already have this method
implementation).
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