org.rocksdb.Comparator Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of rocksdbjni Show documentation

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.

There is a newer version: 9.7.3

Show newest version

// 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
 * byte[] based access via org.rocksdb.Slice in their
 * compare method implementation.
 *
 * byte[] based slices perform better when small keys
 * are involved. When using larger keys consider
 * using @see org.rocksdb.DirectComparator
 */
public abstract class Comparator extends AbstractComparator {

  public Comparator(final ComparatorOptions copt) {
    super(copt);
  }

  @Override
  protected long initializeNative(final long... nativeParameterHandles) {
    return createNewComparator0(nativeParameterHandles[0]);
  }

  @Override
  final ComparatorType getComparatorType() {
    return ComparatorType.JAVA_COMPARATOR;
  }

  private native long createNewComparator0(final long comparatorOptionsHandle);
}