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 java.io.IOException; 22 23 import org.apache.hadoop.classification.InterfaceAudience; 24 import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener; 25 26 /** 27 * A source for a replication stream has to expose this service. 28 * This service allows an application to hook into the 29 * regionserver and watch for new transactions. 30 */ 31 @InterfaceAudience.Private 32 public interface ReplicationSourceService extends ReplicationService { 33 34 /** 35 * Returns a WALObserver for the service. This is needed to 36 * observe log rolls and log archival events. 37 */ 38 public WALActionsListener getWALActionsListener(); 39 }