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.regionserver;
019
020import org.apache.hadoop.hbase.HBaseInterfaceAudience;
021import org.apache.yetus.audience.InterfaceAudience;
022import org.apache.yetus.audience.InterfaceStability;
023
024/**
025 * Used to track flush execution.
026 */
027@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)
028@InterfaceStability.Evolving
029public interface FlushLifeCycleTracker {
030
031  static FlushLifeCycleTracker DUMMY = new FlushLifeCycleTracker() {
032  };
033
034  /**
035   * Called if the flush request fails for some reason.
036   */
037  default void notExecuted(String reason) {
038  }
039
040  /**
041   * Called before flush is executed.
042   */
043  default void beforeExecution() {
044  }
045
046  /**
047   * Called after flush is executed.
048   */
049  default void afterExecution() {
050  }
051}