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;
019
020import org.apache.yetus.audience.InterfaceAudience;
021
022/**
023 * Ways to keep cells marked for delete around.
024 */
025/*
026 * Don't change the TRUE/FALSE labels below, these have to be called this way for backwards
027 * compatibility.
028 */
029@InterfaceAudience.Public
030public enum KeepDeletedCells {
031  /** Deleted Cells are not retained. */
032  FALSE,
033  /**
034   * Deleted Cells are retained until they are removed by other means such TTL or VERSIONS. If no
035   * TTL is specified or no new versions of delete cells are written, they are retained forever.
036   */
037  TRUE,
038  /**
039   * Deleted Cells are retained until the delete marker expires due to TTL. This is useful when TTL
040   * is combined with MIN_VERSIONS and one wants to keep a minimum number of versions around but at
041   * the same time remove deleted cells after the TTL.
042   */
043  TTL;
044
045  public static KeepDeletedCells getValue(String val) {
046    return valueOf(val.toUpperCase());
047  }
048}