klion26 commented on a change in pull request #11518: [FLINK-16555] Block Enum as key type URL: https://github.com/apache/flink/pull/11518#discussion_r399933141
########## File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/KeyedStream.java ########## @@ -210,14 +211,15 @@ public KeyedStream(DataStream<T> dataStream, KeySelector<T, KEY> keySelector, Ty * the {@link Object#hashCode()} implementation.</li> * <li>it is an array of any type (see {@link PrimitiveArrayTypeInfo}, {@link BasicArrayTypeInfo}, * {@link ObjectArrayTypeInfo}).</li> + * <li>it is enum type</li> * </ol>, * {@code true} otherwise. */ private boolean validateKeyTypeIsHashable(TypeInformation<?> type) { try { return (type instanceof PojoTypeInfo) ? !type.getTypeClass().getMethod("hashCode").getDeclaringClass().equals(Object.class) - : !(type instanceof PrimitiveArrayTypeInfo || type instanceof BasicArrayTypeInfo || type instanceof ObjectArrayTypeInfo); + : !(type instanceof PrimitiveArrayTypeInfo || type instanceof BasicArrayTypeInfo || type instanceof ObjectArrayTypeInfo || type instanceof EnumTypeInfo); Review comment: Do we need to extract this logic to a separate function? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services