1 /* 2 * Copyright 2011 The Apache Software Foundation 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 package org.apache.hadoop.hbase.regionserver; 21 22 import java.io.IOException; 23 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 public interface ReplicationSourceService extends ReplicationService { 32 33 /** 34 * Returns a WALObserver for the service. This is needed to 35 * observe log rolls and log archival events. 36 */ 37 public WALActionsListener getWALActionsListener(); 38 }