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.hadoop.hbase.classification.InterfaceAudience; 22 import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener; 23 24 /** 25 * A source for a replication stream has to expose this service. 26 * This service allows an application to hook into the 27 * regionserver and watch for new transactions. 28 */ 29 @InterfaceAudience.Private 30 public interface ReplicationSourceService extends ReplicationService { 31 /** 32 * Returns a WALObserver for the service. This is needed to 33 * observe log rolls and log archival events. 34 */ 35 WALActionsListener getWALActionsListener(); 36 }