hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/FlushLifeCycleTracker.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.regionserver;
  19
  20 import org.apache.hadoop.hbase.HBaseInterfaceAudience;
  21 import org.apache.yetus.audience.InterfaceAudience;
  22 import org.apache.yetus.audience.InterfaceStability;
  23
  24 /**
  25  * Used to track flush execution.
  26  */
  27 @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)
  28 @InterfaceStability.Evolving
  29 public interface FlushLifeCycleTracker {
  30
  31   static FlushLifeCycleTracker DUMMY = new FlushLifeCycleTracker() {
  32   };
  33
  34   /**
  35    * Called if the flush request fails for some reason.
  36    */
  37   default void notExecuted(String reason) {
  38   }
  39
  40   /**
  41    * Called before flush is executed.
  42    */
  43   default void beforeExecution() {
  44   }
  45
  46   /**
  47    * Called after flush is executed.
  48    */
  49   default void afterExecution() {
  50   }
  51 }