org.rocksdb.Snapshot Maven / Gradle / Ivy
// 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;
/**
* Snapshot of database
*/
public class Snapshot extends RocksObject {
Snapshot(final long nativeHandle) {
super(nativeHandle);
// The pointer to the snapshot is always released
// by the database instance.
disOwnNativeHandle();
}
/**
* Return the associated sequence number;
*
* @return the associated sequence number of
* this snapshot.
*/
public long getSequenceNumber() {
return getSequenceNumber(nativeHandle_);
}
@Override
protected final void disposeInternal(final long handle) {
/**
* Nothing to release, we never own the pointer for a
* Snapshot. The pointer
* to the snapshot is released by the database
* instance.
*/
}
private native long getSequenceNumber(long handle);
}