Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/1072#discussion_r57143217
--- Diff: storm-core/src/jvm/org/apache/storm/trident/Stream.java ---
@@ -594,19 +607,155 @@ 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 no of tuples in the window
+ * @param windowStoreFactory intermediary tuple store for storing
windowing tuples
+ * @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 tumblingWindow(int windowCount, WindowsStoreFactory
windowStoreFactory,
+ Fields inputFields, Aggregator
aggregator, Fields functionFields) {
+ return window(TumblingCountWindow.of(windowCount),
windowStoreFactory, inputFields, aggregator, functionFields);
+ }
+
+ /**
+ * Returns a stream of tuples which are aggregated results of a
sliding window with every {@code windowCount} of tuples
+ * and slides the window with {@code slideCount}.
+ *
+ * @param windowCount represents tuples count of a window
+ * @param slideCount the number of tuples after which the window slides
+ * @param windowStoreFactory intermediary tuple store for storing
windowing tuples
+ * @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
--- End diff --
`@return the new Stream`
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