content: package org.apache.avro.mapreduce;
  
  /*
   * 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
   *
   * https://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.
   */
  import java.io.IOException;
  
  public interface Syncable {
  
    /**
     * Return the current position as a value that may be passed to
     * DataFileReader.seek(long). Forces the end of the current block, emitting a
     * synchronization marker.
     *
     * @throws IOException - if an error occurred while attempting to sync.
     */
    long sync() throws IOException;
  }
  