BenWhitehead commented on a change in pull request #15005:
URL: https://github.com/apache/beam/pull/15005#discussion_r666363059
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/firestore/FirestoreDoFn.java
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@@ -46,6 +46,22 @@
@StartBundle
public abstract void startBundle(DoFn<InT, OutT>.StartBundleContext context)
throws Exception;
+ abstract static class NonWindowAwareDoFn<InT, OutT> extends
FirestoreDoFn<InT, OutT> {
+ /**
+ * {@link ProcessContext#element() context.element()} must be non-null,
otherwise a
+ * NullPointerException will be thrown.
Review comment:
Apologies, I will need to rename this class. I'm leaning toward the new
name being `ImplicitlyWindowedDoFn`, because output will exclusively use
`DoFn.WindowedContext#output(OutputT)` whereas the `WindowAwareDoFn` may also
output during `@FinishBundle` and must explicitly provide the window via
`DoFn.FinishBundleContext#output(OutputT, org.joda.time.Instant,
org.apache.beam.sdk.transforms.windowing.BoundedWindow)`
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