| /* |
| * Copyright (c) 2009, Rickard Öberg. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package org.qi4j.migration; |
| |
| import java.util.Map; |
| import org.json.JSONException; |
| import org.json.JSONObject; |
| |
| /** |
| * The Migrator implements this interface, which is invoked by MigrationOperation implementations |
| * to perform changes to EntityState during a version migration. |
| */ |
| public interface Migrator |
| { |
| boolean addProperty( JSONObject state, String name, Object defaultValue ) |
| throws JSONException; |
| |
| boolean removeProperty( JSONObject state, String name ) |
| throws JSONException; |
| |
| boolean renameProperty( JSONObject state, String from, String to ) |
| throws JSONException; |
| |
| boolean addAssociation( JSONObject state, String name, String defaultReference ) |
| throws JSONException; |
| |
| boolean removeAssociation( JSONObject state, String name ) |
| throws JSONException; |
| |
| boolean renameAssociation( JSONObject state, String from, String to ) |
| throws JSONException; |
| |
| boolean addManyAssociation( JSONObject state, String name, String... defaultReferences ) |
| throws JSONException; |
| |
| boolean removeManyAssociation( JSONObject state, String name ) |
| throws JSONException; |
| |
| boolean renameManyAssociation( JSONObject state, String from, String to ) |
| throws JSONException; |
| |
| boolean addNamedAssociation( JSONObject state, String name, Map<String, String> defaultReferences ) |
| throws JSONException; |
| |
| boolean removeNamedAssociation( JSONObject state, String name ) |
| throws JSONException; |
| |
| boolean renameNamedAssociation( JSONObject state, String from, String to ) |
| throws JSONException; |
| |
| void changeEntityType( JSONObject state, String newEntityType ) |
| throws JSONException; |
| } |