boyuanzz commented on a change in pull request #15090:
URL: https://github.com/apache/beam/pull/15090#discussion_r665667563
##########
File path:
sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/KafkaIO.java
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@@ -838,6 +850,16 @@ public void setTimestampPolicy(String timestampPolicy) {
}
}
+ /**
+ * Sets nullKeyFlag for present of null keys
+ *
+ * <p>By default, nullKeyFlag is {@code false} and will invoke {@link
KafkaRecordCoder} when
+ * nullKeyFlag is {@code true}, it invokes {@link
NullableKeyKafkaRecordCoder}
+ */
+ public Read<K, V> withNullKeyFlag() {
Review comment:
Sure thing : )
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