storm-client/src/jvm/org/apache/storm/trident/windowing/config/SlidingCountWindow.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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.storm.trident.windowing.config;

import org.apache.storm.trident.windowing.strategy.SlidingCountWindowStrategy;
import org.apache.storm.trident.windowing.strategy.WindowStrategy;

/**
 * Represents configuration of sliding window based on count of events. Window of length {@code windowLength} slides at every count of given
 * {@code slideLength}
 */
public final class SlidingCountWindow extends BaseWindowConfig {

    private SlidingCountWindow(int windowLength, int slideLength) {
        super(windowLength, slideLength);
    }

    public static SlidingCountWindow of(int windowCount, int slidingCount) {
        return new SlidingCountWindow(windowCount, slidingCount);
    }

    @Override
    public <T> WindowStrategy<T> getWindowStrategy() {
        return new SlidingCountWindowStrategy<>(this);
    }
}