lang/java/mapred/src/main/java/org/apache/avro/mapreduce/Syncable.java

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;
}