masteryhx commented on code in PR #24798: URL: https://github.com/apache/flink/pull/24798#discussion_r1602658277
########## flink-runtime/src/main/java/org/apache/flink/runtime/state/v2/ReducingStateDescriptor.java: ########## @@ -0,0 +1,74 @@ +/* + * 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.runtime.state.v2; + +import org.apache.flink.api.common.functions.ReduceFunction; +import org.apache.flink.api.common.serialization.SerializerConfig; +import org.apache.flink.api.common.typeinfo.TypeInformation; + +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * {@link StateDescriptor} for {@link org.apache.flink.api.common.state.v2.ReducingState}. + * + * @param <T> The type of the values that can be added to the state. + */ +public class ReducingStateDescriptor<T> extends StateDescriptor<T> { + + private final ReduceFunction<T> reduceFunction; + + /** + * Creates a new {@code ReducingStateDescriptor} with the given name and default value. + * + * @param name The (unique) name for the state. + * @param reduceFunction The {@code ReduceFunction} used to aggregate the state. + * @param typeInfo The type of the values in the state. + */ + public ReducingStateDescriptor( + String name, ReduceFunction<T> reduceFunction, TypeInformation<T> typeInfo) { + super(name, typeInfo, null); Review Comment: ```suggestion super(name, typeInfo); ``` -- 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. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
