org.rocksdb.Filter 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;
/**
* Filters are stored in rocksdb and are consulted automatically
* by rocksdb to decide whether or not to read some
* information from disk. In many cases, a filter can cut down the
* number of disk seeks form a handful to a single disk seek per
* DB::Get() call.
*/
public abstract class Filter extends RocksObject {
protected Filter(final long nativeHandle) {
super(nativeHandle);
}
/**
* Deletes underlying C++ filter pointer.
*
* Note that this function should be called only after all
* RocksDB instances referencing the filter are closed.
* Otherwise an undefined behavior will occur.
*/
@Override
protected void disposeInternal() {
disposeInternal(nativeHandle_);
}
@Override
protected final native void disposeInternal(final long handle);
}