ceph/src/rocksdb/java/src/main/java/org/rocksdb/CompactionOptionsFIFO.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  * Options for FIFO Compaction
  10  */
  11 public class CompactionOptionsFIFO extends RocksObject {
  12
  13   public CompactionOptionsFIFO() {
  14     super(newCompactionOptionsFIFO());
  15   }
  16
  17   /**
  18    * Once the total sum of table files reaches this, we will delete the oldest
  19    * table file
  20    *
  21    * Default: 1GB
  22    *
  23    * @param maxTableFilesSize The maximum size of the table files
  24    *
  25    * @return the reference to the current options.
  26    */
  27   public CompactionOptionsFIFO setMaxTableFilesSize(
  28       final long maxTableFilesSize) {
  29     setMaxTableFilesSize(nativeHandle_, maxTableFilesSize);
  30     return this;
  31   }
  32
  33   /**
  34    * Once the total sum of table files reaches this, we will delete the oldest
  35    * table file
  36    *
  37    * Default: 1GB
  38    *
  39    * @return max table file size in bytes
  40    */
  41   public long maxTableFilesSize() {
  42     return maxTableFilesSize(nativeHandle_);
  43   }
  44
  45   private native void setMaxTableFilesSize(long handle, long maxTableFilesSize);
  46   private native long maxTableFilesSize(long handle);
  47
  48   private native static long newCompactionOptionsFIFO();
  49   @Override protected final native void disposeInternal(final long handle);
  50 }