KurtYoung commented on a change in pull request #8015: [FLINK-11974][streaming] Introduce StreamOperatorSubstitutor to help table perform the whole Operator CodeGen URL: https://github.com/apache/flink/pull/8015#discussion_r267309671
########## File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/StreamOperatorSubstitutor.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.flink.streaming.api.operators; + +/** + * Basic interface for stream operator substitutes. It is transferred to the streamTask by + * serialization, and produce an actual stream operator to the streamTask, who uses the actual + * stream operator to run. + * + * @param <OUT> output type of the actual stream operator + */ +public interface StreamOperatorSubstitutor<OUT> { + + /** + * Produces the actual stream operator. + * + * @param userCodeClassLoader the user code class loader to use. + * @return the actual stream operator created on {@code StreamTask}. Review comment: the actual stream operator which will be used by {@code StreamTask}. ---------------------------------------------------------------- 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: [email protected] With regards, Apache Git Services
