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
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@@ -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?
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