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RocksDB fat jar that contains .so files for linux64, jnilib files for Mac OSX, and a .dll for Windows x64. It contains the Yamcs merge operator for the Parameter Archive

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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;

/**
 * Uint64AddOperator is a merge operator that accumlates a long
 * integer value.
 */
public class UInt64AddOperator extends MergeOperator {
    public UInt64AddOperator() {
        super(newSharedUInt64AddOperator());
    }

    private static native long newSharedUInt64AddOperator();
    @Override
    protected final void disposeInternal(final long handle) {
      disposeInternalJni(handle);
    }
    private static native void disposeInternalJni(final long handle);
}