johnyangk commented on a change in pull request #122: [NEMO-213] Use Beam's
DoFnRunners to execute DoFn
URL: https://github.com/apache/incubator-nemo/pull/122#discussion_r223660316
##########
File path:
compiler/frontend/beam/src/main/java/org/apache/nemo/compiler/frontend/beam/transform/GroupByKeyTransform.java
##########
@@ -40,23 +41,27 @@ public GroupByKeyTransform() {
}
@Override
- public void prepare(final Context context, final OutputCollector<KV<Object,
List>> oc) {
+ public void prepare(final Context context, final
OutputCollector<WindowedValue<KV<Object, List>>> oc) {
this.outputCollector = oc;
}
@Override
public void onData(final I element) {
- final KV kv = (KV) element;
+ // TODO #: support window in group by key
Review comment:
Mising TODO number
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