reuvenlax commented on code in PR #17359:
URL: https://github.com/apache/beam/pull/17359#discussion_r849952642
##########
sdks/java/core/src/main/java/org/apache/beam/sdk/state/Timer.java:
##########
@@ -99,6 +99,12 @@ public interface Timer {
*/
Timer withOutputTimestamp(Instant outputTime);
+ /**
+ * Asserts that there is no output timestamp. The output watermark will not
be held up, and it is
+ * illegal to output messages from this timer.
Review Comment:
To be precise, illegal to output messages using the default timestamp
(outputWithTimestamp is still allowed).
##########
runners/core-java/src/main/java/org/apache/beam/runners/core/SimpleDoFnRunner.java:
##########
@@ -1251,7 +1262,7 @@ private void setAndVerifyOutputTimestamp() {
:
PeriodFormat.getDefault().print(fn.getAllowedTimestampSkew().toPeriod()),
BoundedWindow.TIMESTAMP_MAX_VALUE));
}
- } else if (TimeDomain.EVENT_TIME.equals(spec.getTimeDomain())) {
+ } else if (!noOutputTimestamp &&
TimeDomain.EVENT_TIME.equals(spec.getTimeDomain())) {
Review Comment:
This was a bug - good catch.
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