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.processor;
  
  import java.time.Duration;
  
  /**
   * Controls what notion of time is used for punctuation scheduled via
   * {@link org.apache.kafka.streams.processor.api.ProcessorContext#schedule(Duration, PunctuationType, Punctuator) schedule}:
   * <ul>
   *   <li>STREAM_TIME - uses "stream time", which is advanced by the processing of messages
   *   in accordance with the timestamp as extracted by the {@link TimestampExtractor} in use.
   *   <b>NOTE:</b> Only advanced if messages arrive</li>
   *   <li>WALL_CLOCK_TIME - uses system time (the wall-clock time),
   *   which is advanced at the polling interval ({@link org.apache.kafka.streams.StreamsConfig#POLL_MS_CONFIG})
   *   independent of whether new messages arrive. <b>NOTE:</b> This is best effort only as its granularity is limited
   *   by how long an iteration of the processing loop takes to complete</li>
   * </ul>
   */
  public enum PunctuationType {
     STREAM_TIME,
     WALL_CLOCK_TIME,
  }
  