boyuanzz commented on a change in pull request #12287:
URL: https://github.com/apache/beam/pull/12287#discussion_r456196686
##########
File path:
runners/core-construction-java/src/main/java/org/apache/beam/runners/core/construction/graph/SplittableParDoExpander.java
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@@ -69,6 +69,31 @@ public static TransformReplacement createSizedReplacement() {
return SizedReplacement.INSTANCE;
}
+ /**
+ * Returns a transform replacement in drain mode which expands a splittable
ParDo from:
+ *
+ * <pre>{@code
+ * sideInputA ---------\
+ * sideInputB ---------V
+ * mainInput ---> SplittableParDo --> outputA
+ * \-> outputB
+ * }</pre>
+ *
+ * into:
+ *
+ * <pre>{@code
+ * sideInputA
---------\---------------------\----------------------\--------------------------\
+ * sideInputB
---------V---------------------V----------------------V--------------------------V
+ * mainInput ---> PairWithRestriction --> SplitAndSize --> TruncateAndSize
--> ProcessSizedElementsAndRestriction --> outputA
+ *
\-> outputB
+ * }</pre>
+ *
+ * .
Review comment:
This required by checkstyleMain: The first sentence should be ended with
a period.
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