1 /* 2 * Copyright 2021 TiKV Project Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 * 16 */ 17 18 package org.tikv.common.replica; 19 20 import java.io.Serializable; 21 import java.util.List; 22 23 public interface ReplicaSelector extends Serializable { 24 ReplicaSelector LEADER = new LeaderReplicaSelector(); 25 ReplicaSelector FOLLOWER = new FollowerReplicaSelector(); 26 ReplicaSelector LEADER_AND_FOLLOWER = new LeaderFollowerReplicaSelector(); 27 28 List<Store> select(Region region); 29 }