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.yetus.audience.InterfaceAudience;
021
022/**
023 * Similar interface as {@link org.apache.hadoop.util.Progressable} but returns a boolean to support
024 * canceling the operation.
025 * <p/>
026 * Used for doing updating of OPENING znode during log replay on region open.
027 */
028@InterfaceAudience.Private
029public interface CancelableProgressable {
030
031  /**
032   * Report progress. Returns true if operations should continue, false if the operation should be
033   * canceled and rolled back.
034   * @return whether to continue (true) or cancel (false) the operation
035   */
036  boolean progress();
037
038}