content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.journalv0;
  
  import alluxio.proto.journal.Journal.JournalEntry;
  
  import java.io.IOException;
  
  /**
   * This output stream writes {@link JournalEntry} objects to the journal. This output stream can
   * write to both the journal checkpoint and the journal logs.
   */
  public interface JournalOutputStream extends AutoCloseable {
    /**
     * Writes a {@link JournalEntry} to the journal.
     *
     * @param entry the entry to write to the journal
     */
    void write(JournalEntry entry) throws IOException;
  
    /**
     * Closes the stream.
     */
    void close() throws IOException;
  
    /**
     * Flushes the stream.
     */
    void flush() throws IOException;
  }
  