/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.usergrid.persistence.core.migration.data; /** * This is the plugin lifeccyle where plugins should be executed. Plugins are executed in the following order * * */ public enum PluginPhase { /** * Runs before any data migration. This is used to prepare our migration subsystem. * For instance, a change in the migration system itself. Most plugins won't need to use this */ BOOTSTRAP, /** * This is where data migration actually happens. Plugins should be able to run concurrently. * If a plugin has a race condition with another plugin, they should be refactored into a single plugin, * with migration versions encapsulated within the plugin itself */ MIGRATE }