vvcephei commented on a change in pull request #9338: URL: https://github.com/apache/kafka/pull/9338#discussion_r504936524
########## File path: streams/src/main/java/org/apache/kafka/streams/kstream/internals/WrappingNullableSerde.java ########## @@ -0,0 +1,36 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.kafka.streams.kstream.internals; + +import org.apache.kafka.common.serialization.Deserializer; +import org.apache.kafka.common.serialization.Serde; +import org.apache.kafka.common.serialization.Serializer; + +public interface WrappingNullableSerde<T, InnerK, InnerV> extends Serde<T> { + @SuppressWarnings({"unchecked", "rawtypes"}) + default void setIfUnset(final Serde<InnerK> defaultKeySerde, final Serde<InnerV> defaultValueSerde) { + final Serializer<T> serializer = this.serializer(); Review comment: No worries, I think this is actually always ok in practice, since I think that all the Wrapping implementations keep their de/serializers in fields anyway. But then again, we've had _so_ many bugs with serdes that I feel a bit twitchy about just ignoring the potential for a future bug that I happened to notice here. ---------------------------------------------------------------- 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
