kafka WindowUpdateStrategy 源码

  • 2022-10-20
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kafka WindowUpdateStrategy 代码

文件路径:/streams/src/main/java/org/apache/kafka/streams/kstream/internals/emitstrategy/WindowUpdateStrategy.java

/*
 * 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.emitstrategy;

import org.apache.kafka.streams.kstream.EmitStrategy;

/**
 * An emit strategy which indicates output everytime when a window gets an update.
 */
public class WindowUpdateStrategy implements EmitStrategy {

    @Override
    public StrategyType type() {
        return StrategyType.ON_WINDOW_UPDATE;
    }
}

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