/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.accumulo.core.client.lexicoder;

/**
 * Signed long lexicoder. The encoding sorts Long.MIN_VALUE first and Long.MAX_VALUE last. The
 * encoding sorts -2l before -1l. It corresponds to the native Java sort order of Long.
 *
 * @since 1.6.0
 */
public class LongLexicoder extends ULongLexicoder {
  @Override
  public byte[] encode(Long l) {
    return super.encode(l ^ 0x8000000000000000L);
  }

  @Override
  protected Long decodeUnchecked(byte[] data, int offset, int len) {
    return super.decodeUnchecked(data, offset, len) ^ 0x8000000000000000L;
  }
}
