1 /* 2 * Copyright 2010-2022 the original author or 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 * https://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 package org.apache.ibatis.migration; 17 18 import java.io.Reader; 19 import java.util.List; 20 21 public interface MigrationLoader { 22 23 /** 24 * @return A list of migrations (bootstrap should NOT be included). 25 */ 26 List<Change> getMigrations(); 27 28 /** 29 * @param change 30 * identifies the migration to read. 31 * @param undo 32 * whether the caller requests UNDO SQL script or not. 33 * 34 * @return A {@link Reader} of the specified SQL script. 35 */ 36 Reader getScriptReader(Change change, boolean undo); 37 38 /** 39 * @return A {@link Reader} of the bootstrap SQL script. 40 */ 41 Reader getBootstrapReader(); 42 43 /** 44 * @return A {@link Reader} of the onabort SQL script. 45 */ 46 Reader getOnAbortReader(); 47 48 }