ceph/src/rocksdb/java/src/main/java/org/rocksdb/TraceWriter.java

   1 // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5
   6 package org.rocksdb;
   7
   8 /**
   9  * TraceWriter allows exporting RocksDB traces to any system,
  10  * one operation at a time.
  11  */
  12 public interface TraceWriter {
  13
  14   /**
  15    * Write the data.
  16    *
  17    * @param data the data
  18    *
  19    * @throws RocksDBException if an error occurs whilst writing.
  20    */
  21   void write(final Slice data) throws RocksDBException;
  22
  23   /**
  24    * Close the writer.
  25    *
  26    * @throws RocksDBException if an error occurs whilst closing the writer.
  27    */
  28   void closeWriter() throws RocksDBException;
  29
  30   /**
  31    * Get the size of the file that this writer is writing to.
  32    *
  33    * @return the file size
  34    */
  35   long getFileSize();
  36 }