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

   1 /**
   2  *
   3  * Licensed to the Apache Software Foundation (ASF) under one
   4  * or more contributor license agreements.  See the NOTICE file
   5  * distributed with this work for additional information
   6  * regarding copyright ownership.  The ASF licenses this file
   7  * to you under the Apache License, Version 2.0 (the
   8  * "License"); you may not use this file except in compliance
   9  * with the License.  You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  */
  19 package org.apache.hadoop.hbase.regionserver;
  20
  21 import org.apache.yetus.audience.InterfaceAudience;
  22 import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionStoreSequenceIds;
  23
  24 /**
  25  * Last flushed sequence Ids for the regions and their stores on region server
  26  */
  27 @InterfaceAudience.Private
  28 public interface LastSequenceId {
  29
  30   /**
  31    * @param encodedRegionName Encoded region name
  32    * @return Last flushed sequence Id for region and its stores. Id will be -1 if it can't be
  33    *         determined
  34    */
  35   RegionStoreSequenceIds getLastSequenceId(byte[] encodedRegionName);
  36
  37 }