| // 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; |
| |
| /** |
| * Base class for comparators which will receive |
| * ByteBuffer based access via org.rocksdb.DirectSlice |
| * in their compare method implementation. |
| * |
| * ByteBuffer based slices perform better when large keys |
| * are involved. When using smaller keys consider |
| * using @see org.rocksdb.Comparator |
| */ |
| public abstract class DirectComparator extends AbstractComparator<DirectSlice> { |
| |
| private final long nativeHandle_; |
| |
| public DirectComparator(final ComparatorOptions copt) { |
| super(); |
| this.nativeHandle_ = createNewDirectComparator0(copt.nativeHandle_); |
| } |
| |
| @Override |
| protected final long getNativeHandle() { |
| return nativeHandle_; |
| } |
| |
| private native long createNewDirectComparator0( |
| final long comparatorOptionsHandle); |
| } |