content: /*
   * 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;
  
  
  /**
   * The {@code ForeachAction} interface for performing an action on a {@link org.apache.kafka.streams.KeyValue key-value
   * pair}.
   * This is a stateless record-by-record operation, i.e, {@link #apply(Object, Object)} is invoked individually for each
   * record of a stream.
   * If stateful processing is required, consider using
   * {@link KStream#process(org.apache.kafka.streams.processor.api.ProcessorSupplier, String...) KStream#process(...)}.
   *
   * @param <K> key type
   * @param <V> value type
   *
   * @see KStream#foreach(ForeachAction)
   */
  @FunctionalInterface
  public interface ForeachAction<K, V> {
  
      /**
       * Perform an action for each record of a stream.
       *
       * @param key
       *        the key of the record
       * @param value
       *        the value of the record
       */
      void apply(final K key, final V value);
  }
  