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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.

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// 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;

/**
 * TableFormatConfig is used to config the internal Table format of a RocksDB.
 * To make a RocksDB to use a specific Table format, its associated
 * TableFormatConfig should be properly set and passed into Options via
 * Options.setTableFormatConfig() and open the db using that Options.
 */
public abstract class TableFormatConfig {
  /**
   * This function should only be called by Options.setTableFormatConfig(),
   * which will create a c++ shared-pointer to the c++ TableFactory
   * that associated with the Java TableFormatConfig.
   *
   * @return native handle address to native table instance.
   */
  abstract protected long newTableFactoryHandle();
}