/* * 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.state; import org.apache.kafka.common.annotation.InterfaceStability; import org.apache.kafka.streams.processor.StateStore; /** * A windowed store interface extending {@link StateStore}. * * @param <K> Type of keys * @param <V> Type of values */ @InterfaceStability.Unstable public interface WindowStore<K, V> extends StateStore, ReadOnlyWindowStore<K, V> { /** * Put a key-value pair with the current wall-clock time as the timestamp * into the corresponding window */ void put(K key, V value); /** * Put a key-value pair with the given timestamp into the corresponding window */ void put(K key, V value, long timestamp); }