[GitHub] [kafka] philipnee commented on a diff in pull request #12663: [Consumer Refactor] Define event handler interface and events

[GitBox <gi...@apache.org>]

philipnee commented on code in PR #12663:
URL: https://github.com/apache/kafka/pull/12663#discussion_r975641032


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clients/src/main/java/org/apache/kafka/clients/consumer/internals/EventHandler.java:
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@@ -0,0 +1,29 @@
+/*
+ * 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.clients.consumer.internals;
+
+/**
+ * The EventHandler interfaces the client and handler implementation.  The client should add an event for consumption,
+ * and try to poll for the responses.  Here, one could poll a response with type K, and add a request with type T.
+ * @param <T> Event request type
+ * @param <K> Event response type
+ */
+public interface EventHandler<T, K> {

Review Comment:
   That's a good point, I think I was trying to make it a generic handler but we don't really need it at this point.



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