org.rocksdb.MemTableConfig Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of rocksdbjni Show documentation

RocksDB fat jar that contains .so files for linux32 and linux64 (glibc and musl-libc), jnilib files for Mac OSX, and a .dll for Windows x64.

There is a newer version: 0.1.0-RC.5

Show newest version

// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
//  This source code is licensed under both the GPLv2 (found in the
//  COPYING file in the root directory) and Apache 2.0 License
//  (found in the LICENSE.Apache file in the root directory).
package org.rocksdb;

/**
 * MemTableConfig is used to config the internal mem-table of a RocksDB.
 * It is required for each memtable to have one such sub-class to allow
 * Java developers to use it.
 *
 * To make a RocksDB to use a specific MemTable format, its associated
 * MemTableConfig should be properly set and passed into Options
 * via Options.setMemTableFactory() and open the db using that Options.
 *
 * @see Options
 */
public abstract class MemTableConfig {
  /**
   * This function should only be called by Options.setMemTableConfig(),
   * which will create a c++ shared-pointer to the c++ MemTableRepFactory
   * that associated with the Java MemTableConfig.
   *
   * @see Options#setMemTableConfig(MemTableConfig)
   *
   * @return native handle address to native memory table instance.
   */
  abstract protected long newMemTableFactoryHandle();
}