ceph/src/rocksdb/java/src/main/java/org/rocksdb/PersistentCache.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  * Persistent cache for caching IO pages on a persistent medium. The
  10  * cache is specifically designed for persistent read cache.
  11  */
  12 public class PersistentCache extends RocksObject {
  13
  14   public PersistentCache(final Env env, final String path, final long size,
  15       final Logger logger, final boolean optimizedForNvm)
  16       throws RocksDBException {
  17     super(newPersistentCache(env.nativeHandle_, path, size,
  18         logger.nativeHandle_, optimizedForNvm));
  19   }
  20
  21   private native static long newPersistentCache(final long envHandle,
  22     final String path, final long size, final long loggerHandle,
  23     final boolean optimizedForNvm) throws RocksDBException;
  24
  25   @Override protected final native void disposeInternal(final long handle);
  26 }