Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/1072#discussion_r55989920
--- Diff: storm-core/src/jvm/org/apache/storm/trident/Stream.java ---
@@ -565,19 +578,169 @@ public Stream aggregate(Fields inputFields,
ReducerAggregator agg, Fields functi
.aggregate(inputFields, agg, functionFields)
.chainEnd();
}
-
+
+ /**
+ * Returns a stream of tuples which are aggregated results of a
tumbling window with every {@code windowCount} of tuples.
+ *
+ * @param windowCount represents window tuples count
+ * @param inputFields projected fields for aggregator
+ * @param aggregator aggregator to run on the window of tuples to
compute the result and emit to the stream.
+ * @param functionFields fields of values to emit with aggregation.
+ *
+ * @return
+ */
+ public Stream tumblingCountWindow(int windowCount, Fields inputFields,
Aggregator aggregator, Fields functionFields) {
--- End diff --
The various windowing configurations can be expressed with the
`window(WindowConfig windowConfig,...)`. If we are adding wrappers over it, can
you please maintain compatibility with the core apis ?
i.e,
```java
tumblingWindow(Count count)
tumblingWindow(Duration duration)
window(Count windowLength, Count slidingInterval)
window(Duration windowLength, Duration slidingInterval)
```
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