nwangtw commented on a change in pull request #3112: [Java Streamlet API]
Support abstractions on Streamlet Operators
URL: https://github.com/apache/incubator-heron/pull/3112#discussion_r234708248
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File path:
heron/api/src/java/org/apache/heron/streamlet/impl/operators/TransformOperator.java
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@@ -41,10 +40,10 @@
*/
public class TransformOperator<R, T> extends StreamletOperator<R, T>
implements IStatefulComponent<Serializable, Serializable> {
+
private static final long serialVersionUID = 429297144878185182L;
private SerializableTransformer<? super R, ? extends T>
serializableTransformer;
- private OutputCollector collector;
Review comment:
I am thinking in the prepare() function, instead of setting collector
direction, it might be better to call super.prepare(...) instead. What do you
think?
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