001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.util;
019
020import org.apache.hadoop.hbase.Cell;
021import org.apache.hadoop.hbase.HConstants;
022import org.apache.hadoop.hbase.KeyValue;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * Extracts the byte for the hash calculation from the given cell
027 */
028@InterfaceAudience.Private
029public abstract class CellHashKey extends HashKey<Cell> {
030
031  protected static final byte[] LATEST_TS = Bytes.toBytes(HConstants.LATEST_TIMESTAMP);
032  protected static final byte MAX_TYPE = KeyValue.Type.Maximum.getCode();
033
034  public CellHashKey(Cell cell) {
035    super(cell);
036  }
037}